Document Detail

Synthesis of enantiopure trifluoromethyl building blocks via a highly chemo- and diastereoselective nucleophilic trifluoromethylation of tartaric acid-derived diketones.
MedLine Citation:
PMID:  17243715     Owner:  NLM     Status:  PubMed-not-MEDLINE    
A highly diastereoselective nucleophilic mono(trifluoromethylation) of a tartaric acid-based diketone, using trifluoromethyl(trimethyl)silane, afforded the corresponding gamma-keto trifluoromethylcarbinol. The scope and limitation of this reaction was studied. The acidic removal of the acetonide moiety protecting the two hydroxyl groups of the adducts was unsuccessful. Bis(O-methylation) of the aromatic derivatives under basic conditions, followed by acidic hydrolysis and oxidative cleavage, led to two different enantiopure products: an alpha-aryl-alpha-methoxy-alpha-trifluoromethyl ethanal and an alpha-aryl-alpha-methoxycarboxylic acid. The overall process is eventually an interesting way to convert one natural chiral raw material into two functionalized enantiopure building blocks including a trifluoromethyl one.
Fabien Massicot; Nicolas Monnier-Benoit; Naba Deka; Richard Plantier-Royon; Charles Portella
Related Documents :
9842725 - Oligosaccharides generated by partial hydrolysis of the borate-rhamnogalacturonan ii co...
18058895 - Enantio- and diastereoselective syntheses of cyclic calpha-tetrasubstituted alpha-amino...
2919585 - The biotransformed metabolite profiles in blood after intravenous administration of deh...
8195125 - Mechanism of gm3 ganglioside synthesis. kinetic study of rat liver cmp-n-neuraminate:la...
22026185 - Built-in 5-aminooxazole as an internal activator of the terminal carboxylic acid: an al...
8683335 - Ribonucleic acid nucleotides in maternal and fetal tissues derive almost exclusively fr...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-01-23
Journal Detail:
Title:  The Journal of organic chemistry     Volume:  72     ISSN:  0022-3263     ISO Abbreviation:  J. Org. Chem.     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-02-09     Completed Date:  2007-04-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985193R     Medline TA:  J Org Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1174-80     Citation Subset:  -    
Laboratoire Réactions Sélectives et Applications, UMR 6519 CNRS-Université de Reims Champagne-Ardenne, Faculté des Sciences, B.P. 1039, 51687 Reims Cedex 2, France.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

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

Previous Document:  Highly emissive pi-conjugated alkynylpyrene oligomers: their synthesis and photophysical properties.
Next Document:  Stereoselective synthesis of polyhydroxylated quinolizidines from C-glycosides by one-pot double-con...