Asymmetric intramolecular oxa-Michael addition of activated α,β-unsaturated ketones by chiral N-triflyl phosphoramide
Asymmetric intramolecular oxa-Michael addition of activated α,β-unsaturated ketones by chiral N-triflyl phosphoramide作者机构：State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
出 版 物：《Chinese Science Bulletin》 (Chinese Science Bulletin)
年 卷 期：2010年第55卷第17期
页 面：1723-1725页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
基 金：supported by the National Natural Science Foundation of China (20732006 and 20821002)
主 题：迈克尔 分子氧 不对称 不饱和 黄酮 活性 手性 膦
摘 要：Asymmetric intramolecular oxa-Michael addition of activated α,β-unsaturated ketones by chiral N-triflyl phosphoramide was realized. The flavanone products can be synthesized with excellent yields (50%–95%) and up to 74% ee.
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