Abstract
A facile and efficient method for the preparation of 1,1-diacetates of aldehydes is improved. P2O5/montmorillonite K10 catalyzed 1,1-diacetates formation from aldehydes in dry media. Both aromatic and aliphatic aldehydes gave high yields (70–95%) of the corresponding 1,1-diacetates. Advantages of this method are the use of an inexpensive and selective catalyst, with high yields in simple operation and short reaction time under solvent-free conditions.
We are thankful to the Sistan and Baluchestan University Research Council for partial support of this work.
Notes
a Isolated yield.
b All the compounds give satisfactory spectral analysis (IR and 1H-NMR).
c 100% aldehyde recovered.
d 6 equiv. of acetic anhydride were used, conversion rate = 39%.