Electrochemical synthesis of 2-arylimino-4,5-di(2-furyl)-1,3-dioxoles and (E)-1,2-di(2-furyl)vinylene bis(N-arylchloroformimidates). HF and B3LYP computational study of the topomerization mechanism of aryliminodioxoles
作者:Antonio Guirado、Andrés Zapata、Raquel Andreu、Carmen Ramírez de Arellano、Peter G. Jones、Jesús Gálvez
DOI:10.1016/j.tet.2009.02.082
日期:2009.5
Cathodic reductions of 2,2'-furils in the presence of bi-arylcarbonimidoyl dichlorides lead to 2-arylimino-4,5-di(2-furyl)-1,3-dioxoles in high yields. along with minor amounts of (E)-1,2-di(2-furyl)vinylene bis(N-arylchloroformimidates). HF and B3LTP density functional theory methods have been applied to the determination of Molecular geometries and to Study the topomerization mechanism of aryliminodioxoles. The molecular structure of (E)-1,2-di(2-furyl)vinylene bis[N-(2-chloro-4-methylphenyl)chloroformimidate] has been determined by X-ray crystallography and compared with the calculated Structure. (C) 2009 Elsevier Ltd. All rights reserved.