期刊
CHEMICAL SCIENCE
卷 9, 期 20, 页码 4562-4568出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8sc01219a
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资金
- National Natural Science Foundation of China [21572184, 21472154]
- Natural Science Foundation of Fujian Province of China [2017J06006]
- Fundamental Research Funds for the Central Universities [20720160027]
The enantioselective photoredox reaction of a, b-unsaturated carbonyl compounds and tertiary/secondary a-silylamines was enabled by a readily available single NiII-DBFOX catalyst (DBFOX 1/4 4,6-bis((R)-4-phenyl4,5- dihydrooxazol-2-yl)dibenzo[b, d]furan) under visible light conditions. The non-precious chiral catalyst is involved in the photochemical process to initiate single electron transfer and at the same time provides a well-organized chiral environment for the subsequent radical transformations. Good to excellent enantioselectivities (80-99% ee) were obtained for the formation of chiral g-amino carboxylic acid derivatives and g-lactams.
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