We report an intramolecular addition reaction of vinyllithium to phosphine oxides for the efficient synthesis of 2,3-dihydro-1H-phosphindole-1-oxides. Control experiments indicated that the reaction might proceed through an addition and concerted aryl migration process. The relative migration rate of aryl rings with different electronic properties was also briefly investigated.

中文翻译：

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的合成2,3-二氢-1- ħ -phosphindole -1-氧化物经由所述吨乙烯基溴化物和氧化膦的正丁基锂-介导的重排

我们报告了分子内的乙烯基锂向氧化膦的有效合成2,3-二氢-1 H-磷酸吲哚-1-氧化物的加成反应。对照实验表明，该反应可能通过加成和一致的芳基迁移过程进行。还简要研究了具有不同电子性质的芳基环的相对迁移速率。