Knoevenagel Reactions of Indole-3-carbaldehyde. Synthesis of 3-Substituted Indole Derivatives
作者:V. D. Dyachenko、I. O. Matusov、I. V. Dyachenko、V. G. Nenajdenko
DOI:10.1134/s1070428018120060
日期:2018.12
1H-indole-3-carbaldehyde with various CH acids gave a number of substituted 3-(1H-indol-3-yl)acrylonitriles and acrylamides which were alkylated to afford the corresponding N-alkyl derivatives. The latter were used as Michael acceptors in the synthesis of 4H-pyran, pyridine, 5,6,7,8-tetrahydroquinoline, and [1,3]thiazolo[3,2-a]pyridine derivatives containing an indole fragment.
1 H-吲哚-3-甲醛与各种CH酸的Knoevenagel缩合得到许多取代的3-(1H-吲哚-3-基)丙烯腈和丙烯酰胺,将它们烷基化以提供相应的N-烷基衍生物。后者在含有吲哚片段的4 H-吡喃,吡啶,5,6,7,8-四氢喹啉和[1,3]噻唑并[3,2- a ]吡啶衍生物的合成中用作迈克尔受体。