Phenacylpyridinium ylide (2) reacted with tropone (1) to afford 2-hydroxy-2-phenyl-3-phenacyl-2H-cyclohepta[b]furan (3) which was converted into 2-(1′,2′-dibenzoylethyl)tropone (4). The reactions of tropone with several kinds of pyridinium bromides (7) yielded 2-substituted tropones in the presence of amine, and 1-azaazulene derivatives (9, 10, 11) in a one-step formation in the presence of ammonium acetate.
苯乙酰
吡啶亚胺(2)与
环戊烯(1)反应生成2-羟基-2-苯基-3-苯乙酰-2H-环庚[b]
呋喃(3),该化合物进一步转化为2-(1′,2′-二苯酰乙基)
环戊烯(4)。
环戊烯与几种
吡啶溴化物(7)的反应在胺的存在下产生2-取代的
环戊烯,而在
醋酸铵的存在下则一步反应生成1-氮杂蓝烯衍
生物(9, 10, 11)。