Synthesis of Multisubstituted Allenes by Palladium-Catalyzed Carboetherification of β,γ-Unsaturated Ketoximes with Propargylic Acetates
作者:Shuaijie Wu、Shuting Zhang、Jing Sun、Ying Han、Yidong Wang、Chao-Guo Yan、Lei Wang
DOI:10.1021/acs.orglett.3c01561
日期:2023.6.30
A highly efficient Pd-catalyzed carboetherification reaction of β,γ-unsaturated ketoximes with propargylic acetates is demonstrated. This method provides a practical protocol for accessing the incorporation of an allene moiety into 3,5-disubstituted and 3,5,5-trisubstituted isoxazolines. The salient features of this transformation include a broad substrate scope, good functional group tolerance, an
证明了 β,γ-不饱和酮肟与乙酸炔丙酯的高效 Pd 催化碳醚化反应。该方法提供了将丙二烯部分掺入 3,5-二取代和 3,5,5-三取代异恶唑啉中的实用方案。该转化的显着特点包括底物范围广、官能团耐受性好、易于放大、转化形式多样以及可用于药物的后期修饰。