Studies of Acenaphthene Derivatives. XVI. The Wittig Reaction with Acenaphthenequinone
作者:Otohiko Tsuge、Masashi Tashiro、Ichiro Shinkai
DOI:10.1246/bcsj.42.181
日期:1969.1
The reactions of acenaphthenequinone (III) with several Wittig reagents have been studied. When III was reacted with equimolar amounts of benzylidenetriphenylphosphoranes (IV) at room temperature, the corresponding benzylideneacenaphthenones (V) were obtained in fairly good yields, but the reactions of benzil and phenanthrenequinone with IV did not take place under similar conditions. The reaction of
已经研究了苊醌 (III) 与几种 Wittig 试剂的反应。当 III 与等摩尔量的亚苄基三苯基膦 (IV) 在室温下反应时,相应的亚苄基苊酮 (V) 以相当好的收率获得,但苄基和菲醌与 IV 的反应在类似条件下没有发生。III与2当量IV在苛刻条件下反应仅得到V,没有得到二亚苄基化合物。III 与共振稳定的正膦,如乙炔-、苯亚酰-和对氯苯亚酰正膦的反应,得到预期的 α,β-不饱和酮。在与乙氧基羰基亚甲基正膦反应中,生成两个立体异构的乙氧基羰基亚甲基苊酮,也由乙氧基羰基甲基膦酸二乙酯反应得到。异构体的结构是在核磁共振、紫外光谱和质谱研究的基础上确定的。
Studies of Acenaphthene Derivatives. XX. The Reactions of Benzylideneacenaphthenones with Sulfonium Ylides
作者:Otohiko Tsuge、Ichiro Shinkai
DOI:10.1246/bcsj.43.3514
日期:1970.11
The reactions of benzylideneacenaphthenones with sulfoniumylides were studied extensively. Although the reactions of benzylidene- and p-methylbenzylideneacenaphthenone with dimethylsulfonium methylide gave only resinous materials, the p-chlorobenzylidene derivative condensed with the ylide to afford the corresponding spiroxirane compound in a good yield. In the reactions with dimethyloxosulfonium