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
摘要:
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.
Electrochemical reduction of diheteroaryl-1,2-diketones in the presence of carbonimidoyl dichlorides. First synthesis of 2-arylimino-4,5-di-2-furyl-1,3-dioxoles and (E)-1,2-di-2-furylvinylene bis(N-arylchloroformimidates)
Selective cathodic reductions of 2,2'-furil in an aprotic medium, under constant potential. in the presence of equimolecular amounts of N-arylcarbonimidoyl dichlorides provide previously unknown it 2-arylimino-4.5-di-2-furyl-1,3-dioxoles in high yields. These compounds were formed accompanied by minor products which were identified as (E)-1,2-di-2-furylvinylene bis(N-arylchloroformimidates). a new class of compound. Similar reductions were applied to 2.2'-pyridil. 2,2'-thenil and bis(pyrrol-2-yl)-1,2-ethanedione. However, arylisocyanides were quantitatively generated by mediated electroreduction of arylcarbonimidoyl dichlorides. (C) 2002 Elsevier Science Ltd. All rights reserved.
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.