Furthermore, complex ((2-iPr2PC6H4)Si(OMe))Fe(H)(PMe3) (7) was isolated by the reaction of complex 6 with 2 equiv. MeOH in THF. The molecular structure of complex 7 was also determined by single-crystal X-ray analysis. Complexes 3, 4, 6 and 7 showed good to excellent catalytic activity for transferhydrogenation of aldehydes under mild conditions, using 2-propanol as both solvent and hydrogen donor. α
一系列带有钳型 [PSiP] 配体 (2-R 2 PC 6 H 4 ) 2 SiH 2 (R = Ph ( 1 ) 和 Pr ( 5 )) 或 (2报道了-Ph 2 PC 6 H 4 ) 2 SiMeH ( 2 )。预配体1与Fe(PMe 3 ) 4在甲苯中反应生成络合物((2-Ph 2 PC 6 H 4 )SiH)Fe(H)(PMe 3 ) 2 ( 3 ),并通过X射线衍射对其结构进行了表征。 ((2-Pr 2 PC 6 H 4 )SiH)Fe(H)(PMe 3 ) ( 6 )可由预配体5与Fe(PMe 3 ) 4在甲苯中反应得到。此外,通过配合物6与2当量的反应分离出配合物((2-Pr 2 PC 6 H 4 )Si(OMe))Fe(H)(PMe 3 ) ( 7 )。 甲醇的四氢呋喃溶液。配合物7的分子结构也通过单晶X射线分析确定。配合物3、4、6和7在温和条件下使用2-丙醇作为溶剂和氢
Synthesis and Reactivity of Platinum Group Metal Complexes Featuring the New Pincer-like Bis(phosphino)silyl Ligand [κ<sup>3</sup>-(2-Ph<sub>2</sub><i>P</i>C<sub>6</sub>H<sub>4</sub>)<sub>2</sub><i>Si</i>Me]<sup>−</sup> ([PSiP]): Application in the Ruthenium-Mediated Transfer Hydrogenation of Ketones
作者:Morgan C. MacInnis、Darren F. MacLean、Rylan J. Lundgren、Robert McDonald、Laura Turculet
DOI:10.1021/om7009528
日期:2007.12.1
coordinatively unsaturated Ru, Rh, Pd, and Pt complexes supported by the new pincer-like bis(phosphino)silyl ligand [κ3-(2-Ph2PC6H4)2SiMe]− ([PSiP]) is described. In the first application of silyl pincer-type complexes in transferhydrogenationcatalysis, [PSiP]Ru species were shown to be effective in mediating the reduction of ketones employing basic iPrOH as the hydrogen source.
配位不饱和钌,铑,钯,和铂配合物的由新的钳状二(膦基)甲硅烷基配体支持的合成[κ 3 - (2-PH 2 P c ^ 6 ħ 4)2的Si本人] -([PSIP ])。在甲硅烷基钳型配合物在转移氢化催化中的首次应用中,[PSiP] Ru物种被证明可有效地介导使用碱性i PrOH作为氢源的酮还原反应。
Bis(<i>o</i>-phosphinophenyl)silane as a Scaffold for Dynamic Behavior of H−Si and C−Si Bonds with Palladium(0)
作者:Jun Takaya、Nobuharu Iwasawa
DOI:10.1021/om900874p
日期:2009.12.14
Synthesis and structural analysis of an unprecedented η2-Si−H complex of mononuclear Pd(0) was achieved utilizing bis(o-phosphinophenyl)silane as a PSiP pincer-type scaffold for the first time. This complex showed dynamic behavior in its reaction with an allene, involving a reversible oxidative addition/reductive elimination sequence of a C(sp3)−Si bond at room temperature. This system will be useful
Si–C bond cleavage by hydride complexes of rhodium and iridium: comparison of Si–C(sp2) and Si–C(sp3) activation
作者:Hajime Kameo、Sho Ishii、Hiroshi Nakazawa
DOI:10.1039/c3dt32896a
日期:——
Single Si–CR (R = Ph, Me, Et) bond activation in o-(Ph2P)C6H4}2Si(Me)(R) induced by Rh(H)(CO)(PPh3)3 was developed. The efficiency of Si–CR bond breaking reactions increased at 60 °C in the order Si–CEt < Si–CMe < Si–CPh and strongly depended on the reaction temperature. Elevating the reaction temperature promoted Si–CMe over Si–CPh bond activation, demonstrating that Si–CMe cleavage is entropically
由Rh(H)(CO)(PPh 3)诱导的 o-(Ph 2 P)C 6 H 4 } 2 Si(Me)(R)中的单个Si– CR(R = Ph,Me,Et)键活化)3已开发。Si-C R键断裂反应的效率在60°C时以Si-C Et
Synthesis and Reactivity of Silyl Iron, Cobalt, and Nickel Complexes Bearing a [PSiP]-Pincer Ligand via Si–H Bond Activation
作者:Siquan Wu、Xiaoyan Li、Zichang Xiong、Wengang Xu、Yunqiang Lu、Hongjian Sun
DOI:10.1021/om400047j
日期:2013.6.10
complex [PSiP]Co(PMe3)2 (14) via reductive elimination. The simple anhydrous inorganic salt NiCl2 or CoCl2 could also react with 1 in the presence of PMe3 to form the corresponding silyl complexes 3 and [PSiP]Co(Cl)(PMe3) (15) via Si–H bond cleavage. 1 reacted with Fe(PMe3)4 to form the hexacoordinate octahedral hydrido iron(II) complex [PSiP]Fe(H)(PMe3)2 (16). The molecularstructures of complexes