申请人:International Flavors & Fragrances Inc.
公开号:EP3222610A1
公开(公告)日:2017-09-27
A method for the selective synthesis of a tail-to-head, or a head-to-head, or a tail-to-tail telomer from an unsymmetrical diene by polymerizing the diene in the presence of [Pd(C3H5)COD]BF4 and dicyclohexyl-[1-(2,4,6-trimethylphenyl)imidazol-2-yl]phosphane, Pd(OAc)2 and triphenylphosphine, or [Pd(C3H5)COD]BF4 and tris(2,4-di-tert-butylphenyl)phosphite in combination with a polar protic alcohol, an acidic polar protic alcohol, a polar aprotic ether, or a non-polar aprotic hydrocarbon is provided.
一种在[Pd(C3H5)COD]BF4 和二环己基-[1-(2,4,6-三甲基苯基)咪唑-2-基]膦存在下聚合非对称二烯,从而从该二烯选择性合成尾对头或头对头或尾对尾端聚体的方法、Pd(OAc)2和三苯基膦,或[Pd(C3H5)COD]BF4和三(2,4-二叔丁基苯基)亚磷酸酯与极性原醇、酸性极性原醇、极性烷基醚或非极性烷基烃的组合。