Palladium-Catalyzed Enantioselective [4+2] Cycloaddition of 4-Vinylbenzodioxinones with Barbiturate-Derived Alkenes: Con-struction of Chiral Spirobarbiturate-Chromanes
文献类型： 外文期刊
作者： Tang, Yi;Huang, Mingxia;Ding, Siyuan;Liu, Xinyao;Huyang, Xiaochun;Wang, Bo;Guo, Hongchao
作者机构：
关键词： Palladium catalysis;asymmetric catalysis;cycloaddition;cyclic carbonate;alkene
期刊名称： CHEMISTRY-A EUROPEAN JOURNAL
ISSN： 0947-6539
年卷期： 2024 年
页码：
收录情况： SCIE（2024版） ; ; EI（2024版）
摘要： In this paper, Pd-catalyzed [4+2] decarboxylative cycloaddition of 4-vinylbenzodioxinones with barbiturate-derived alkenes has been developed, leading to various spirobarbiturate-chromane derivatives in high yields with excellent diastereo- and enantioselectivities. The scale-up reaction and further derivation of the product were demonstrated. A plausible reaction mechanism was also proposed. A palladium-catalyzed [4+2] decarboxylative cycloaddition of 4-vinybenzodioxinones with barbiturate-derived alkenes has been developed, providing the corresponding spirobarbiturate-chromane derivatives in generally high yields with excellent diastereo- and enantioselectivities. image
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