A photoredox/nickeldual catalyzed reductive hydrobenzylation of alkynes and benzyl chlorides by employing alkyl amines as a stoichiometric reductant is described. This synergistic protocol proceeds via Markovnikov-selective migratory insertion of an alkyne into nickel hydride, followed by cross-coupling with benzyl chloride, providing facile access to important 1,1-disubstituted olefins. This reaction
Synthesis of hydrido-bis(acetylide) complexes of rhodium and the molecular structures of mer-trans-[Rh(PMe<sub>3</sub>)<sub>3</sub>(H)(CCPh)<sub>2</sub>] and mer-trans-[{Rh(dmpe)(H)(CCSiMe<sub>3</sub>)<sub>2</sub>}<sub>2</sub>(µ-dmpe)](dmpe = Me<sub>2</sub>PCH<sub>2</sub>CH<sub>2</sub>PMe<sub>2</sub>)
作者:Pauline Chow、David Zargarian、Nicholas J. Taylor、Todd B. Marder
DOI:10.1039/c39890001545
日期:——
Complexes of the form mer-trans-[Rh(PMe3)3(H)(CCR)2] and mer-trans-[Rh(dmpe)(H)(CCR)2}2(µ-dmpe)] have been prepared by oxidative addition of HCCR to [Rh(PMe3)4(CCR)] and [Rh(dmpe)2Me] species, respectively; the molecular structures of mer-trans-[Rh(PMe3)3(H)(CCPh)2] and mer-trans-[Rh(dmpe)(H)(CCSiMe3)2}2(µ-dmpe)](dmpe = Me2PCH2CH2PMe2) have been determined by single crystal X-ray diffraction studies.
cis -Carbocuperation of acetylenic sulfoxides and corresponding applications in the regio- and stereoselective synthesis of polysubstituted vinyl sulfoxides
作者:Qing Xu、Xian Huang
DOI:10.1016/j.tetlet.2004.05.141
日期:2004.7
cis-Carbocuperation reaction of monoorganocopper reagent with acetylenic sulfoxides, followed by electrophilic reaction with a variety of electrophiles, provided a regio- and stereoselective method to prepare the versatile polysubstituted vinyl sulfoxides. Sonogashira cross-coupling reaction of the obtained alpha-iodovinyl sulfoxides with terminal acetylenes was also investigated to afford the versatile conjugate sulfinyl enynes. (C) 2004 Elsevier Ltd. All rights reserved.
KARAEV S. F.; SHIXIEV N. G., AZEHRB. KIMJA ZH., AZERB. XIM. ZH., 1978, HO 1, 61-64