本發(fā)明涉及一種膦氧基吲哚化合物及其衍生物的制備方法,該膦氧基吲哚衍生物具有光學(xué)活性,屬于藥物合成化學(xué)技術(shù)領(lǐng)域。
背景技術(shù):
3-苯基膦氧基吲哚衍生物在生物制藥上已經(jīng)被報道起到了重要的作用(Chem.Rev.2011,111(12),7981-8006)。近期的研究發(fā)現(xiàn),含膦取代的有機化合物表現(xiàn)出特別的生物活性和化學(xué)性質(zhì)(Org.Lett.2006,8(23),5291-5293),這就導(dǎo)致了其在有機合成、材料化學(xué)和藥物化學(xué)上有廣泛的應(yīng)用。此外,吲哚骨架是許多常見的具有值得關(guān)注的藥物價值和生物活性的天然物結(jié)構(gòu)的重要組成部分(J.Nat.Prod.2014,77(9),2068-2080)。最近,有文章報道,3-苯基膦氧基吲哚衍生物在抑制HIV-1病毒(IDX 899)的復(fù)制起到了非同一般的效果(J.Med.Chem.2011,54(1),392-395)。盡管現(xiàn)如今能夠高效合成芳基和雜芳基有機膦化合物,但是,3-苯基膦氧基吲哚衍生物的構(gòu)建方法目前還鮮少有報道。
重氮化合物是直接構(gòu)建碳-雜(C-X)鍵的最有效的方法(Chem.Soc.Rev.2013,42(12),4918-4931),然而,相比于顯著的X-H插入反應(yīng),由于膦的高配位性極易導(dǎo)致金屬催化劑毒化,導(dǎo)致P-H插入反應(yīng)的難度明顯增大(Chem.Rev.1994,94(4),1091-1160)。近期研究發(fā)現(xiàn)了由三氮唑生成金屬氮雜環(huán)卡賓,其具有新穎的反應(yīng)性和合成前景,已成為一個越來越有價值的中間體(Angew.Chem.,Int.Ed.2012,51,862)。Fokin,Gevorgyan,Davies,Sarpong,Shi以及其他研究團(tuán)隊極大的推動了新型的氮雜乙烯卡賓中間體的發(fā)展,尤其是在金屬氮雜乙烯卡賓直接構(gòu)建C(sp2)-X鍵提供了簡便的辦法。此外,近期有報道通過2-亞胺-3-吲哚重氮化合物在金屬催化下,產(chǎn)生金屬吲哚氮雜乙烯卡賓作為活性中間進(jìn)一步生成3-取代吲哚衍生物(Org.Lett.2014,16(19),5096-5099)。盡管在氮雜乙烯卡賓的插入反應(yīng)中已取得了顯著的進(jìn)步,但是通過金屬氮雜乙烯卡賓進(jìn)行P-H插入反應(yīng)構(gòu)建吲哚3號位的C(sp2)-P鍵還沒有被報道。
技術(shù)實現(xiàn)要素:
本發(fā)明的目的是公開一種原料價廉易得,操作簡單,高收率的光學(xué)活性膦氧基吲哚化合物。
為了實現(xiàn)上述目的,本發(fā)明采用了以下技術(shù)方案:
一種膦氧基吲哚化合物及其衍生物的制備方法,用重氮吲哚化合物和膦氧基化合物在六氟磷酸四乙腈銅的催化下,實現(xiàn)P-H插入反應(yīng),得到膦氧基吲哚化合物及其衍生物,具體步驟如下:
(1)先稱取1eq重氮吲哚化合物,將重氮吲哚化合物溶解于有機溶劑中,濃度控制為0.3~0.5mol/L,得到重氮溶液;
(2)在一個圓底燒瓶中加入1~1.2eq的膦氧基化合物和0.05~0.10eq的六氟磷酸乙腈銅,加入有機溶劑,控制溶液中膦氧基化合物的濃度為0.3~0.5mol/L;
(3)將重氮溶液緩慢滴加入圓底燒瓶中,在1~2小時滴加結(jié)束,攪拌反應(yīng)1-12小時,得到粗產(chǎn)物,
(4)將粗產(chǎn)物用體積比為乙酸乙酯:石油醚=1:6~3的溶液進(jìn)行柱層析,得到所述膦氧基吲哚化合物及其衍生物。
進(jìn)一步的,所述有機溶劑為三氯甲烷。
進(jìn)一步的,所述重氮吲哚化合物由相應(yīng)的吲哚和疊氮化合物制備得到。
進(jìn)一步的,所述重氮化合物為N-(1-甲基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-乙基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-異丙基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-芐基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-烯丙基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-甲基-5-甲基-吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-甲基-5-氟-吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-甲基-5-氯-吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-甲基-5-溴-吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-甲基吲哚-2-亞基-3-重氮)-4-溴苯磺酰胺、N-(1-甲基吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺、N-(1-甲基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺、N-(1-甲基-5-甲氧基吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺、N-(1-甲基-5-氟吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺、N-(1-甲基-5-氯吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺以及N-(1-甲基-5-溴吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺中的任意一種。
