Group VIII metal phosphine complexes-catalyzed addition of disilanes to allenic compoundsFormation of new organosilicon compounds containing both vinylsilane and allylsilane units
作者:H WATANABE、M SAITO、N SUTOU、K KISHIMOTO、J INOSE、Y NAGAI
DOI:10.1016/s0022-328x(00)86834-5
日期:1982.2.1
catalyst gave regioselectively new functionalized organosilicon compounds, 2, 3-bis(organosilyl)prop-1-enes and 2, 3-bis(organosilyl)but-1-enes, respectively. Other group VIII metal-phospine complexes also affected the reaction, but results were found to be less satisfactory. Also, the reaction of any unsymmetrical disilane with an allenic compound gave only a single product; e.g., the addition of
将氯甲基-和甲氧基甲基乙硅烷X 3 - m Me m SiSiMe n -X 3 - n(X-Cl和OMe; m,n -0-2)以及六甲基乙硅烷添加到丙二烯和1,2-丁二烯中Pd(PPh 3)4的存在催化剂分别产生区域选择性的新型官能化有机硅化合物,2,3-双(有机甲硅烷基)丙-1-烯和2,3-双(有机甲硅烷基)丁-1-烯。其他族金属-膦配合物也影响了反应,但结果却不令人满意。同样,任何不对称的乙硅烷与烯丙基化合物的反应只能得到单一产物。例如,在Pd(PPh 3)4存在下向1,2-丁二烯中添加氯五甲基二硅烷,得到CH 2 -C(SiMe 3)CH(SiMe 2 Cl)Me,产率为93%。