Tetrahedron

… -mediated preparation of 2-arylquinoline and 4-aryl-1-azaanthraquinone derivatives. X-Ray crystal structure of 1, 2-dihydro-3H-indazolo [2, 3-a] quinolin-4-one

P Molina, A Pastor, MJ Vilaplana, C Foces-Foces

Index: Molina; Molina, Pedro; Pastor; Pastor, Aurelia; Vilaplana; Vilaplana, Maria Jesus; Foces-Foces; Foces-Foces, Concepcion Tetrahedron, 1995 , vol. 51, # 4 p. 1265 - 1276

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Citation Number: 20

Abstract

The reaction of the iminophosphorane derived from 3-azidocyclohexen-2-enone with substituted cinnamyl aldehydes affords 2-aryl-tetrahydroquinoline derivatives, which are easily converted into 2-arylquinolines. By contrast, iminophosphorane derived from 2- azidocyclohex-2-enone reacts only with α, β-unsaturated aldehydes without substituent at β- position to give 5, 6-dihydro-8 (7H) quinolinones. The iminophosphorane derived from 2- ...