Bis(acetylacetonato)Ni(II)/NaBHEt3-catalyzed hydrosilylation of 1,3-dienes, alkenes and alkynes
作者:Venu Srinivas、Yumiko Nakajima、Wataru Ando、Kazuhiko Sato、Shigeru Shimada
DOI:10.1016/j.jorganchem.2016.02.025
日期:2016.5
5-heptanedionato)nickel(II) (1c) as versatile hydrosilylation catalyst precursors is described. Complexes 1a-c catalyze 1,4-selective hydrosilylation of 1,3-dienes in the presence of NaBHEt3 at ambient temperature. The reactions exhibit good regioselectivity to give the branched isomers as major products. The catalytic system also catalyzes hydrosilylation of alkenes including industriary important siloxy-
市售Ni(II)盐,Ni(acac)2(acac =乙酰丙酮乙酰)(1a)及其衍生物双(六氟乙酰丙酮乙酰)镍(II)(1b)和双(2,2,6,6-四甲基描述了作为通用氢化硅烷化催化剂前体的-3,5-庚二酮基)镍(II)(1c)。配合物1a - c在NaBHEt 3存在下催化1,3-二烯的1,4-选择性氢化硅烷化在环境温度下。该反应表现出良好的区域选择性,从而得到支链异构体作为主要产物。该催化体系还催化烯烃的氢化硅烷化,包括工业上重要的甲硅烷氧基,氨基和环氧取代的烯烃以及末端和内部炔烃。