Abstract
Treatment of β-enamino esters with terminal allenes in the presence of a catalytic amount of a rhenium complex, [ReBr(CO) 3 (thf)] 2 , gave α-alkenylated β-imino or β-enamino esters. In this reaction, a new carbon―carbon bond is formed between the active methylene moiety of the β-enamino esters and the β-carbon of the terminal allenes.
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