[EN] IMPROVED AMINOHYDROXYLATION OF ALKENES<br/>[FR] AMINOHYDROXYLATION AMÉLIORÉE D'ALCÈNES
申请人:IND RES LTD
公开号:WO2011159177A1
公开(公告)日:2011-12-22
The invention relates to a process for the aminohydroxylation of alkenes using N-oxycarbamate reagents, e.g. N-acyloxycarbamate, N-alkyloxycarbonyloxycarbamate and N-aralkoxycarbonyloxycarbamate reagents. The invention particularly relates to an intermolecular aminohydroxylation reaction that can be carried out in the absence of added base. The invention also relates to novel N-oxycarbamate reagents that are stable crystalline materials. The process of the invention is useful in the synthesis of compounds having a vicinal amino alcohol moiety, such as biologically active compounds.
A very mild and selective method for O-benzoylation of hydroxamic acids
作者:Yongsheng Zheng、Muqiong Liu、Yu Yuan
DOI:10.1016/j.tetlet.2014.06.009
日期:2014.7
Selective O-benzoylation of hydroxamic acids is achieved by the treatment of BPO and DABCO. Aliphaticalcohols are not reactive under these conditions. Various radical or oxidation sensitive functional groups are compatible with this protocol, and no anhydrous reagents or solvents are required for the high yields of the benzoylations.