Synthesis of 1-Methyl-3-methylthio- and 1-Methyl-3-methylsulfinyl-4-substituted 2-(1H)-Quinolinones
作者:Andrzej Maslankiewicz、Elwira Chrobak
DOI:10.3987/com-04-10181
日期:——
quinolines (1), 4-quinolinethione (5) and 2-quinolinones (3) underwent S-oxidation to a sulfinyl group when the compounds (1), (3) and (5) were treated with nitrating mixture (-5 °C, 1 mol. eqv. of HNO 3 ), but with an excess of nitric acid 2-quinolinones (3) were transformed to the respective 3-methylsulfinyl-6-nitro derivatives (7). The reaction of 4-chloroquinolines (1a), (3a) (at 140-160 °C) and (4a) (at