Dialkylacetoinyl phosphates

Phosphodiesters. The pyrophosphate (1) reacts with alcohols or phenols in the presence of 1 eq. of a base (2,4,6-collidine) to give (2) and the coUidinium salt (3). The product (2) can react with another alcohol in the absence of a base to give dialkylacetoinyl phosphates (4) in yields of about 95% (4, 536). The... 

Ramirez and Marecek have developed a convenient method for the preparation of dialkylacetoinyl phosphates (3) without isolation of intermediates. The reagent is the p-nitrophenyl(l,2-dimethylethenylenedioxy) phosphate (2), prepared by the reaction of p-nitrophenol with (1). The reaction is carried out in CH2CI2 by dropwise addition of R OH and triethylamine (1 eq. of each) to... 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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