Direct observation of α-oxo ketenes formed from 1,3-dioxin-4-ones and the enols of β-keto esters

Freiermuth B. and Wentrup C. (1991) Direct observation of α-oxo ketenes formed from 1,3-dioxin-4-ones and the enols of β-keto esters. Journal of Organic Chemistry, 56 7: 2286-2289.

Author Freiermuth B.
Wentrup C.
Title Direct observation of α-oxo ketenes formed from 1,3-dioxin-4-ones and the enols of β-keto esters
Journal name Journal of Organic Chemistry   Check publisher's open access policy
ISSN 0022-3263
Publication date 1991-01-01
Sub-type Article (original research)
Volume 56
Issue 7
Start page 2286
End page 2289
Total pages 4
Subject 1605 Policy and Administration
Abstract The enol forms of β-keto esters thermolyze to alcohols and α-oxo ketenes, which are characterized by low-temperature IR spectroscopy and on warming regenerate the β-hydroxy-α,β-unsaturated esters. The matrix isolated s-Z and s-E forms of α-oxo ketenes are characterized and photochemically converted into other conformers or sites. Matrix photolysis of 2,2,6-trimethyl-1,3-dioxin-4-one gives the s-Z acetylketene initially. α-Oxo ketenes polymerize in the cold and dimerize only at elevated temperatures.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Tue, 12 Jul 2016, 13:56:47 EST by System User