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.
Thione<i>S</i>-Imide. Reaction with Heterocumulenes
作者:Takao Saito、Isao Oikawa、Shinichi Motoki
DOI:10.1246/bcsj.53.2582
日期:1980.9
S-p-toluenesulfonimide reacted with diphenylketene to give two regioisomeric 1,3-dipolar cycloadducts. The thione S-imide and symmetrical dialkylcarbodiimides produced 3-tosylimino-1,2,4-thiadiazolidines. In the reaction with ketenimines, there occurred siteselective cycloadditionreactions on C=N vs. C=C bonds in the imines and further rearrangement of the 1,2,4-thiadiazolidine adducts.
S-(9-Fluorenylidene)-N-(p-tolylsulfonyl)sulfimide and bis(p-tolylsulfonyl)sulfur diimide reacted as 1,3-dipoles with fulvenes to form (2+3)cycloadducts.