Résumé/Abstract Treatment of N-arylmethyl-N-methyl-cis-3-phenylsulfanyl acrylamide (5) with p-toluenesulfonic acid induced two reactions; cyclization to 1, 2-dihydrobenz [c] azepin- 3-ones (7) and N-dearylmethylation to N-methylacrylamides (9 and 10) depending on the structures of the substrates. The route provides a simple method of preparing 6-methoxy- (7e), 8-methoxy-(7d), 6, 8-dimethoxy-(7f), and 8, 9-dimethoxy-N-methyl-1, 2-dihydrobenz-[ ...
