Diazo Reactions with Unsaturated Compounds: IX. ortho-, meta-, and para-Nitrophenylsulfonyl-1,3-butadienes in Reaction with 1-Aryl-3,3-dimethyl-1-triazenes
1-(p-Nitrophenylsulfonyl)buta-1,3-diene reacts with arenediazonium chlorides in aqueous acetone in the presence of catalytic amounts of CuCl2.2H(2)O to form 1-(p-nitrophenylsulfonyl)-4-aryl-3-chloro-1-butenes. In the presence of SO2, 1-(p-nitrophenylsulfonyl)buta-1,3-diene does not react with arenediazonium chlorides.
Kekisheva, L. V.; Stadnichuk, M. D., Journal of general chemistry of the USSR, 1988, vol. 58, # 3, p. 516 - 525