Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
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Trialkylamine-Mediated Intramolecular Acylation of Akenes with Carboxylic Acid Chlorides
Jun-ichi Matsuo, Takaya Hoshikawa, Shun Sasaki, Hiroyuki Ishibashi
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Keywords: intramolecular cyclization, carboxylic acid chloride, alkene, allyl ketene
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2010 Volume 58 Issue 4 Pages 591-592

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Abstract
Trialkylamine-mediated intramolecular cyclization of pent-4-enoyl chlorides was studied. Substitution with a tertiary alkyl group at the 2-position gave cyclopent-2-en-1-ones, while substitution with an aromatic group gave enol esters, which were formed by O-acylation of initially formed 3-chlorocyclopentanones with ketenes.
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© 2010 The Pharmaceutical Society of Japan
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