申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0393790A2
公开(公告)日:1990-10-24
Copolymers of carbon monoxide with one or more mono-olefins having at least three carbon atoms in the molecule are prepared by copolymerization of the monomers in the presence of a catalyst composition based upon
a) a palladium compound,
b) an anion of an acid having a pKa < 2, and
c) a bisphosphine of formula (R²)₂P-R-P(R²)₂, where R is a bivalent bridging group having at least two C-atoms in the bridge, and R² is an optionally polar-substituted aliphatic hydrocarbyl group,
and in the additional presence of a compound of formula C(X)(Y)(OR³)₂ wherein X = H or hydrocarbyl, Y = H, hydrocarbyl or OR³, and R³ = hydrocarbyl.
一氧化碳与一种或多种分子中至少有三个碳原子的单烯烃的共聚物,是通过单体在催化剂组合物的存在下共聚制备的,催化剂组合物的基础是
a) 钯化合物
b) pKa < 2 的酸阴离子,和
c) 式 (R²)₂P-R-P(R²)₂ 的双膦,其中 R 是桥中至少有两个 C 原子的二价桥基,R² 是任选极性取代的脂肪族烃基、
和式 C(X)(Y)(OR³)₂的化合物,其中 X = H 或烃基;Y = H、烃基或 OR³;和 R³ = 烃基。