進(jìn)一步的,所述膦氧基化合物為二苯基膦氧、二(4-甲氧基苯基)膦氧、二(2-甲基苯基)膦氧、二(4-氟苯基)膦氧、二(3,5-雙三氟甲基苯基)膦氧、9,10-二氫-9-氧雜-10-磷雜菲-10-氧化物、苯基膦酸乙酯以及苯基膦酸薄荷酯中的任意一種。
與現(xiàn)有技術(shù)相比較,本發(fā)明具備的有益效果:
本發(fā)明公開了一種通過2-亞胺-3-重氮吲哚以及膦氫化合物作為反應(yīng)底物,合成一系列3-苯基膦氧基吲哚衍生物的新型合成策略。在這個反應(yīng)中,2-亞胺-3-重氮吲哚作為重要的α-亞胺金屬卡賓前體。這個方法的特色就是提供一種通過金屬催化,一步直接構(gòu)建C(sp2)-P鍵的路線。該反應(yīng)具有操作簡單,反應(yīng)條件溫和且能實現(xiàn)克量級反應(yīng)。
本發(fā)明所用的原料,重氮化合物、膦氫化合物、有機溶劑和催化劑廉價易得,因此本發(fā)明合成膦氧基吲哚衍生物成本低廉。
本發(fā)明合成路線簡單,一步構(gòu)建目標(biāo)產(chǎn)物。
本發(fā)明具有原子經(jīng)濟性,高選擇性,高收率等,符合綠色化學(xué)的要求。
本發(fā)明能快速簡單的合成出一系列膦氧基吲哚衍生物,提供多樣性的化合物骨架,對新藥篩選和制藥工藝有很大的意義。
具體實施方式
實施例1
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3a。收率82%。
1H NMR(600MHz,Chloroform-d)δ10.21(s,1H),7.53–7.46(m,3H),7.43(d,J=8.3Hz,1H),7.41–7.30(m,8H),7.29–7.25(m,1H),6.99(t,J=7.6Hz,1H),6.78(d,J=8.0Hz,1H),6.73(d,J=8.1Hz,2H),4.03(s,3H),2.08(s,3H);13C NMR(151MHz,Chloroform-d)δ143.65,143.15(d,J=12.5Hz),136.75(d,J=11.2Hz),134.23,133.29(d,J=109.5Hz),131.73(d,J=2.7Hz),131.39(d,J=11.0Hz),129.03,128.26(d,J=12.7Hz),128.01,126.97(d,J=9.9Hz),122.56,121.73,119.75,110.61,90.24(d,J=125.1Hz),32.40,21.70;31P NMR(243MHz,CDCl3)δ28.18。
實施例2
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-乙基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3b。收率76%。
1H NMR(600MHz,Chloroform-d)δ10.24(s,1H),7.55–7.47(m,5H),7.40–7.30(m,8H),7.24(t,J=7.4Hz,1H),6.99–6.94(m,1H),6.76(d,J=8.0Hz,1H),6.72(d,J=8.0Hz,2H),4.71–4.63(m,2H),2.07(s,3H),1.56(t,J=7.2Hz,3H);13C NMR(151MHz,Chloroform-d)δ143.61,142.63(d,J=12.3Hz),135.74(d,J=11.2Hz),134.12,133.31(d,J=109.5Hz),131.72(d,J=2.7Hz),131.42(d,J=11.0Hz),128.99,128.26(d,J=12.6Hz),128.11,127.49(d,J=9.9Hz),122.45,121.56,119.96,111.20,90.69(d,J=124.5Hz),40.18,21.70,14.40;31P NMR(243MHz,CDCl3)δ28.33。
實施例3
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-異丙基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3c。收率71%。
1H NMR(600MHz,Chloroform-d)δ10.27(s,1H),7.72(d,J=8.4Hz,1H),7.55–7.45(m,4H),7.40–7.30(m,8H),7.20(t,J=7.5Hz,1H),6.94(t,J=7.6Hz,1H),6.77(d,J=8.0Hz,1H),6.71(d,J=8.0Hz,2H),5.61–5.51(m,1H),2.07(s,3H),1.76(d,J=7.0Hz,6H);13C NMR(151MHz,Chloroform-d)δ143.58,142.44(d,J=12.3Hz),134.34(d,J=11.0Hz),134.05,133.33(d,J=109.5Hz),131.67(d,J=2.6Hz),131.43(d,J=10.9Hz),128.97,128.28,128.20,128.11,121.89,121.14,120.26,113.48,90.35(d,J=124.8Hz),49.24,21.71,21.21;31P NMR(243MHz,CDCl3)δ28.37。
實施例4
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-芐基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3d。收率58%。
