Document Detail


Tandem oxidation of allylic and benzylic alcohols to esters catalyzed by N-heterocyclic carbenes.
MedLine Citation:
PMID:  17217307     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
N-heterocyclic carbenes catalyze the oxidation of allylic, propargylic, and benzylic alcohols to esters with manganese(IV) oxide in excellent yields. A variety of ester derivatives can be synthesized, including protected carboxylates. This one-pot tandem oxidation represents the first organocatalytic oxidation of alcohols to esters. Saturated esters can also be accessed from aldehydes using this method. Through the utilization of a chiral catalyst, the acyl-heteroazolium intermediate becomes a chiral acylating agent, which can desymmetrize meso-1,2-diols. [reaction: see text].
Authors:
Brooks E Maki; Audrey Chan; Eric M Phillips; Karl A Scheidt
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Organic letters     Volume:  9     ISSN:  1523-7060     ISO Abbreviation:  Org. Lett.     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2007-01-12     Completed Date:  2007-03-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100890393     Medline TA:  Org Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  371-4     Citation Subset:  IM    
Affiliation:
Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA.
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MeSH Terms
Descriptor/Qualifier:
Allyl Compounds / chemistry*
Benzyl Alcohols / chemistry*
Catalysis
Esters / chemical synthesis*,  chemistry
Heterocyclic Compounds / chemistry*
Hydrocarbons / chemistry
Methane / analogs & derivatives*,  chemistry
Molecular Structure
Oxidation-Reduction
Stereoisomerism
Chemical
Reg. No./Substance:
0/Allyl Compounds; 0/Benzyl Alcohols; 0/Esters; 0/Heterocyclic Compounds; 0/Hydrocarbons; 2465-56-7/carbene; 74-82-8/Methane

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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