151832-48-3Relevant academic research and scientific papers
Novel Routes to 1-Aryl-1,4-dihydro-3(2H)-isoquinolinones and 2-Substituted or 2,3-Disubstituted Benzofurans by Intramolecular Cyclizations
Katritzky, Alan R.,Lan, Xiangfu,Zhang, Zhongxing
, p. 381 - 387 (2007/10/02)
N-(α-Benzotriazolylalkyl)arylacetamides, readily available from an arylacetamide, an aldehyde and benzotriazole, undergo intramolecular cyclization under acidic conditions to give 1-aryl-1,4-dihydro-3(2H)-isoquinolinones in good to excellent yields.Similarly, 2-(benzotriazol-1-yl)-2-(o-hydroxyphenyl)ethanols, obtained by lithiation of 2-(benzotriazol-1-ylmethyl)phenols followed by quenching with aldehydes or ketones, eliminate a molecule of water and a molecule of benzotriazole yielding 2-substituted and 2,3-disubstituted benzofurans.
