Reactions of free radicals with monoethyldichlorochromium(III) tris(tetrahydrofuranate)
作者:Reiner Sustmann、Rudolf Altevogt
DOI:10.1016/s0040-4039(01)92448-7
日期:1981.1
σ-Ethyl-chromium(III)dichloride · 3 THF reacts with freeradicals by formation of a transient paramagnetic complex which decomposes giving the combination product of alkyl ligand and radical.
Substituent effects on the reaction of trityl chlorides with Grignard reagents
作者:Ryan E. Oyler、Benjamin E. Ketz、Timothy E. Glass
DOI:10.1016/s0040-4039(00)01470-2
日期:2000.10
The result of the substitution of trityl chlorides with Grignardreagents was found to be highly dependent on the solvent and the nature of the substituents on the trityl group. In THF, electron donating substituents were found to give high yields of Grignard addition while electron withdrawing substituents were found to give mostly reduction to the corresponding triphenyl methane via hydride abstraction