An Efficient One-Pot Three-Component Synthesis of Highly Functionalized Coumarin Fused Indenodihydropyridine and Chromeno[4,3-b]quinoline Derivatives
摘要:
An efficient one-pot, three-component synthesis method of highly functionalized coumarin fused 7,13-dihydro-5-oxa-13-aza-indeno[2,1-b]phenanthrene and chromeno[4,3-b]quinoline derivatives was accomplished using aromatic aldehyde, 4-aminocoumarin and cyclic 1,3-dione in acetic acid at reflux temperature. Environmental-friendly protocol has advantages of high yields, creating three new bonds and one stereocenter in single operation. Further, XRD and DFT study confirmed the molecular structure, stability and different interaction in the crystal packing.
An efficient green protocol for the synthesis of coumarin fused highly decorated indenodihydropyridyl and dihydropyridyl derivatives
作者:Sanjay Paul、Asish R. Das
DOI:10.1016/j.tetlet.2012.02.077
日期:2012.4
A simple, convenient, environmentally benign, and mild synthetic method has been established to afford highly decorated indenodihydropyridine and dihydropyridine derivatives employing a green solvent ethyl-L-lactate and an organo-catalyst (+/-)lactic acid. A wide range of functional groups were tolerated in the developed protocol. The target molecules were obtained in moderate to good yields applying the current method. (c) 2012 Elsevier Ltd. All rights reserved.
An Efficient One-Pot Three-Component Synthesis of Highly Functionalized Coumarin Fused Indenodihydropyridine and Chromeno[4,3-b]quinoline Derivatives
作者:Naseem Ahmed、B. Venkata Babu、Sandeep Singh、Petar M. Mitrasinovic
DOI:10.3987/com-12-12494
日期:——
An efficient one-pot, three-component synthesis method of highly functionalized coumarin fused 7,13-dihydro-5-oxa-13-aza-indeno[2,1-b]phenanthrene and chromeno[4,3-b]quinoline derivatives was accomplished using aromatic aldehyde, 4-aminocoumarin and cyclic 1,3-dione in acetic acid at reflux temperature. Environmental-friendly protocol has advantages of high yields, creating three new bonds and one stereocenter in single operation. Further, XRD and DFT study confirmed the molecular structure, stability and different interaction in the crystal packing.