Furyl(aryl)methanes and their Derivatives. Part 21: Cinnoline Derivatives from 2-Aminophenylbisfurylmethanes
摘要:
(Z)-4-[4-(5-Methyl-2-furyl)-3-cinnolinyl]-3-buten-2-ones and (Z)-1-[4-(5-ethyl-2-furyl)-3-cinnolinyl] -1-penten-3-ones have been obtained from 2-aminoarylbisfurylmethanes under treatment with isoamyl nitrite/trimethylchlorosilane in dry acetonitrile. Intramolecular cyclisation and furan oxidative ring opening follow the formation of an intermediate diazonium salt. X-Ray analysis proved the cis-configuration of the alkene side chain. (C) 2000 Elsevier Science Ltd. All rights reserved.
Furyl(aryl)methanes and their Derivatives. Part 21: Cinnoline Derivatives from 2-Aminophenylbisfurylmethanes
作者:Vladimir T. Abaev、Andrey V. Gutnov、Alexander V. Butin、Valerij E. Zavodnik
DOI:10.1016/s0040-4020(00)00780-8
日期:2000.11
(Z)-4-[4-(5-Methyl-2-furyl)-3-cinnolinyl]-3-buten-2-ones and (Z)-1-[4-(5-ethyl-2-furyl)-3-cinnolinyl] -1-penten-3-ones have been obtained from 2-aminoarylbisfurylmethanes under treatment with isoamyl nitrite/trimethylchlorosilane in dry acetonitrile. Intramolecular cyclisation and furan oxidative ring opening follow the formation of an intermediate diazonium salt. X-Ray analysis proved the cis-configuration of the alkene side chain. (C) 2000 Elsevier Science Ltd. All rights reserved.