Abstract

The three-component reaction of triphenylphosphine, dialkyl acetylenedicarboxylate, and 2-arylideneindane-1,3-dione in dry DME at 0 °C to room temperature resulted in functionalized 4-(triphenyl-λ⁵-phosphanylidene)-1′,3′-dihydrospiro[cyclopentane-1,2′-inden]-2-enes in 65–87% yields. An unusual feature of the reaction is the retention of the triphenylphosphanylidene group in the spiro product.

The three-component reaction of triphenylphosphine, dialkyl acetylenedicarboxylate, and 2-arylideneindane-1,3-dione in dry DME at 0 °C to room temperature resulted in functionalized 4-(triphenyl-λ⁵-phosphanylidene)-1′,3′-dihydrospiro[cyclopentane-1,2′-inden]-2-enes in 65–87% yields. An unusual feature of the reaction is the retention of the triphenylphosphanylidene group in the spiro product.

中文翻译：

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通过三组分反应方便地合成三苯基膦亚基1'，3'-二氢螺[环戊烷-1,2'-茚满] -2-烯

摘要

在无水DME在0℃至室温的三苯基膦，二烷基乙炔，和2- arylideneindane -1,3-二酮的三组分反应导致官能4-（三苯基-λ ⁵ -phosphanylidene）-1'，3' -二氢螺并[环戊烷-1,2'-茚满] -2-烯的产率为65-87％。该反应的一个不寻常的特征是三苯基膦亚基在螺环产物中的保留。

在无水DME在0℃至室温的三苯基膦，二烷基乙炔，和2- arylideneindane -1,3-二酮的三组分反应导致官能4-（三苯基-λ ⁵ -phosphanylidene）-1'，3' -二氢螺并[环戊烷-1,2'-茚满] -2-烯的产率为65-87％。该反应的一个不寻常的特征是三苯基膦亚基在螺环产物中的保留。