Process for the manufacture of butenolide derivatives

Details Process for the manufacture of butenolide derivatives Process for the manufacture of butenolide derivatives

C - Chemistry, Metallurgy

07

D

260/359.3, 260/3

C07D 307/60 (2006.01) C07D 307/58 (2006.01) C07D 407/12 (2006.01) C07D 493/02 (2006.01) C07D 493/04 (2006.01)

Patent

CA 1104145

ABSTRACT OF THE DISCLOSURE An improved chemical process for the manufacture of a compound of the formula IV: Image IV by reacting an alkali metal salt of the formula V: Image V with 5-chloro-but-2-enolide or 5-chloro-3-methylbut-2-enolide.

286399

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