The reaction of cycloalkenes(cyclopentene, cyclohexene, cycloheptene, cyclooctene, 1-methylcyclohexene, and norbornene) with Et2MeSiH and carbonmonoxide in the presence of Co2(CO)8 gave the corresponding diethylmethylsiloxymethylenecycloalkenes. In such reactions of cyclohexene, the following hydrosilanes gave the corresponding siloxymethylenecyclohexanes: Me3SiH, EtMe2SiH, Et2MeSiH, Et3SiH, PhMe2SiH
Synthesis and thermal stability of silicon-containing esters of phosphorus acids
作者:L. S. Zakharov、G. N. Molchanova、T. M. Shcherbina、P. V. Petrovskii、M. I. Kabachnik
DOI:10.1007/bf02495692
日期:1998.9
(b), CF3CH2CH2 (c, e), Me3SiCH2 (d); R′=Me (a-d), Et (e)) were synthesized and their thermalrearrangement, of the 1,2-shift type, was studied. The rearrangement consists of the migration of an alkyl group from Si atom to the methylene carbon atom and gives the corresponding silyl esters. The rate of the rearrangement was found to increase in the order1d<1b<1a<1 (R=R′=Me)<1c corresponding to the enhancement
Benzoimidazole‐Pyridylamido Zirconium and Hafnium Alkyl Complexes as Homogeneous Catalysts for Tandem Carbon Dioxide Hydrosilylation to Methane
作者:Lapo Luconi、Andrea Rossin、Giulia Tuci、Zufar Gafurov、Dmitrii M. Lyubov、Alexander A. Trifonov、Stefano Cicchi、Housseinou Ba、Cuong Pham‐Huu、Dmitry Yakhvarov、Giuliano Giambastiani
DOI:10.1002/cctc.201800077
日期:2019.1.9
Neutral ZrIV and HfIV alkyl/amidocomplexes stabilized by a tridentate N ligand that contains a “rolling” heterodentate benzoimidazole fragment have been prepared and characterized. The ultimate nature of the ligand denticity, the electronic properties of the ligand binding pocket and the metal coordination environment are controlled by the protection/deprotection of the benzoimidazole NH group. The
Carbondioxide was found to be catalytically fixed into silyl esters of formic acid by the reaction with hydrosilanes in the presence of some ruthenium phosphine complexes.