期刊
ORGANIC LETTERS
卷 21, 期 18, 页码 7337-7341出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b02629
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资金
- Guangzhou University of Chinese Medicine
- Pearl River Talents Recruitment Program of Guangdong Province [2017GC010361]
- Department of Education of Guangdong Province [2016KCXTD015]
Reported herein is an inverse-electron-demand oxa-Diels-Alder reaction that is remotely beta,gamma-regioselective with beta,gamma-unsaturated amides and beta,gamma-unsaturated-alpha-ketoesters using a bifunctional catalyst. It can provide different kinds of dihydropyrans bearing three subsequent chiral carbon centers in good to high yield (61-99%) and with complete enantioselectivity (99 to >99% ee). Furthermore, a larger-scale experiment confirmed the reliability of the current reaction, and further effective transformation of the product has been realized.
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