1H NMR(600MHz,Chloroform-d)δ10.31(s,1H),7.58–7.49(m,4H),7.45–7.34(m,8H),7.34–7.30(m,2H),7.29–7.24(m,2H),7.17–7.09(m,3H),6.94(t,J=7.5Hz,1H),6.78(d,J=8.0Hz,1H),6.75(d,J=8.1Hz,2H),5.88(s,2H),2.09(s,3H);13C NMR(151MHz,Chloroform-d)δ143.72,143.31(d,J=12.4Hz),136.88,136.14(d,J=11.0Hz),134.12,133.25(d,J=109.6Hz),131.81(d,J=2.6Hz),131.42(d,J=10.9Hz),129.04,128.62,128.34(d,J=12.7Hz),128.21,127.47,127.41,126.74,122.69,121.82,119.93,112.07,91.56(d,J=123.4Hz),48.82,21.73;31P NMR(243MHz,CDCl3)δ28.31。
實施例5
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-烯丙基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3e。收率79%。
1H NMR(600MHz,Chloroform-d)δ10.26(s,1H),7.56–7.46(m,5H),7.41–7.31(m,8H),7.21(t,J=7.7Hz,1H),6.96(t,J=7.6Hz,1H),6.76(d,J=8.0Hz,1H),6.72(d,J=8.1Hz,2H),6.17–6.08(m,1H),5.31(d,J=11.1Hz,1H),5.25–5.19(m,3H),2.07(s,3H);13C NMR(151MHz,Chloroform-d)δ143.66,142.85(d,J=12.4Hz),136.43(d,J=11.1Hz),134.04,133.53,133.22(d,J=109.6Hz),131.76(d,J=2.7Hz),131.40(d,J=10.9Hz),129.00,128.29(d,J=12.7Hz),128.14,127.30(d,J=9.8Hz),122.52,121.74,119.84,117.45,111.91,91.00(d,J=123.9Hz),48.15,21.70;31P NMR(243MHz,CDCl3)δ28.27。
實施例6
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基-5-甲基-吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3f。收率53%。
1H NMR(600MHz,Chloroform-d)δ10.19(s,1H),7.54–7.45(m,4H),7.41–7.29(m,9H),7.08(d,J=8.4Hz,1H),6.73(d,J=8.1Hz,2H),6.54–6.51(m,1H),4.00(s,3H),2.22(s,3H),2.08(s,3H);13C NMR(151MHz,Chloroform-d)δ143.58,142.99(d,J=12.7Hz),135.06(d,J=11.4Hz),134.26,133.36(d,J=109.4Hz),131.67(d,J=2.7Hz),131.41(d,J=10.9Hz),131.17,129.01,128.23(d,J=12.6Hz),128.00,127.19(d,J=9.8Hz),124.07,119.50,110.25,89.58(d,J=125.5Hz),32.40,21.69,21.53;31P NMR(243MHz,CDCl3)δ28.39。
實施例7
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基-5-氟-吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3g。收率74%。
1H NMR(600MHz,Chloroform-d)δ10.19(s,1H),7.53–7.48(m,4H),7.37–7.32(m,9H),7.02–6.95(m,1H),6.75(d,J=8.0Hz,2H),6.38(dd,J=9.5,2.5Hz,1H),4.01(s,3H),2.09(s,3H);13C NMR(151MHz,Chloroform-d)δ158.70(d,J=237.6Hz),144.12(d,J=12.4Hz),143.77,134.25,133.19,132.91(d,J=109.5Hz),131.91(d,J=2.7Hz),131.33(d,J=10.9Hz),129.07,128.38(d,J=12.7Hz),127.95,127.42(t,J=10.0Hz),111.49(d,J=9.7Hz),110.87(d,J=26.0Hz),105.07(d,J=25.0Hz),90.51(d,J=129.3Hz),32.65,21.70;31P NMR(243MHz,CDCl3)δ27.89;19F NMR(565MHz,CDCl3)δ-120.59。
實施例8
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基-5-氯-吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3h。收率65%。
1H NMR(600MHz,Chloroform-d)δ10.23(s,1H),7.56–7.47(m,4H),7.39–7.31(m,9H),7.20(dd,J=8.7,2.0Hz,1H),6.75(d,J=8.0Hz,2H),6.68(d,J=1.9Hz,1H),4.01(s,3H),2.09(s,3H);13C NMR(151MHz,Chloroform-d)δ144.10(d,J=12.3Hz),143.80,135.16(d,J=10.9Hz),134.21,132.86(d,J=109.8Hz),131.95(d,J=2.7Hz),131.33(d,J=11.0Hz),129.09,128.41(d,J=12.7Hz),127.95,127.91,127.51,122.98,119.02,111.67,90.21(d,J=124.2Hz),32.63,21.70;31P NMR(243MHz,CDCl3)δ27.80。
