A novel synthesis of 3-cyanoindoles and a new route to indole-3-carboxylic acid derivatives
作者:Josefina Garcia、Robert Greenhouse、Joseph M Muchowski、Jose Antonio Ruiz
DOI:10.1016/s0040-4039(00)94748-8
日期:1985.1
which the Schiff's base 12 is of central importance. This proposal is supported by the formation of 2-substituted indole-3-carboxylates 17 from aldehydes and the α-phenylsulfonyl-o-aminophenylacetic acid ester derivative 16.
当1-烷基甲基-2-氯-(或2-苯基磺酰基)-3-苯基磺酰吲哚与过量的叠氮化物离子(90°/ DMF)反应时,获得2-烷基-3-氰基吲哚。该反应被认为是通过片段重组过程发生的,其中席夫氏碱12是最重要的。该提议由醛和α-苯基磺酰基-o-氨基苯基乙酸酯衍生物16形成2-取代的吲哚-3-羧酸酯17得到支持。