ChemInform Abstract: A Flexible Radical Approach to 5‐Substituted 4,5‐Dihydro‐3H‐pyrido[4,3‐b]azepin‐2‐ones. Some Mechanistic Observations on the Radical Cyclization—Aromatization Process.

Abstract

A Flexible Radical Approach to 5-Substituted 4,5-Dihydro-3H-pyrido[4,3-b]azepin-2-ones. Some Mechanistic Observations on the Radical Cyclization-Aromatization Process. -A convenient two-step sequence allows the synthesis of the title compounds via radical addition of xanthates to substrate (I) followed by radical cyclization onto the pyridine ring. -(PETIT, L.; BOTEZ, I.; TIZOT, A.; ZARD*, S. Z.; Tetrahedron Lett. 53 (2012) 26, 3220-3224, http://dx.