SYNTHESIS AND REACTION OF 6,7-DIHYDROAZIRINOTHIENOPYRIDIN-8-ONE
6,7-Dihydroazirinothienopyridin-8-one (7) was synthesized and its base-catalyzed ring-opening leading to 4,5-dihydro-8H-thienoazepin-8-one (8) was studied.
The 7-benzyl-5,6,7,8-tetrahydro-4H-thienoazepin-4-one (11) has been synthesized from the N-benzyl-N-(2-thenyl)-β-alanine (10) by a tin(IV) chloride-catalysed Friedel-Crafts cyclization.In addition, N-benzyl- and N-(p-tolylsulphonyl)-N-(3-thenyl)-β-