期刊
ORGANIC LETTERS
卷 22, 期 20, 页码 8023-8027出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.0c02978
关键词
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资金
- National Natural Science Foundation of China (NSFC) [U1804283]
- Central Plains Scholars and Scientists Studio Fund [2018002]
- 111 Project [D17007]
- Henan Normal University [qd 18005, 2020PL20]
(S)-2,15-Cl-2-DHTP-boron complex catalyst for the asymmetric Diels-Alder cycloaddition of 2'-hydroxychalcones and dienes was developed and tested. The resulting cyclohexenes with three chiral centers were obtained in high yields (up to 98%) with excellent stereoselectivities (up to >20:1 endo/exo, >99% ee). This catalytic system features high efficiency, broad substrate scopes, and mild reaction conditions. In addition, a DFT study was performed to explain the stereochemical course of the asymmetric induction.
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