1248615-31-7Relevant articles and documents
Palladium-catalyzed ring-opening of cyclopropyl benzamides: Synthesis of benzo[c]azepine-1-ones via C(sp3)-H functionalization
Ladd, Carolyn L.,Roman, Daniela Sustac,Charette, André B.
, p. 4479 - 4487 (2013/06/26)
A variety of difficult to obtain benzo[c]azepine-1-ones are synthesized via a novel palladium-catalyzed, silver-promoted intramolecular cyclization of cyclopropyl benzamides. This biologically important class of molecules is prepared in an efficient and high-yielding manner from easily accessible starting materials. Both aryl bromides and iodides are effective substrates for the transformation. Mechanistic studies indicate that the reaction proceeds through a cyclopropyl C(sp3)-H cleavage step, followed by ring-opening, deprotonation, and reductive elimination.
