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作者:Yong-Rong Yang , Qiang Zhang , Feng-Tian Du ...
来源:[J].Tetrahedron(IF 2.803), 2015, Vol.71 (25), pp.4304-4311
摘要:Abstract(#br)A simple and efficient catalytic method for the synthesis of alkenyl halides via direct coupling of alcohols and alkynes using aqueous HX (X=Cl, Br) as halide sources has been developed under mild conditions in the presence of Fe powder (1 mol %). In comparison with ...
作者:Céline Cannes , Eric Labbé , Muriel Durandetti ...
来源:[J].Journal of Electroanalytical Chemistry(IF 2.672), 1996, Vol.412 (1), pp.85-93
摘要:Abstract(#br)We describe the electroanalytical determination of the successive electron transfer/chemical steps involved in the nickel-catalyzed electrosynthesis of conjugated dienes from alkenyl halides in DMF. Two catalytic sequences are proposed, depending on the potential app...
作者:Nicos A. Petasis , Ilia A. Zavialov
来源:[J].Tetrahedron Letters(IF 2.397), 1996, Vol.37 (5), pp.567-570
摘要:Abstract(#br)Reaction of alkenyl boronic acids with halosuccinimides (NIS, NBS or NCS) gives the corresponding alkenyl halides with the same geometry. This method is suitable for the synthesis of geometrically pure (E) and (Z) alkenyl halides, as well as 1,1- and 1,2-dihaloalkene...
作者:Zhong-Quan Liu , Jianguo Wang , Jie Han ...
来源:[J].Tetrahedron Letters(IF 2.397), 2009, Vol.50 (11), pp.1240-1242
摘要:Abstract(#br)This work demonstrated an efficient and mild method for preparing various substituted alkenyl halides via direct C–C bond formation of benzyl alcohols and aryl alkynes in CH 2 Cl 2 at 50 °C by using 50 mol % of FeCl 3 ·6H 2 O or FeBr 3 . Compared with the syste...
作者:Li-Xiong Shao , Min Shi
来源:[J].Tetrahedron(IF 2.803), 2007, Vol.63 (48), pp.11938-11942
摘要:Abstract(#br)We report herein copper(I)-catalyzed cross-coupling reactions of alkenyl halides with alkynes for the synthesis of 2-alkynyl-buta-1,3-dienes in good to excellent yields. This procedure is the first example for the synthesis of enynes catalyzed by catalytic amount of ...
作者:R. Rossi , F. Bellina , D. Ciucci
来源:[J].Journal of Organometallic Chemistry(IF 2), 1997, Vol.542 (1), pp.113-120
摘要:... In the presence of a palladium(0) catalyst precursor, compounds 11 undergo cross-coupling reactions with aryl or alkenyl halides bearing a variety of functional groups to give in moderate to high yields the desired 2-substituted 2-cyclohexen-1-ones 12 .
作者:Xavier Moreau , Jean-Marc Campagne
来源:[J].Journal of Organometallic Chemistry(IF 2), 2003, Vol.687 (2), pp.322-326
摘要:Abstract(#br)Palladium catalyzed cystein thiol cross-coupling reactions with aryl and vinyl halides have been investigated: Pd 2 dba 3 -CHCl 3 and dppf are the key choice in these reactions. The role of the base in these reactions was also questioned: it has been shown that base ...
作者:Muriel Durandetti , Jacques Périchon , Jean-Yves Nédélec
来源:[J].Tetrahedron Letters(IF 2.397), 1997, Vol.38 (50), pp.8683-8686
摘要:Abstract(#br)2- or 3-bromothiophene are efficiently coupled with activated alkyl chlorides (α-chloroesters, αchloroketones, α-chloronitriles), benzyl chloride or vinyl halides, in a one step electrochemical reaction, using the sacrificial anode process and catalysis by NiBr ...

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