Staudinger’s phosphazene as an efficient esterifying reagent
A new application of Staudinger’s phosphazene as an efficient esterifying reagent is reported. Staudinger’s phosphazene formed in situ by the reaction of organic mono-azide with triphenylphosphine, which is trapped by carboxylic acid, to afford amide exclusively. In contrast, interestingly the same phosphazene behaves in a different way as an efficient esterifying reagent, affording ester under a solvent-free microwave-assisted protocol wherein alcohol is added as the another component in addition to the other reactants. This discovery adds yet another new application of Staudinger’s phosphazene to synthetic chemistry.
Hydroesterification of alkenes with sodium formate and alcohols promoted by cooperative catalysis of Ru3(CO)12 and 2-pyridinemethanol
(Figure Presented) A chelation-assisted hydroesterification reaction of alkenes with sodium formate and alcohols that involves cooperative catalysis by Ru3(CO)12 and 2-pyridinemethanol is described. In this three-component coupling reaction, sodium formate serves as the carbon monoxide source.
Kim, Dong-Su,Park, Woo-Jin,Lee, Chang-Hee,Jun, Chul-Ho
p. 12191 - 12196
(2015/01/09)
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