Qian Zhang, Zhiguo Zhang, Zihong Yan
2007
Citations
0
Influential Citations
36
Citations
Journal
Organic letters
Abstract
A new efficient synthesis of pyrano[2,3-b]quinoline derivatives is developed via the H2SO4-mediated tandem cyclization/ring-opening/recyclization reaction of readily available 1-acetyl N-aryl cyclopentanecarboxamides, during which a novel ring-cleavage fashion of the cyclopentane unit is involved and possible mechanisms are discussed.