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Indexed by:期刊论文
Date of Publication:2016-12-01
Journal:ADVANCED SYNTHESIS & CATALYSIS
Included Journals:SCIE、Scopus
Volume:358
Issue:24
Page Number:3971-3976
ISSN No.:1615-4150
Key Words:asymmetric catalysis; Cinchona alkaloids; hydroxylation; pyrazolones
Abstract:A natural quinine-catalyzed, efficient and practical asymmetric -hydroxylation of 4-substituted pyrazolones has been developed, delivering a broad spectrum of pyrazolones bearing an oxygen-attached carbon stereocenter at C-4 in high yields and excellent enantioselectivities. The broad substrate scope, ready availability of the catalyst, ease of operation, and valuable transformation of the product highlight the practical utility of this process.
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