A simple and convenient base-mediated synthesis of asymmetrical carbonates from alcohols with dimethyl carbonate is described. The reaction is remarkably influenced by the strength of the base employed and potassium t-butoxide was found to be best promoter for this reaction. Almost in all cases, the reaction is selective and afforded the corresponding unsymmetrical methyl carbonates in excellent yields (80-90 %). Graphical abstract: [Figure not available: see fulltext.]
Bibliographical noteFunding Information:
We are thankful to the Director, IIP for his kind permission to publish these results. SK acknowledges the CSIR, New Delhi for the award of his Research Fellowship.
- Dimethyl carbonate
- Organic carbonates