The synthesis of 4-azulene-substituted 2,6-diphenyl- and 2,6-dimethyl-pyranylium salts and 2-azulenesubstituted 4,6-dimethyl-pyranylium salts by nucleophilic substitution at pyranylium moiety with various azulenes was studied. The starting materials for 2,6-diphenyl derivatives were 4 chlorinated pyranylium salts. They were obtained by the halogenation with PCl5 of corresponding pyranones and were
研究了通过
吡喃鎓部分上的a青烯的亲核取代合成4-氮杂烯取代的2,6
-二苯基-和2,6-二甲基-
吡喃鎓盐和2-氮杂烯取代的4,6-二甲基-
吡喃鎓盐。2,6-二苯基衍
生物的起始原料是4种
氯化
吡喃鎓盐。它们通过用相应的
吡喃酮的PCl 5卤化而获得,并且可以原位使用或分离后使用。为了合成二甲基衍
生物,将相应的
吡喃酮用POCl 3处理,并将所得的中间体原位反应与azulene。为了研究a和and平面之间的二面角对记录光谱的影响,两个部分均被适当取代。所得结果与计算值相符。