An efficient oxidation of 2-aryl-1,2,3,4-tetrahydro-4-quinolones employing ferric chloride hexahydrate–methanol: synthesis of naturally occurring 4-alkoxy-2-arylquinolines
摘要:
A simple, inexpensive and efficient oxidation of 2-aryl-1,2,3,4-tetrahydro-4-quinolones has been carried out by employing FeCl3-6H(2)O-methanol under mild conditions. This method has been investigated for the synthesis of an endothelin receptor antagonist, benzofuro[3,2-b]pyridine core structure. (C) 2004 Elsevier Ltd. All rights reserved.
Sulfuric acid promoted condensation cyclization of 2-(2-(trimethylsilyl) ethynyl)anilines with arylaldehydes in alcoholic solvents: an efficient one-pot synthesis of 4-alkoxy-2-arylquinolines
An efficient method for the synthesis of 4-alkoxy-2-arylquinolines has been developed. The reaction proceeds smoothly by heating a mixture of easily accessible 2-(2-(trimethylsilyl) ethynyl)anilines and arylaldehydes in alcoholic solvents in the presence of sulfuric acid. (C) 2009 Elsevier Ltd. All rights reserved.