developed for the efficient chemoselective reduction of aldehydes in the presence of ketones. This method offers a useful synthetic protocol for distinguishing carbonyl reaction sites, and itssyntheticutility is reflected by its moisture tolerance and high efficiency in a variety of complex settings.
An electrocatalytic allylic C−H alkylation reaction with carbon nucleophiles is reported, which employs an easily available cobalt–salen complex as the molecular catalyst. The method is characterized by its excellent functional group tolerance, substrate compatibility with both linear and branched terminal alkenes, and scalability (up to 200 mmol scale) with a low loading of electrolyte (down to 0
Synthesis of carboxylic acids containing cycloalkyl and phenyl groups by a free-radical addition reaction
作者:Yu. N. Ogibin、B. E. Chistyakov、N. A. Aleinikov、G. I. Nikishin
DOI:10.1007/bf00845947
日期:1966.4
Direct ni mediated synthesis of ketones from acyl bromides and grignard reagents
作者:Corrado Malanga、Laura A. Aronica、Luciano Lardicci
DOI:10.1016/0040-4039(95)01936-c
日期:1995.12
a catalytic amount of NidppeCl(2) converts an acyl bromide directly into ketones at 0 degrees C in THF in the presence of a Grignard reagent. The described procedure represents a useful way to afford dialkyl, diaryl or alkyl aryl ketones as well as 1,2-diketones. In the adopted reaction conditions double bonds, esters and ketones are unaffected.