Copper catalysed domino decarboxylative cross coupling-cyclisation reactions: synthesis of 2-arylindoles
摘要:
The efficient synthesis of 2-arylindoles and 6H-isoindolo[2,1-a]indol-6-one through copper catalysed domino sp-sp(2) decarboxylative cross-coupling and subsequent cyclisation reactions of arylpropiolic acids with 2-iodotrifluoroacetanilide has been described. This methodology also demonstrates that indolo[1,2-c]quinazolin-6(5H)-one can be obtained with the elimination of trifluoromethyl anion. (C) 2012 Elsevier Ltd. All rights reserved.
Its important to evaluate an influence of different structural units on the mesomorphic and physical properties of mesogenic compounds. A number of 1,2-diphenylethynes containing fluorine atom in an aromatic ring (I, II) and several fluorine atoms in a terminal alkyl chain (II, III) were obtained in this work.