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Simple stereoselective synthesis of (1E,3Z)-4-(substituted)amino 1,3-diethoxycarbonyl-1,3-butadienes

✍ Scribed by M. Akram Khan; Harry Adams

Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 121 KB
Volume: 40
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(99)01012-6

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✦ Synopsis

Ethyl propynoate reacted with esters of amino acids in methanolic solutions containing sodium acetate to yield the title compounds la-d in 40-52% yields. Some aromatic amines similarly reacted with ethyl propynoate to yield the dienes 3a-h in relatively poor yields (17-45%).

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