Gas phase surface-catalyzed HCl addition to vinylacetylene: motion along a catalytic surface. Experiment and theory
作者:Linda M. Mascavage、Fan Zhang-Plasket、Philip E. Sonnet、David R. Dalton
DOI:10.1016/j.tet.2008.07.081
日期:2008.9
Gaseous mixtures of HCl and vinylacetylene were permitted to react in Pyrex IR cells (NaCl windows). Gaseous 4-chloro-1,2-butadiene and 2-chloro-1,3-butadiene (chloroprene) were the major products. Kinetic data (FTIR) generated a rate expression in concert with surface catalysis. Computational studies involving surface associated water provide a view that accounts for the experimentally determined orders and a bifurcated pathway producing both products. The results are in accord with wall-adsorbed reactant(s) as well as previously reported computational studies oil the reactants. (C) 2008 Elsevier Ltd. All rights reserved.
Regioselectivity in catalytic cyclopropanation reactions
作者:Michael P. Doyle、Roberta L. Dorow、William H. Tamblyn、William E. Buhro
DOI:10.1016/s0040-4039(00)87316-5
日期:1982.1
Cycloaddition. IV. Addition Products of 1,1-Dichloro-2,2-difluoroethylene to a Further Series of Dienes
A short synthesis of (3E,5Z)-1,3,5-undecatriene (cis-galbanolene) is described. The key step is the Pd/Cu-catalyzed coupling reaction of (E)-1-chloro-1,3-butadiene with 1-alkynes followed by stereoselective zinc reduction of the triple bond.
ANCIAUX, A. J.;DEMONCEAU, A.;NOELS, A. F.;WARIN, R.;HUBERT, A. J.;TEYSSIE+, TETRAHEDRON, 1983, 39, N 13, 2169-2173
作者:ANCIAUX, A. J.、DEMONCEAU, A.、NOELS, A. F.、WARIN, R.、HUBERT, A. J.、TEYSSIE+