Chemisty on Isoindoles. Novel Synthesis of Various Functionalized Isoindoles from 2,3-Dicyanobenzaldehyde
作者:Ryu Sato、Hidenori Endoh、Akihito Abe、Shizuko Yamaichi、Takehiko Goto、Minoru Saito
DOI:10.1246/bcsj.63.1160
日期:1990.4
Various isoindoles having carbonyl, imino, cyano, formyl, and hydroxymethyl groups on the pyrrole or benzene ring were synthesized by new reactions of synthetically versatile 2,3-dicyanobenzaldehyde with a variety of nucleophiles. The obtained isoindoles were further converted to some functionalized isoindoles and phthalazine via recyclization with sodium borohydride and hydrazine. Whereas, N-(2,3
通过合成通用的 2,3-二氰基苯甲醛与各种亲核试剂的新反应,合成了在吡咯或苯环上具有羰基、亚氨基、氰基、甲酰基和羟甲基基团的各种异吲哚。通过与硼氢化钠和肼的再循环,将获得的异吲哚进一步转化为一些官能化的异吲哚和酞嗪。而 N-(2,3-二氰基苯亚甲基)苯胺是将 2,3-二氰基苯甲醛与苯胺衍生物在液氨或二乙胺中与元素硫反应得到 7-氰基-2,3-二氢-3-(4-取代的苯基亚氨基)-1H-isoindole-1-thiones,在相的存在下通过烷基卤化物将其转化为 3-烷硫基-4-氰基-N-(4-取代苯基)-1H-isoindol-1-亚胺-转移催化剂。