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ChemInform Abstract: Thermal Decomposition of Pentacarbonyl(1-acyloxyalkylidene)chromium(0) Complexes: Formation of Z-Enol Esters.

✍ Scribed by B. C. SOEDERBERG; J. LIU; T. W. BALL; M. J. TURBEVILLE

Publisher: John Wiley and Sons
Year: 2010
Weight: 38 KB
Volume: 29
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199803065

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✦ Synopsis

Thermal

Decomposition of Pentacarbonyl(1acyloxyalkylidene)chromium(0) Complexes: Formation of Z-Enol Esters.

-A novel synthesis of enol esters in moderate to good yields by reaction of pentacarbonyl Cr(0) complexes (formed in situ from NMe + 4 chromate salts) with carboxylic acid halides is presented. The Z-enol ester is obtained as the major or exclusive isomer. The addition of 1 equiv. Py improves the Z/E ratio and, in most cases, increases the yields. -(SOEDERBERG, B.

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