實施例9
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基-5-溴-吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3i。收率59%。
1H NMR(600MHz,Chloroform-d)δ10.25(s,1H),7.56-7.47(m,4H),7.40-7.29(m,10H),6.83(d,J=1.8Hz,1H),6.75(d,J=8.0Hz,2H),4.00(s,3H),2.09(s,3H);13C NMR(151MHz,Chloroform-d)δ143.99(d,J=12.3Hz),143.80,135.46(d,J=10.9Hz),134.24,132.86(d,J=109.9Hz),131.95(d,J=2.7Hz),131.33(d,J=11.0Hz),129.09,128.53(d,J=9.5Hz),128.41(d,J=12.7Hz),127.94,125.57,122.04,115.09,112.07,90.16(d,J=124.4Hz),32.60,21.71;31P NMR(243MHz,CDCl3)δ27.79。
實施例10
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-4-溴苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3j。收率65%。
1H NMR(600MHz,Chloroform-d)δ10.31(s,1H),7.55(m,2H),7.49-7.43(m,3H),7.40-7.35(m,8H),7.30-7.27(m,1H),7.06-7.03(m,2H),7.02-6.99(m,1H),6.79(d,J=8.0Hz,1H),4.02(s,3H).;13C NMR(151MHz,Chloroform-d)δ142.44(d,J=12.5Hz),136.72(d,J=11.1Hz),136.21,132.97(d,J=109.7Hz),132.22(d,J=2.7Hz),131.64,131.21(d,J=11.0Hz),129.55,128.55,128.46,126.88(d,J=9.8Hz),122.81,121.93,119.83,110.68,90.71(d,J=124.5Hz),32.36;31P NMR(243MHz,CDCl3)δ28.37。
實施例11
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-4-三氟甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3k。收率70%。
1H NMR(600MHz,Chloroform-d)δ10.44(s,1H),7.80–7.78(m,2H),7.52–7.48(m,2H),7.47–7.44(m,1H),7.39–7.32(m,8H),7.31–7.27(m,1H),7.22(d,J=8.3Hz,2H),7.01(t,J=7.6Hz,1H),6.79(d,J=8.0Hz,1H),4.04(s,3H);13C NMR(151MHz,Chloroform-d)δ142.16(d,J=12.2Hz),140.95,136.73(d,J=11.1Hz),134.51,134.29,133.11(d,J=109.8Hz),132.24(d,J=2.7Hz),131.18(d,J=11.0Hz),128.75,128.44(d,J=12.7Hz),126.80(d,J=9.7Hz),125.38(d,J=3.7Hz),122.91,122.00,119.87,110.71,90.73(d,J=124.1Hz),32.40;31P NMR(243MHz,CDCl3)δ28.53;19F NMR(565MHz,CDCl3)δ-62.87。
實施例12
稱取二苯基膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=6:1)分離得到產(chǎn)物3l。收率88%。
1H NMR(600MHz,Chloroform-d)δ10.45(s,1H),7.55–7.46(m,6H),7.41(d,J=8.3Hz,1H),7.38–7.33(m,4H),7.24(t,J=7.4Hz,1H),7.07(s,2H),7.02–6.98(m,1H),6.85(d,J=8.0Hz,1H),3.96(s,3H),3.94–3.87(m,2H),2.90–2.85(m,1H),1.25(d,J=6.9Hz,6H),1.11(d,J=6.7Hz,12H);13C NMR(151MHz,Chloroform-d)δ153.04,151.11,143.58(d,J=12.6Hz),136.62(d,J=11.3Hz),133.62,133.04(d,J=42.4Hz),131.83(d,J=2.7Hz),131.66(d,J=11.0Hz),128.28(d,J=12.6Hz),127.06(d,J=10.0Hz),123.85,122.29,121.59,119.57,110.29,90.31(d,J=125.9Hz),33.96,32.23,30.51,24.81,23.48;31P NMR(243MHz,CDCl3)δ28.55。
實施例13
稱取二(4-甲氧基苯基)膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3m。收率88%。
