Production for substituted acetylenic compounds

Details Production for substituted acetylenic compounds Production for substituted acetylenic compounds

C - Chemistry, Metallurgy

07

C

260/697, 260/519

C07C 11/22 (2006.01) C07B 37/04 (2006.01) C07C 41/30 (2006.01) C07C 57/18 (2006.01) C07D 309/12 (2006.01)

Patent

CA 1297484

ABSTRACT A method of producing substituted acetylenic compounds which comprises: reacting an organic compound having the general formula of A-X (I) wherein A represents a saturated or unsaturated aliphatic hydrocarbon residue of 1-20 carbon atoms which may have one or more substituents inactive in the reaction, and X represents a halogen atom or an arylsulfonyloxy group, with a metal acetylide having the general formula of M-C ? C-B (II) wherein M rapresents an alkali metal, and B represents (a) a hydrogen, (b) a saturated or unsaturated hydrocarbon residue which may have one or more substituents inactive in the reaction, or (c) a saturated or unsaturated hydrocarbon residue which has a susbstituent having the general formula of -C ? C-M (III) wherein M represents an alkali metal, in the presence of an alkyl-2-imidazolidinone having the general formula of (IV) Image wherein R1 and R2 independently represent a lower alkyl, and R3 represents a hydrogen or a lower alkyl.

561037

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