摘要:
A titanium catalyst for reaction between a carbon-carbon unsaturated bond and a compound having an electrophilic functional group or an electrophilic reagent, said titanium catalyst being composed of a titanium compound represented by the formula (1) below TiX X X X (where X , X , X , and X denote independently a halogen atom, C1-20 alkoxyl group, aralkyloxy group, aryloxy group, or -NRxRy group (where Rx and Ry denote independently a C1-20 alkyl group or aralkyl group), and any two of X , X , X , and X may form a ring.) and a Grignard reagent represented by the formula (2) below in a molar amount 1.5-2.5 times as much as the titanium compound. R MgX (where R denotes a C2-10 alkyl group having a hydrogen atom at the beta position and X denotes a halogen atom.) The titanium catalyst of the present invention activates the carbon-carbon unsaturated bond, which has a comparatively low reactivity, thereby catalyzing the reaction with an electrophilic functional group. It is inexpensive and industrially advantageous. When applied to reaction between a carbon-carbon unsaturated bond and an electrophilic functional group, it yields industrially a variety of adducts of a compound having a carbon-carbon unsaturated bond and a compound having an electrophilic functional group, and it also yields a variety of intramolecular adducts of a compound having a carbon-carbon unsaturated bond and an electrophilic functional group in the same molecule.
摘要翻译:一种用于在碳 - 碳不饱和键和具有亲电官能团的化合物或亲电试剂之间进行反应的钛催化剂,所述钛催化剂由TiX 1 X 2以下的式(1)表示的钛化合物组成, X 3 X 4(其中X 1,X 2,X 3和X 4独立地表示卤素原子,C 1-20烷氧基,芳烷氧基,芳氧基或 - NR x R y基团(其中R x和R y独立地表示C 1-20烷基或芳烷基),并且X 1,X 2,X 3和X 4中的任意两个可以形成环。 和由下式(2)表示的格氏试剂,摩尔量为钛化合物的1.5-2.5倍。 R 1 MgX 5(其中R 1表示在β位具有氢原子的C 2-10烷基,X 5表示卤素原子。)本发明的钛催化剂活化碳 - 碳不饱和键,其具有相对低的反应性,从而催化与亲电官能团的反应。 廉价且工业上有利。 当应用于碳 - 碳不饱和键和亲电官能团之间的反应时,它在工业上产生具有碳 - 碳不饱和键的化合物和具有亲电官能团的化合物的各种加合物,并且还产生各种 在同一分子中具有碳 - 碳不饱和键和亲电官能团的化合物的分子内加合物。