Reaction of NaCO(CO)4 with R2BI under carbon monoxide at atmospheric pressure at room temperature readily gives the dialkyl ketones in good yields (61–85%) after H2O2/OH− oxidation.
A simple synthesis of dialkylketones from alkenes via hydroboration-carbenoidation
作者:C. Narayana、M. Periasamy
DOI:10.1016/s0040-4039(01)84599-8
日期:——
Hydroboration of alkenes with sodium acetoxyborohydride(NaBH3OAc) followed by carbenoidation using NaOCH3/CHCl3 system and oxidation with H2O2/NaOH give dialkylketones.
Lithiation of Alkoxyalkyl Phenyl Sulfones. New Approach to Acyl Anion Synthesis
作者:Kazuhiko Tanaka、Syuichi Matsui、Aritsune Kaji
DOI:10.1246/bcsj.53.3619
日期:1980.12
l and 1-(1-ethoxyethoxy)ethyl phenyl sulfones undergo metalation with LDA in THF in the presence of HMPA. The resulting lithium salts were easily alkylated with various alkyl halides and hydrolyzed under mild conditions to give the corresponding carbonyl compounds. The new synthetic method for the preparation of aldehydes and ketones employing these carbanions has been developed.