Yields obtained from Wittig reactions with cyclopropylidenetriphenylphosphorane are greatly improved by addition of the phase-transfer catalyst, TDA-1.

中文翻译：

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一种制备亚烷基环丙烷的有效方法

通过加入相转移催化剂TDA-1，可以大大提高Wittig与环丙基亚甲基三苯基膦的反应所获得的收率。