Abstract
An efficient method for the acylation and formylation of alcohols and phenols by using an acylating/formylating agent (acetic anhydride and formic acid) in the presence of a catalytic amount of N,N′-dibromo-N,N′–1,2-ethanediylbis(benzene sulfonamide) under mild and solvent-free conditions at room temperature in good to excellent yields is described. The use of protic acids and metal Lewis acids is avoided.
Acknowledgments
The authors acknowledge the Bu-Ali Sina University and Kurdistan University Research Councils for partial support of this work.
Notes
a All products were characterized by comparison of their spectral data (1H NMR, IR) with those of authentic samples.Citation 23 , Citation 24 , Citation 25 , Citation 26
b Isolated yields.
c References for previously reported products.
a All products were characterized by comparison of their spectral data (1H NMR, IR) with those of authentic Samples.Citation 23 , Citation 24 , Citation 25 , Citation 26
b Isolated yields.
c References for previously reported products.