Isomerisation of prop-2-ynylic esters into 1,2- and 1,3-dienyl esters
作者:Richard C. Cookson、Michael C. Cramp、Philip J. Parsons
DOI:10.1039/c39800000197
日期:——
While the prop-2-ynyl acetates (1) rearrange to the allenyl acetates (2) in boiling benzene containing copper(I) chloride, in the presence of silver trifluoroacetate the butadienyl acetates (3), useful in Diels–Alder reactions, are formed in high yield.