title: Synthesis of 7-aryl/heteraryl-1,3-diphenyl-1,2,4-benzotriazinyls via palladium catalyzed Stille and Suzuki-Miyaura reactions.
abstract: Stille and Suzuki-Miyaura reactions of 7-iodo-1,3-diphenyl-1,4-dihydro-1,2,4-benzotriazin-4-yl are presented as rare examples of cross-coupling reactions with stable organic radicals. Both the Stille and Suzuki-Miyaura reactions are in most cases high yielding but the latter are cleaner while the former are faster and are accompanied by 1,3-diphenyl-1,2,4-benzotriazin-7(H)-one as by-product. A range of 7-aryl and 7-heteroaryl-1,2,4-benzotriazinyls have been synthesized and characterized using standard spectroscopic and spectrometric means.
authors.affiliation: Department of Chemistry, University of Cyprus, P.O. Box 20537, 1678 Nicosia, Cyprus.
authors.forename: Christos P
authors.initials: CP
authors.lastname: Constantinides
authors.forename: Panayiotis A
authors.initials: PA
authors.lastname: Koutentis
authors.forename: Georgia
authors.initials: G
authors.lastname: Loizou