A novel terphenylphosphine PMe2ArDipp2 (1) (Dipp = 2,6-iPr2C6H3) forms stable Pt(0) complexes with ethene and 3,3-dimethylbut-1-ene that behave as a source of the reactive Pt(PMe2ArDipp2) fragment. The complexes are efficient...
一种新型的三苯膦PMe 2 Ar Dipp2(1)(Dipp = 2,6- i Pr 2 C 6 H 3)与乙烯和3,3-二甲基丁-1-烯形成稳定的Pt(0)络合物,它们作为乙烯的来源反应性Pt(PMe 2 Ar Dipp2)片段。配合物很有效...
Dichloro(ethylenediamine)platinum(II), a water-soluble analog of the antitumor cisplatin, as a heterogeneous catalyst for a stereoselective hydrosilylation of alkynes under neat conditions
hydrosilylation of internal and terminal alkynesunder heterogeneous catalysis by dichloro(ethylenediamine)platinum(II) is discussed. This commercially available platinum complex operates under neat conditions at 90 °C, producing exclusively the (trans) Z-isomer with symmetrical internal alkynes, while terminal alkynes produce a mixture of α- and β(E)-hydrosilylated products. No β(Z)-hydrosilylated product was
Stereoselective synthesis of vinylsilanes via copper-catalyzed silylation of alkenes with silanes
作者:Jian Gu、Chun Cai
DOI:10.1039/c6cc05509e
日期:——
An efficient and stereoselective synthesis of vinylsilanes via copper-catalyzed direct silylation of alkenes with silanes was developed. This study offers a new and expedient strategy for the synthesis of synthetically...
FeCl2/DTBP: An efficient and highly E-selective cross - coupling of silanes with styrene and its derivatives
作者:Rui Xu、Chun Cai
DOI:10.1016/j.catcom.2017.12.023
日期:2018.3
An efficient FeCl2-catalyzed cross-coupling of silanes with styrene and itsderivatives using DTBP as oxidant for selective synthesis of vinylsilanes was developed. This method presented an inexpensive, non-toxic and environmentally benign catalytic system with an appropriate substrate scope. This approach is E-specific and produced important classes of vinylsilanes in good yields. Control experiments
Totally regioselective hydrosilylation of functionalized terminal arylalkynes was achieved using PtCl(2) associated with the air-stable and bulky Xphos ligand with various silanes. Regardless of the electronic nature of the substituents on the aromatic ring, a single beta-(E)-vinylsilane was obtained in excellent yields. (C) 2008 Elsevier Ltd. All rights reserved.