A novel and efficient method for the synthesis of O-allenes and N-allenes via isomerization of terminal alkynes catalyzed by cesium hydroxide monohydrate is described. The advantages of this method include: mild reaction conditions, high yields and wide tolerance toward functional groups. The protocol provides an efficient route to O-allenes and N-allenes, which are important intermediates in organic synthetic chemistry.

中文翻译：

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氢氧化铯催化的末端炔烃异构化反应，用于合成O-丙二烯和N-丙二烯

描述了一种通过氢氧化铯一水合物催化的末端炔烃的异构化来合成O-丙烯和N-丙烯的新颖有效的方法。该方法的优点包括：温和的反应条件，高收率和对官能团的广泛耐受性。该协议为有机合成化学中重要的中间体O-丙二烯和N-丙二烯提供了一条有效途径。