1H NMR(600MHz,Chloroform-d)δ10.38(s,1H),7.53–7.50(m,2H),7.42(d,J=8.3Hz,1H),7.31–7.23(m,5H),6.99(t,J=7.6Hz,1H),6.84–6.81(m,4H),6.79–6.76(m,3H),4.01(s,3H),3.83(s,6H),2.10(s,3H);13C NMR(151MHz,Chloroform-d)δ162.18,143.60,142.93(d,J=12.6Hz),136.72(d,J=11.1Hz),134.29,133.28(d,J=12.4Hz),128.95,128.06,127.05(d,J=9.6Hz),125.18(d,J=116.1Hz),122.39,121.58,119.79,113.71(d,J=13.7Hz),110.51,91.13(d,J=125.3Hz),55.27,32.36,21.48;31P NMR(243MHz,CDCl3)δ27.17。
實施例14
稱取二(2-甲基苯基)膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3n。收率71%。
1H NMR(600MHz,Chloroform-d)δ10.41(s,1H),7.55-7.49(m,2H),7.45-7.35(m,3H),7.26-7.14(m,3H),7.07-7.01(m,2H),6.88(m,3H),6.66(d,J=8.0Hz,2H),6.48(d,J=8.0Hz,1H),4.04(s,3H),2.36(s,6H),2.05(s,3H);13C NMR(151MHz,Chloroform-d)δ143.39,142.89(d,J=12.9Hz),136.50(d,J=10.9Hz),134.53,132.20,131.73,131.54,128.80,127.84,126.84(d,J=9.4Hz),125.39(d,J=13.7Hz),122.48,121.62,119.44,110.34,90.60(d,J=123.3Hz),32.04,21.70,21.14;31P NMR(243MHz,CDCl3)δ33.51。
實施例15
稱取二(4-氟苯基)膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3o。收率57%。
1H NMR(600MHz,Chloroform-d)δ10.04(s,1H),7.51–7.44(m,3H),7.40–7.33(m,4H),7.31–7.26(m,1H),7.07–6.98(m,5H),6.78(d,J=8.1Hz,2H),6.71(d,J=8.0Hz,1H),4.03(s,3H),2.13(s,3H);13C NMR(151MHz,Chloroform-d)δ164.92(dd,J=253.8,3.1Hz),143.89,143.15(d,J=12.8Hz),136.76(d,J=11.3Hz),134.31,133.89(dd,J=12.6,8.8Hz),129.24(d,J=107.0Hz),128.98,128.05,126.71(d,J=10.0Hz),126.37,122.42(d,J=118.5Hz),119.34,115.76(dd,J=21.4,13.9Hz),110.85,89.92(d,J=127.5Hz),32.44,21.50;31P NMR(243MHz,CDCl3)δ26.34;19F NMR(565MHz,CDCl3)δ-106.27。
實施例16
稱取二(3,5-雙三氟甲基苯基)膦氧(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3p。收率86%。
1H NMR(600MHz,Chloroform-d)δ9.48(s,1H),8.06(s,2H),7.91–7.80(m,4H),7.59–7.47(m,3H),7.38(t,J=7.8Hz,1H),7.13(t,J=7.3Hz,1H),6.79(d,J=8.0Hz,2H),6.70(d,J=8.0Hz,1H),4.09(s,3H),1.98(s,3H);13C NMR(151MHz,Chloroform-d)δ144.03(d,J=13.8Hz),143.80,136.90(d,J=12.2Hz),136.03,135.31,134.15,132.63(d,J=13.0Hz),132.40(d,J=12.8Hz),132.17(d,J=12.8Hz),131.05(d,J=11.8Hz),128.98,128.21,126.15,125.76(d,J=10.4Hz),123.79,123.40,123.12,121.59,118.15,111.66,86.41(d,J=132.6Hz),32.66,21.13;31P NMR(243MHz,CDCl3)δ23.60;19F NMR(565MHz,CDCl3)δ-63.15。
實施例17
稱取9,10-二氫-9-氧雜-10-磷雜菲-10-氧化物(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3q。收率67%。
1H NMR(600MHz,Chloroform-d)δ9.37(s,1H),8.08–7.98(m,2H),7.79(d,J=8.3Hz,2H),7.64(t,J=7.7Hz,1H),7.44(d,J=8.3Hz,1H),7.38(t,J=7.7Hz,1H),7.33–7.29(m,3H),7.26(t,J=7.7Hz,1H),7.18–7.13(m,1H),7.08(d,J=7.9Hz,1H),6.93(t,J=7.5Hz,1H),6.64(dd,J=15.1,7.2Hz,1H),6.60(d,J=8.0Hz,1H),4.06(s,3H),2.45(s,3H);13C NMR(151MHz,Chloroform-d)δ148.98(d,J=8.1Hz),144.41,143.77(d,J=18.3Hz),136.75(d,J=13.2Hz),135.23(d,J=6.0Hz),134.64,132.88(d,J=2.2Hz),130.59(d,J=13.7Hz),130.32,129.64,128.89,127.77(d,J=15.0Hz),126.52(d,J=10.3Hz),125.44(d,J=137.1Hz),125.04,124.57,123.61(d,J=9.8Hz),123.06,122.11,121.97(d,J=11.7Hz),120.55(d,J=5.9Hz),119.64,110.63,88.76(d,J=176.5Hz),32.59,21.79;31P NMR(243MHz,CDCl3)δ21.39。
