3. leads to amide products which can be hydrolyzed under mild conditions. The amidation reaction is mild, general and compatible with both primary C−H bonds of tertiary and secondary alcohols, as well as secondary C−H bonds of cyclic secondary alcohols. This method provides an easy access to free 1,2-aminoalcohols after efficient and mild cleavage of the oxime directing group and activated amide.
Electrochemical trifluoromethylation of carbonyl compounds
作者:S. Sibille、S. Mcharek、J. Perichon
DOI:10.1016/0040-4020(89)80140-1
日期:1989.1
The electroreduction of CF3Br in DMF containing aldehydes or ketones, using a sacrificial zinc anode, affords the corresponding trifluoromethyl alcohols together with the unreactive organozinc species CF3ZnBr and (CF3)2Zn. The alcohols are obtained with good yields from aldehydes. With ketones the organozinc species are formed preferentially to the alcohols, but the addition of tetramethylethylene-diamine