Geminal‐dichloromethyl derivatives could be efficiently synthesized by the highly chemoselective platinum on carbon‐catalyzed mono‐dechlorination of trichloromethyl substrates in dimethylacetamide (DMA) as a specific solvent at 25 °C under a hydrogen atmosphere.
Dichloromeldrum’s Acid (DiCMA): A Practical and Green Amine Dichloroacetylation Reagent
作者:David M. Heard、Alastair J. J. Lennox
DOI:10.1021/acs.orglett.1c00850
日期:2021.5.7
dichloroacetylation of anilines and alkylamines to produce α,α-dichloroacetamides, which are important motifs for medicinal chemistry. Products are formed in good to excellent yields with reagent grade solvents, and, as the only byproducts are acetone and CO2, no column chromatography is required. Thus, this reagent is practical, efficient, and green for the dichloroacetylation of primary amines.