A new synthesis of benzofuro[3,2-c]pyridines

The condensation of O-phenylhydroxylamine with piperidin-4-one and 3-methylpiperidin-4-one has given 1,2,3,4-tetrahydrobenzofuro3,2-c]pyridine and 4-methyl-1,2,3,4-tetrahydro-benzofuro 3,2-c]pyridine, and these have been dehydrogenated to the corresponding heteroaromatic system of benzofuro3,2-c]pyridine.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No.7, pp. 908–909, July, 1973.