Nucleophilic Dearomatization of 3-nitrobenzofurans by the Action of 2-(1-arylethylidene)Malononitriles
作者:Dmitry V. Osipov、Darya А. Rashchepkina、Alina А. Аrtemenko、Oleg P. Demidov、Vitaly А. Osyanin
DOI:10.1007/s10593-021-03013-2
日期:2021.10
When 2-(1-arylethylidene)malononitriles act upon 3-nitrobenzofurans in the presence of triethylamine, the furan ring opens and triethylammonium 2-aryl-1,1-dicyano-5-nitropenta-2,4-dien-1-ides are formed. The obtained salts containing the chromophoric 1,1-dicyanopentadienide fragment are of interest as anionic polymethine dyes.
当 2-(1-芳基亚乙基)丙二腈在三乙胺存在下作用于 3-硝基苯并呋喃时,呋喃环打开,三乙基铵 2-芳基-1,1-二氰基-5-硝基五-2,4-二烯-1-ide形成。所获得的含有发色 1,1-二氰基戊二烯化物片段的盐作为阴离子聚次甲基染料是令人感兴趣的。