The preparation of eighteen epoxy diazomethyl ketones 1 is described. Two general methods were developed. Firstly, treatment of the mixed anhydrides of glycidic acids and carbonic acid ester with diazomethane led to the title compounds in yields ranging from 17–74%. Secondly, glycidyl chlorides which were obtained from sodium glycidates and oxalyl chloride, gave the desired products upon treatment
[EN] METHOD FOR THE MANUFACTURE OF COMPOUNDS CONTAINING AN a-OXY PHOSPHORUS GROUP<br/>[FR] PROCÉDÉ POUR LA FABRICATION DE COMPOSÉS CONTENANT UN GROUPE ?-OXY-PHOSPHORÉ
申请人:STRAITMARK HOLDING AG
公开号:WO2012098255A1
公开(公告)日:2012-07-26
A method for the manufacture of compounds containing an α-oxy phosphorus group is disclosed. A P-O component having at least one P-O-P moiety, whereby at least one phosphorus has the +3 oxidation state, is added in specific proportions to a compound containing an α-oxy carboxylic acid group, followed by conducting the reaction and adding water subsequently. The compounds containing an α-oxy phosphorus group formed can then be recovered.