Acylation of Heterocyclic Ketene Aminals with Benzoyl Chloride
Abstract
Heterocyclic ketene aminals 1 or 2 react with benzoyl chloride to give the regiospecifically mono-N-benzoylated products 5 or 6, while N-methyl heterocyclic ketene aminals 3 or 4 react under the same conditions, to give a more complex mixture of products.