1-Chloro-1,3-bis(dimethylamino)-2-azapropenylium salts: intermediates for the synthesis of 1,3,5-triazines, pyrimidines, isoquinolines, quinazolines, and a 1,3,5-thiadiazinium salt
作者:Gerhard V. Boyd、Peter F. Lindley、George A. Nicolaou
DOI:10.1039/c39840001105
日期:——
The title salts, which are formed by the action of dimethylcyanamide on the phosphorus oxychloride complexes of a variety of tertiary amides, are useful precursors of six-membered heteroaromatic compounds: they react with simple amidines to yield 1,3,5-triazines and with N,N-dimethylamidines to give pyrimidines; 3-arylmethyl-1-chloro-1,3-bis(dimethylamino)-2-azapropenylium perchlorates form isoquinolines
标题盐是由二甲基氰胺作用于多种叔酰胺的氯氧化磷络合物上形成的,是六元杂芳族化合物的有用前体:它们与简单的am反应生成1,3,5-三嗪,并与N,N-二甲基am产生嘧啶;3-芳基甲基-1-氯-1,3-双(二甲基氨基)-2-氮杂丙烯鎓高氯酸盐形成异喹啉,相关的3-芳基氨基-1-氯-1-二甲基氨基-2-氮杂丙烯鎓盐环化成喹唑啉鎓盐,并处理1-氯-1,3-双(二甲基氨基)-3-苯基-2-氮杂丙烯基高氯酸盐与硫氰酸钾导致重排的1,3,5-噻二嗪盐。