Photocatalytic radical cyclization of α-halo hydrazones with β-ketocarbonyls: facile access to substituted dihydropyrazoles

A mild and efficient method for the photocatalytic radical cyclization of α-halo hydrazones with β-ketocarbonyls has been described. This strategy provides a potential protocol for the construction of functionalized 4,5-dihydropyrazoles in moderate to high yields.

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2017-05, Vol.53 (38), p.5342-5345
Main Authors: Yu, Jing-Miao, Lu, Guo-Ping, Cai, Chun
Format: Article
Language:English
Subjects:
Hydrazones
Photocatalysis
Radicals
Strategy
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Description
Summary:A mild and efficient method for the photocatalytic radical cyclization of α-halo hydrazones with β-ketocarbonyls has been described. This strategy provides a potential protocol for the construction of functionalized 4,5-dihydropyrazoles in moderate to high yields.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc01470h