期刊
ORGANIC LETTERS
卷 21, 期 19, 页码 7897-7901出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b02892
关键词
-
资金
- NSFC [21702199]
- Anhui Provincial Natural Science Foundation [1808085QB30]
Highly enantioselective [4 + 2] cyclizations of azadienes with in situ generated ketenes were developed through sequential visible-light photoactivation/isothiourea catalysis, which offers a novel approach for the creation of all-carbon quaternary stereocenters through disubstituted C1-ammonium enolates. The visible-light-induced sustained release of reactive ketene species through Wolff rearrangement of alpha-diazoketones is crucial for achieving high levels of chemical efficiency and stereoinduction.
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