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Construction of heterocycles via 1,4-dipolar cycloaddition of quinoline–DMAD zwitterion with various dipolarophiles
作者:Vijay Nair、S. Devipriya、Eringathodi Suresh
DOI:10.1016/j.tet.2008.01.106
日期:2008.4
Quinoline forms 1,4-zwitterion with dimethyl acetylenedicarboxylate, which is trapped by various dipolarophiles to yield a variety of pyridoquinoline and oxazinoquinoline derivatives. (c) 2008 Elsevier Ltd. All rights reserved.
Synthesis and structure of novel 2-amino-l,3-dicyano-4-cyclopropyl-6-aryl-1,3-cyclohexadienes
作者:V. N. Nesterov、G. E. Khoroshilov、Yu. T. Struchkov、Yu. A. Sharanin
DOI:10.1007/bf00697084
日期:1993.2
The reaction of arylmethylenedicyanoacetates with 1,1-dicyano-2-cyclopropylpropene was studied and found to give 2-amino-1,3-dicyano-4-cyclopropyl-6-aryl-1,3-cyclohexadienes. The structure of 2-amino-6-(2-nitrophenyl)-1,3-dicyano-4-cyclopropyl-1,3-cyclohexadiene was corroborated by means of X-ray analysis.