Bidentate phosphite and nickel catalyst compositions for...

Details Bidentate phosphite and nickel catalyst compositions for... Bidentate phosphite and nickel catalyst compositions for...

C - Chemistry, Metallurgy

07

F

C07F 15/04 (2006.01) B01J 31/18 (2006.01) C07C 253/10 (2006.01) C07C 255/04 (2006.01) C07C 255/03 (2006.01)

Patent

CA 2186351

Processes for hydrocyanation of nonconjugated aliphatic monoolefins or monoolefins conjugated to an ester group utilizing a catalyst precursor composition comprising an unsymmetrical bidentate phosphite ligand and zero-valent nickel, preferably in the presence of a Lewis acid promoter, to produce a terminal organo-nitrile. Catalyst precursor compositions are also disclosed.

L'invention concerne des procédés d'hydrocyanation de mono-oléfines aliphatiques non-conjuguées ou de mono-oléfines conjuguées avec un groupe ester. On utilise dans ces procédés une composition de précurseur de catalyseur comprenant un ligand asymétrique au phosphite bidenté et du nickel de valence zéro, de préférence en présence d'un acide de Lewis servant de promoteur, pour produire un composé organique portant un groupe nitrile terminal. On décrit également des compositions de précurseurs de catalyseur.

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