Document Detail


Enantioselective Synthesis of β-Pyrazole-Substituted Alcohols through an Asymmetric Ring-Opening Reaction of meso-Epoxides.
MedLine Citation:
PMID:  22362613     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
An efficient and practical synthesis of optically pure β-pyrazole-substituted alcohols was achieved from an asymmetric ring-opening reaction of meso-epoxides with pyrazole derivatives as the nucleophile. In the presence of 1 mol % of N,N'-dioxide-Sc(OTf)(3) complex, excellent enantioselectivity and yields were obtained from meso-epoxides. The process could also be used for the mixture of cis- and trans-stilbene oxides. A proposed transition-state model is provided.
Authors:
Xiaolei Hu; Bo Gao; Yangyang Chu; Wei Li; Xiaohua Liu; Lili Lin; Xiaoming Feng
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-23
Journal Detail:
Title:  Chemistry (Weinheim an der Bergstrasse, Germany)     Volume:  -     ISSN:  1521-3765     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9513783     Medline TA:  Chemistry     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064(China), Fax: (+86) 28-8541-8249.
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