實施例18
稱取苯基膦酸乙酯(0.2mmol)以及六氟磷酸四乙腈銅(3.72mg,0.01mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌1小時后,再通過柱層析(石油醚:乙酸乙酯=3:1)分離得到產(chǎn)物3r。收率42%。
1H NMR(600MHz,Chloroform-d)δ9.65(s,1H),7.55(d,J=8.1Hz,2H),7.49–7.43(m,3H),7.41–7.32(m,3H),7.32–7.25(m,2H),7.20(t,J=7.6Hz,1H),6.87(d,J=8.1Hz,2H),4.01(s,3H),3.90–3.82(m,1H),3.66–3.56(m,1H),2.15(s,3H),1.20(t,J=7.1Hz,3H);13C NMR(151MHz,Chloroform-d)δ143.93,143.20(d,J=17.1Hz),136.69(d,J=12.1Hz),134.47,132.39(d,J=152.1Hz),131.52(d,J=2.9Hz),130.17(d,J=11.3Hz),129.26,128.10,128.01(d,J=14.2Hz),126.76(d,J=9.2Hz),122.93,122.12,119.96,110.61,90.29(d,J=155.8Hz),60.89(d,J=6.1Hz),32.57,21.62,16.36(d,J=7.0Hz);31P NMR(243MHz,CDCl3)δ31.55。
實施例1~18中,非光學(xué)活性的膦氧基吲哚化合物的反應(yīng)方程式是:
實施例19
稱取實施例1的產(chǎn)物3a(0.1mmol),在0℃環(huán)境下,加入濃硫酸0.5mL,在室溫下反應(yīng)2h。隨后反應(yīng)液冷卻至0℃,加入約50mL冰水萃滅,再緩慢加入飽和NaHCO3溶液10mL。之后用CHCl3(20ml×3)萃取。有機相用無水硫酸鈉干燥,過濾,旋干,再通過柱層析(二氯甲烷:甲醇=3:1)分離得到產(chǎn)物4a。收率91%。
1H NMR(600MHz,Chloroform-d)δ7.80–7.73(m,4H),7.55–7.50(m,2H),7.46–7.40(m,4H),7.14(d,J=8.1Hz,1H),7.06–7.01(m,1H),6.92–6.86(m,1H),6.64(d,J=7.8Hz,1H),5.74(s,2H),3.56(s,3H);13C NMR(151MHz,Chloroform-d)δ154.28(d,J=13.7Hz),135.17,135.10,134.61(d,J=107.7Hz),131.67(d,J=10.8Hz),128.83(d,J=11.4Hz),128.40(d,J=12.3Hz),120.81,119.29,117.66,107.95,76.02(d,J=136.5Hz),27.95;31P NMR(243MHz,CDCl3)δ29.13。
實施例19中,產(chǎn)物的衍生的反應(yīng)方程式是:
實施例20
稱取苯基膦酸薄荷酯(0.2mmol)(RP/SP>99/1)以及六氟磷酸四乙腈銅(7.45mg,0.02mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌8~12小時后,再通過柱層析(石油醚:乙酸乙酯=6:1)分離得到產(chǎn)物5a。收率51%,dr>20:1。
1H NMR(600MHz,Chloroform-d)δ10.31(s,1H),7.59–7.52(m,2H),7.43(t,J=7.0Hz,1H),7.36–7.29(m,3H),7.26–7.20(m,2H),7.18(s,2H),7.06(t,J=7.5Hz,1H),4.30–4.20(m,1H),4.09–4.02(m,2H),3.85(s,3H),2.99–2.90(m,1H),2.38(d,J=12.6Hz,1H),1.9–1.85(m,1H),1.66–1.56(m,2H),1.48–1.26(m,15H),1.06(d,J=6.7Hz,6H),0.93(d,J=6.4Hz,3H),0.92–0.82(m,2H),0.69(d,J=7.0Hz,3H),0.09(d,J=6.8Hz,3H);13C NMR(151MHz,Chloroform-d)δ153.36,151.24,143.16(d,J=16.5Hz),136.46(d,J=12.2Hz),133.66(d,J=150.7Hz),133.50,131.54(d,J=2.7Hz),130.90(d,J=11.1Hz),128.12(d,J=13.9Hz),126.76(d,J=9.9Hz),124.05,122.37,121.38,119.92,109.83,91.79(d,J=156.1Hz),77.40(d,J=7.1Hz),48.83(d,J=6.6Hz),44.01,34.13,34.10,32.07,31.56,30.36,25.10,24.79(d,J=20.4Hz),23.57(d,J=15.6Hz),22.64,22.09,21.02,14.80;31P NMR(243MHz,CDCl3)δ29.32。
實施例21
稱取苯基膦酸薄荷酯(0.2mmol)(RP/SP>99/1)以及六氟磷酸四乙腈銅(7.45mg,0.02mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基-5-甲氧基吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌8~12小時后,再通過柱層析(石油醚:乙酸乙酯=6:1)分離得到產(chǎn)物5b。收率56%,dr>20:1。
