作者:Boris A. Trofimov、Alexander M. Vasil’tsov、Al’bina I. Mikhaleva、Andrey V. Ivanov、Elena V. Skital’tseva、Elena Yu. Schmidt、Elena Yu. Senotrusova、Igor A. Ushakov、Konstantin B. Petrushenko
DOI:10.1016/j.tetlet.2008.10.104
日期:2009.1
itriles, were synthesized from readily available 1-vinylpyrrole-2-carbaldehyde oximes by two methods: (1) reaction with acetylene (KOH/DMSO, 70 °C, 10 min, yields 58–67%) and (2) reaction with aceticanhydride (90–100 °C, 5 h, yields 83–93%). Starting from 2-phenyl-1-vinylpyrrole, the one-pot synthesis of the corresponding 1-vinyl-2-carbonitrile was accomplished directly by successive treatment with
Metallation of N-vinylpyrroles and -indoles with Hg(OAc)2: N-vinyl vs. pyrrole nucleophilic sites
作者:Boris A. Trofimov、Andrey V. Ivanov、Igor A. Ushakov、Elena Yu. Schmidt、Lyubov N. Sobenina、Alexander M. Vasil'tsov、Albina I. Mikhaleva
DOI:10.1039/c2dt12393b
日期:——
N-Vinylpyrroles and -indoles bearing electron-withdrawing substituents at the pyrrole ring are mercurated, with 1 equivalent of Hg(OAc)2 in dry MeCN (20–80 °C), regioselectively at the vinyl group (yields are almost quantitative), while their congeners without electron-withdrawing functions are mercurated both at the N-vinyl group and the pyrrole ring.