Mononuclear Pt(II) and Pd(II) 1,4-dithiolato complexes. Crystal structures of [Pt((−) DIOS) (PPh3)2] and [Pd(S(CH2) 4S)(Ph2P(CH2) 3PPh2)]. Application in styrene hydroformylation
作者:J. Forniés-Cámer、A. Aaliti、N. Ruiz、A.M. Masdeu-Bultó、C. Claver、C.J. Cardin
DOI:10.1016/s0022-328x(96)06662-4
日期:1997.3
Ph2P(CH2)4PPh2; dithiolato = −S(CH2)4S−, (−)-DIOS) were prepared by the same method. The structure of [Pt((−)DIOS)(PPh3)2] and [Pd(S(CH2)4S)(Ph2P(CH2)3PPh2)] complexes was determined by X-ray diffraction methods. Pt—dithiolato—SnC12 systems are active in the hydroformylation of styrene. At 100 atm and 125°C [Pt(dithiolate)(P-P)]/SnCl2 (Pt:Sn = 20) systems provided aldehyde conversion up to 80%.
在[PtCl 2(PP)](PP =(PPh 3)2,Ph 2 P(CH 2)3 PPh 2,Phd 2 P(CH 2)4 PPh 2 ; 1的二氯甲烷溶液中添加1,4-二硫醇,4-二硫醇= HS(CH 2)4 SH,(-)DIOSH 2(2,3 - O-异亚丙基-1,4-二硫醇-1-苏糖醇),BINASH 2(1,1'-二萘-2, 2'-二硫醇))在NEt 3的存在下产生单核络合物[Pt(1,4-二硫代巯基)(PP)]。相关钯(II)配合物[Pd(dithiolato)(PP)](PP = Ph2 P(CH 2)3 PPh 2,Ph 2 P(CH 2)4 PPh 2;dithiolato = - S(CH 2)4小号- ,(- ) - DIOS)通过相同的方法制备。通过X射线衍射确定[Pt((-)DIOS)(PPh 3)2 ]和[Pd(S(CH 2)4 S)(Ph 2 P(CH 2)3 PPh