抽象的 ( E )-2-芳基-1-氰基-1-硝基乙烯和二氮杂芴之间的反应产生无环2,3-二氮杂丁-1,3-二烯衍生物,而不是预期的吡唑啉体系。 DFT 计算表明这是反应第一阶段形成两性离子结构的结果。必须指出的是,与大多数其他共轭硝基烯烃相比,这是 ( E )-2-芳基-1-氰基-1-硝基乙烯基团的特定性质。 图形概要
Thione<i>S</i>-Imides. The Reaction with Carbon-Hetero Atom Double Bond
作者:Takao Saito、Isao Oikawa、Shinichi Motoki
DOI:10.1246/bcsj.53.1023
日期:1980.4
9-Fluorenethione S-p-toluenesulfonimide reacted as a 1,3-dipole with imines, oximes, and thiones to form (3+2)cycloadducts, while with symmetrical azines and aldehydes, unsymmetrical azines, N-(p-tolylsulfonyl) imines and fluorenone were obtained as a result of the decomposition of the cycloadducts.