Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Dibenz[c,e]azepine 4a and benzo[e]thieno[c]azepine 4b have been synthesized utilizing the acid-catalyzed cyclization of hydroxylactams 3a,b as key step. ... Selective acid catalyzed cyclization of 3a,b gave azepines 4a,b. ... The HETCOR spectrum of 4a was acquired using the ...