The palladium catalyzed cross-coupling reaction of trialky](indol-2-yl)borates with prop-2-ynyl carbonates was developed for the preparation of 2-allenylindole derivatives. When the reaction of indolyl-borates with tert-prop-2-ynyl carbonates was carried out. 2-allenylindoles were obtained solely. Otherwise, indolylborates reacted with sec-prop-2-ynyl carbonates, giving rise to 2-allenylindoles and/or 3-(prop-2-ynyl)indoles depending on the catalyst used. (C) 1998 Elsevier Science Ltd. All rights reserved.
The Palladium Catalysed Cross-coupling Reaction of Triethyl (1-Methylindol-2-yl)borate with Propargyl Carbonate
作者:Minoru Ishikura、Isao Agata
DOI:10.3987/com-96-7498
日期:——
The palladium catalysed cross-coupling reaction of triethyl (1-methylindol-2-yl)borate with propargyl carbonates could be used for a simple formation of 2-allenylindoles.