A selective synthesis of 2-([2,2]paracyclophan-5-yl)pyrrole from 5-acetyl[2,2]paracyclophane via the Trofimov reaction
作者:Elena Yu Schmidt、Nadezhda V Zorina、Alexey B Zaitsev、Al'bina I Mikhaleva、Alexander M Vasil'tsov、Pierre Audebert、Gilles Clavier、Rachel Méallet-Renault、Robert B Pansu
DOI:10.1016/j.tetlet.2004.05.059
日期:2004.7
the key intermediate of the Trofimov reaction (pyrrole formation from ketoximes and acetylene), gives (120 °C, 30 min, DMSO) 2-([2,2]paracyclophan-5-yl)pyrrole in 74% yield. The intermediate 5-(1-vinyloxyiminoethyl)[2,2]paracyclophane has been synthesised in 78% yield by vinylation of the Cs-derivative of the oxime of 5-acetyl[2,2]paracyclophane with acetylene under pressure in the DMSO–n-pentane two-phase