1H NMR(600MHz,Chloroform-d)δ10.18(s,1H),7.58–7.53(m,2H),7.45–7.41(m,1H),7.33–7.29(m,2H),7.21(dd,J=8.9,1.7Hz,1H),7.17(s,2H),6.86(dd,J=8.9,2.5Hz,1H),6.66(d,J=2.4Hz,1H),4.29–4.22(m,1H),4.09–4.03(m,2H),3.80(s,3H),3.67(s,3H),2.98–2.90(m,1H),2.40(d,J=12.6Hz,1H),1.98–1.90(m,1H),1.66–1.61(m,1H),1.61–1.56(m,1H),1.49–1.25(m,15H),1.07(d,J=6.7Hz,6H),0.93(d,J=6.5Hz,3H),0.91–0.82(m,2H),0.72(d,J=7.0Hz,3H),0.09(d,J=6.8Hz,3H);13C NMR(151MHz,Chloroform-d)δ155.14,153.35,151.26,143.06(d,J=16.5Hz),133.63(d,J=150.3Hz),133.43,131.54(d,J=2.8Hz),131.47(d,J=12.2Hz),130.92(d,J=11.0Hz),128.10(d,J=13.8Hz),127.41(d,J=9.6Hz),124.03,111.82,110.57,102.50,91.59(d,J=156.6Hz),77.30(d,J=7.1Hz),55.63,48.86(d,J=6.6Hz),44.06,34.14,34.10,32.13,31.54,30.32,25.18,24.81(d,J=14.6Hz),23.56(d,J=16.1Hz),22.65,22.09,21.05,14.76;31P NMR(243MHz,CDCl3)δ29.19。
實施例22
稱取苯基膦酸薄荷酯(0.2mmol)(RP/SP>99/1)以及六氟磷酸四乙腈銅(7.45mg,0.02mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基-5-氟吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌8~12小時后,再通過柱層析(石油醚:乙酸乙酯=6:1)分離得到產(chǎn)物5c。收率51%,dr>20:1。
1H NMR(600MHz,Chloroform-d)δ10.30(s,1H),7.52(dd,J=13.3,7.6Hz,2H),7.47–7.43(m,1H),7.34–7.30(m,2H),7.26(dd,J=9.0,4.2Hz,1H),7.18(s,2H),6.99–6.95(m,1H),6.88(dd,J=9.5,2.4Hz,1H),4.27–4.20(m,1H),4.06–4.01(m,2H),3.84(s,3H),3.00–2.91(m,1H),2.35(d,J=12.7Hz,1H),1.90–1.84(m,1H),1.66–1.57(m,2H),1.44–1.27(m,15H),1.06(d,J=6.7Hz,6H),0.92(d,J=6.4Hz,3H),0.90–0.83(m,2H),0.73(d,J=7.0Hz,3H),0.15(d,J=6.7Hz,3H);13C NMR(151MHz,Chloroform-d)δ158.72(d,J=237.1Hz),153.48,151.23,144.18(d,J=16.3Hz),133.40,133.27(d,J=150.8Hz),132.93(d,J=11.9Hz),131.74(d),130.82(d,J=11.1Hz),128.24(d,J=13.9Hz),127.30(t,J=10.1Hz),124.10,110.71(d,J=9.7Hz),110.52(d,J=26.0Hz),105.30(d,J=24.8Hz),92.16(d,J=160.3Hz),77.57(d,J=7.1Hz),48.78(d,J=6.5Hz),43.96,34.10,34.08,32.37,31.58,30.39,25.20,24.79(d,J=18.7Hz),23.56(d,J=17.5Hz),22.62,22.06,21.03,14.78;31P NMR(243MHz,CDCl3)δ28.70;19F NMR(565MHz,CDCl3)δ-121.62。
實施例23
稱取苯基膦酸薄荷酯(0.2mmol)(RP/SP>99/1)以及六氟磷酸四乙腈銅(7.45mg,0.02mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基-5-氯吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌8~12小時后,再通過柱層析(石油醚:乙酸乙酯=6:1)分離得到產(chǎn)物5d。收率48%,dr>20:1。
1H NMR(600MHz,Chloroform-d)δ10.33(s,1H),7.54–7.49(m,2H),7.47–7.44(m,1H),7.35–7.30(m,2H),7.26(dd,J=9.4,1.8Hz,1H),7.21–7.16(m,4H),4.23–4.16(m,1H),4.05–3.99(m,2H),3.84(s,3H),2.97–2.91(m,1H),2.37–2.33(m,1H),1.92–1.85(m,1H),1.66–1.57(m,2H),1.44–1.26(m,15H),1.05(d,J=6.8Hz,6H),0.92(d,J=6.4Hz,3H),0.89–0.83(m,2H),0.74(d,J=7.0Hz,3H),0.14(d,J=6.9Hz,3H);13C NMR(151MHz,Chloroform-d)δ153.52,151.22,144.18(d,J=16.3Hz),134.86(d,J=11.8Hz),133.33,133.24(d,J=151.3Hz),131.77,130.76(d,J=11.1Hz),128.27(d,J=14.0Hz),127.72(d,J=9.4Hz),127.25,124.11,122.72,119.38,110.92,91.70(d,J=155.4Hz),77.77(d,J=7.2Hz),48.79(d,J=6.7Hz),43.95,34.10,34.05,32.37,31.58,30.39,25.27,24.79(d,J=14.0Hz),23.55(d,J=17.1Hz),22.62,22.05,21.05,14.75;31P NMR(243MHz,CDCl3)δ28.67。
