Copper sees the light of day: [Cu(dap)2Cl] proved to be an excellent photoredoxcatalyst for atom‐transfer radical addition reactions, as well as for allylation reactions (see scheme), providing an attractive alternative to commonly used iridium‐ and ruthenium‐based catalysts.
The Reaction of Polyhalides with Allylsilanes Catalyzed by Copper(I) Chloride
作者:Michiharu Mitani、Shigenori Hujita
DOI:10.1246/bcsj.70.3055
日期:1997.12
compounds in the presence of copper species, such as copper(I) chloride, copper(II) chloride or metallic copper, to form polyhalo compounds containing an allyl group. Other allylsilane derivatives than allyltrimethylsilane were also subjected to a reaction with carbontetrachloride. 3-Chloro- or 3-bromo-3-trimethylsilyl-1-propene gave 4,4,4-trichloro-1-trimethylsilyl-1-butene. Ethyl 1-trimethylsilylallyl
Reaction of allyl bromides with bromoform and base under phase transfer conditions
作者:Mark S. Baird、Anthony G. W. Baxter、B. R. J. Devlin、R. J. G. Searle
DOI:10.1039/c39790000210
日期:——
The reaction of allylic bromides with bromoform and aqueous baseunderphasetransferconditions is strongly dependent on the catalyst; when benzyltriethylammonium chloride is used, the major primary product is a 4,4,4-tribromobut-1-ene.
Steuerung einer reaktionsverzweigung durch geeignete phasentransfer-katalysatoren anwendungen der phasentransfer-katalyse 37.
作者:Eckehard V. Dehmlow、Jürgen Wilkenloh
DOI:10.1016/s0040-4039(00)96761-3
日期:1987.1
The influence of phasetransfer catalyst structure on a branching of reaction paths is recorded. An almost complete change-over of mechanisms can be achieved. Reaction of allylbromide with bromoform/sodium hydroxide/catalyst yields carbene adduct and displacement products and . Two new and unusual catalysts, AsPh4Cl and [Ph3PNPPh3] Cl, give substitution: addition ~10:1, wheras NMe4Cl and benzo-15-crown-5