NUCLEOPHILIC ADDITION TO 1,2-DIMETHYL-3-ARYLSULFONYL- 4,5-DIHYDROIMIDAZOLIUM IODIDES
作者:Chizhong Xia、Jianxin Chen、Hongxing Wang、Congmin Kang、Bingjun Zhao、Yanping Ni、Peiwen Zhou
DOI:10.1081/scc-120012987
日期:2002.1
ABSTRACT Benzenesulfonamide derivatives 6–11 were prepared from the reactions of arylsulfonylimidazolium iodides 1–5 with malononitrile or nitromethane anions in high yield. The addition product 11 reacted further with tryptamine to produce 2,3,4,9-tetrahydro-1-methyl-1-nitromethyl-1H-pyrido[3,4]indole (12) in excellent yield through Pictet–Spengler type reaction.
摘要 苯磺酰胺衍生物 6-11 是由芳基磺酰基咪唑鎓碘化物 1-5 与丙二腈或硝基甲烷阴离子以高产率反应制备的。加成产物 11 与色胺进一步反应生成 2,3,4,9-四氢-1-甲基-1-硝基甲基-1H-吡啶并[3,4]吲哚 (12),通过 Pictet-Spengler 型反应以优异的收率。