✦ LIBER ✦

Rhodium(II) acetate-catalyzed reaction of ethyl 2-diazo-3-oxopent-4-enoates: Simple routes to 4-aryl-2-hydroxy-1-naphthoates and β,β-unsaturated esters. The dianion of ethyl 4-(diethylphosphono)acetoacetate as a propionate homoenolate equivalent

✍ Scribed by Edward C. Taylor; Huw M.L. Davies

Publisher: Elsevier Science
Year: 1983
Tongue: French
Weight: 170 KB
Volume: 24
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)94110-8

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✦ Synopsis

Rhodium(I1) acetate-catalyzed decomposition of ethyl 2-diazo-3oxopent-4-enoates results in the formation of either 4-aryl-2-hydroxynaphthoates or 6,y-unsaturated esters. In the latter transformation, the dianion of 4-(diethylphosphono)acetoacetate functions as a propionate homoenolate equivalent.