作者:YOSHIHISA OKAMOTO、YOSHIHISA KURASAWA、KANAME TAKAGI、ATSUSHI TAKADA、TAKEO UEDA
DOI:10.1248/cpb.22.243
日期:——
A nucleophilic reaction of 2-aminopyridines (or 2-aminoheterocycles) with ethoxymethylenemalononitrile was investigated and structures of the reaction products were assigned as shown in Table II. Similar reactions using 2-aminopyridine hydrochloride were found to give 1, 2-dihydro-1- (2, 2-dicyanovinyl) -2-iminopyridine (IV), and 1, 2-dihydro-1- (2, 2-dicyanovinyl) -2- (2, 2-dicyanovinylimino) pyridine (VIa).
研究了 2-氨基吡啶(或 2-氨基杂环)与乙氧基亚甲基丙二腈的亲核反应,反应产物的结构如表 II 所示。发现使用 2-氨基吡啶盐酸盐进行类似反应可得到 1,2-二氢-1-(2,2-二氰基乙烯基)-2-亚氨基吡啶(IV)和 1,2-二氢-1-(2,2-二氰基乙烯基)-2-(2,2-二氰基乙烯基亚氨基)吡啶(VIa)。