655229-87-1Relevant academic research and scientific papers
N-butyllithium-mediated reactions of 1-(2-azidoarylmethyl)-1H- benzotriazoles with alkyl halides
Kim, Taehoon,Kim, Kyongtae
experimental part, p. 98 - 111 (2010/04/23)
(Chemical Equation Presented) Treatment of 1-(2-azidoarylmethyl)-1H- benzotriazoles (6) with n-BuLi (2.5 equiv.) in THF at -78°C, followed by an addition of alkyl halides such as allyl, benzyl, and ethyl bromides with stirring for 2 h at room temperature afforded 2-(dialkylamino)-3-(benzotriazol- 1-yl)-2H-indazoles (8), 3-(benzotriazol-1-yl)-2H-indazoles (9), 2-[(benzotriazol-1-yl)methyl]arylamine (10), and 2-[(benzotriazol-1-yl)(alkyl) methyl]arylamine (11).
Intramolecular addition of benzylic radicals onto ketenimines. Synthesis of 2-alkylindoles
Alajarin, Mateo,Vidal, Angel,Ortin, Maria-Mar
, p. 4282 - 4292 (2007/10/03)
The inter- and intramolecular addition of free radicals onto ketenimines is studied. All the attempts to add intermolecularly several silicon, oxygen or carbon centered radicals to N-(4-methylphenyl)-C,C-diphenyl ketenimine were unsuccessful. In contrast, the intramolecular addition of benzylic radicals, generated from xanthates, onto the central carbon of a ketenimine function with its N atom linked to the ortho position of the aromatic ring occurred under a variety of reaction conditions. These intramolecular cyclizations provide a novel radical-mediated synthesis of 2-alkylindoles.
