Transallenation of 1,3‐Bis(dialkylamino)‐1,3‐diethoxyallenes with Disubstituted Malonyl Chlorides

Abstract

A general synthetic route to 1,1-allenedicarboxamides 3 is transallenation. For this purpose 1,3-bis (dialkylamino) allenes (synthetic equivalents of malonamide dianions 1) are allowed to react with disubstituted malonyl chlorides (synthetic equivalents of 1,1-vinylidene dications 2); R1NR2.