Naphtho- and Benzo[g]quinoxalino-Fused Oxazocinoquinolinones and Their Diaryl and Alkynyl Analogues from Quinolin-8-ols: A Library of Novel Polynuclear Heteroaromatics
Naphtho- and Benzo[g]quinoxalino-Fused Oxazocinoquinolinones and Their Diaryl and Alkynyl Analogues from Quinolin-8-ols: A Library of Novel Polynuclear Heteroaromatics
The efficient syntheses of 6,6,8,6,6-pentacyclic naphtho-fused oxazocinoquinolinones and 6,6,8,6,6,6-hexacyclic benzo[g]quinoxalino-fused oxazocinoquinolinones were achieved in one-pot sequences. The generation of libraries of their diaryl- and alkynyl-substituted analogues via Suzuki-Miyaura and Sonogashira cross-coupling reactions, respectively, were also achieved.
Facile synthesis of 6,6,8,6,6-ring fused pentacyclic heterocycles: annelation of quinolines to quinoxalines under PTC condition
作者:Priyankar Paira、Rupankar Paira、Abhijit Hazra、Subhendu Naskar、Krishnendu B. Sahu、Pritam Saha、Shyamal Mondal、Arindam Maity、Sukdeb Banerjee、Nirup B. Mondal
DOI:10.1016/j.tetlet.2009.05.103
日期:2009.8
An efficient and simple synthesis of pentacyclic quinolonoquinoxalinooxazocines in a one-pot sequence has been performed by unique application of phase transfer catalysis. Preparative simplicity and conceptual novelty of the methodology offer an attractive generalapplication for the synthesis of novel quinoline antibiotics.