實施例24
稱取苯基膦酸薄荷酯(0.2mmol)(RP/SP>99/1)以及六氟磷酸四乙腈銅(7.45mg,0.02mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-甲基-5-溴吲哚-2-亞基-3-重氮)-2,4,6-三異丙基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌8~12小時后,再通過柱層析(石油醚:乙酸乙酯=6:1)分離得到產(chǎn)物5e。收率52%,dr>20:1。
1H NMR(600MHz,Chloroform-d)δ10.34(s,1H),7.54–7.49(m,2H),7.48–7.44(m,1H),7.36(d,J=1.9Hz,1H),7.35–7.31(m,3H),7.21(dd,J=8.6,1.7Hz,1H),7.18(s,2H),4.22–4.16(m,1H),4.05–4.00(m,2H),3.84(s,3H),2.97–2.92(m,1H),2.38–2.33(m,1H),1.93–1.86(m,1H),1.66–1.57(m,2H),1.45–1.25(m,15H),1.05(d,J=6.8Hz,6H),0.92(d,J=6.4Hz,3H),0.91–0.85(m,2H),0.76(d,J=7.1Hz,3H),0.13(d,J=6.8Hz,3H);13C NMR(151MHz,Chloroform-d)δ153.54,151.22,144.08(d,J=16.4Hz),135.17(d,J=11.7Hz),133.32,133.22(d,J=151.4Hz),131.80(d,J=2.8Hz),130.75(d,J=11.1Hz),128.28(d,J=14.0Hz),128.27,125.34,124.11,122.41,114.85,111.33,91.59(d,J=155.1Hz),77.81(d,J=7.2Hz),48.79(d,J=6.7Hz),43.97,34.11,34.06,32.35,31.59,30.39,25.29,24.79(d,J=12.6Hz),23.55(d,J=17.0Hz),22.63,22.05,21.08,14.76;31P NMR(243MHz,CDCl3)δ28.69。
實施例25
稱取苯基膦酸薄荷酯(0.2mmol)(RP/SP>99/1)以及六氟磷酸四乙腈銅(7.45mg,0.02mmol)于圓底燒瓶中,加入0.8mL三氯甲烷,置于5050℃油浴中;再取N-(1-芐基吲哚-2-亞基-3-重氮)-4-甲基苯磺酰胺(0.2mmol)溶于0.8mL三氯甲烷,并通過蠕動泵1小時注入反應(yīng)體系中,注入完畢后,繼續(xù)攪拌8~12小時后,再通過柱層析(石油醚:乙酸乙酯=6:1)分離得到產(chǎn)物5f。收率42%,dr>20:1。
1H NMR(600MHz,Chloroform-d)δ10.06(s,1H),7.71(d,J=8.0Hz,2H),7.58–7.54(m,1H),7.39–7.31(m,9H),7.27–7.21(m,3H),7.13(t,J=7.5Hz,1H),7.01(d,J=8.0Hz,2H),6.24(d,J=16.4Hz,1H),5.64(d,J=16.4Hz,1H),4.15–4.06(m,1H),2.39–2.33(m,1H),2.26(s,3H),1.81–1.74(m,2H),1.72–1.68(m,1H),1.65–1.60(m,1H),1.52–1.33(m,2H),1.01(d,J=6.5Hz,3H),0.91(m,2H),0.67(d,J=7.0Hz,3H),0.04(d,J=6.8Hz,3H);13C NMR(151MHz,Chloroform-d)δ144.04,142.87(d,J=16.7Hz),136.76,135.97(d,J=11.8Hz),134.26,133.20(d,J=150.1Hz),131.47(d,J=2.8Hz),130.32(d,J=11.7Hz),129.31,128.50,128.43,127.97(d,J=14.2Hz),127.44,127.24(d,J=9.1Hz),126.93,122.86,121.58,120.62,111.76,92.54(d,J=155.1Hz),77.73(d,J=7.2Hz),48.91,48.51(d,J=6.4Hz),44.07,34.02,31.68,24.96,22.65,22.02,21.66,20.74,14.73;31P NMR(243MHz,CDCl3)δ31.31。
實施例20~25中,具有光學(xué)活性的膦氧基吲哚化合物的反應(yīng)方程式是:
實施例26
一種膦氧基吲哚化合物及其衍生物的制備方法,用重氮吲哚化合物和膦氧基化合物在六氟磷酸四乙腈銅的催化下,實現(xiàn)P-H插入反應(yīng),得到膦氧基吲哚化合物及其衍生物,具體步驟如下:
(1)先稱取1eq重氮吲哚化合物,將重氮吲哚化合物溶解于有機溶劑中,濃度控制為0.3mol/L,得到重氮溶液;
(2)在一個圓底燒瓶中加入1eq的膦氧基化合物和0.08eq的六氟磷酸乙腈銅,加入有機溶劑,控制溶液中膦氧基化合物的濃度為0.3mol/L;
(3)圓底燒瓶置于55℃油浴中,將重氮溶液緩慢滴加入圓底燒瓶中,在2小時滴加結(jié)束,攪拌反應(yīng)12小時,得到粗產(chǎn)物,
(4)將粗產(chǎn)物用體積比為乙酸乙酯:石油醚=1:6的溶液進(jìn)行柱層析,得到所述膦氧基吲哚化合物及其衍生物。