Helvetica Chimica Acta p. 2244 - 2248 (1985)
Update date:2022-08-25
Topics:
Kohl-Mines, Elisabeth
Hansen, Hans-Juergen
It is shown that carboxylic acids, in the presence of Bu3N and 2-chloro-1-methylpyridinium iodide in toluene or CH2Cl2, react with <(alkoxycarbonyl)methylidene>phosphoranes to yield the corresponding esters of allene carboxylic acids (cf.Scheme
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