Abstract

1-(p-Nitrophenylsulfonyl)buta-1,3-diene reacts with arenediazonium chlorides in aqueous acetone in the presence of catalytic amounts of CuCl2·2H2O to form 1-(p-nitrophenylsulfonyl)-4-aryl-3-chloro-1-bu- tenes. In the presence of SO2, 1-(p-nitrophenylsulfonyl)buta-1,3-diene does not react with arenediazonium chlorides.

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