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Synthesis 1985; 1985(12): 1157-1158
DOI: 10.1055/s-1985-31462
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Highly para-Selective Mono-Chlorination of Aromatic Compounds Under Mild Conditions by t-Butyl Hypochlorite in the Presence of Zeolites

Keith Smith* , Michael Butters, Barry Nay
  • *Department of Chemistry, University College of Swansea, Swansea SA2 SPP, U. K.
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Publikationsdatum:
27. September 2002 (online)

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t-Butyl hypochlorite supported on H+, Na+ faujasite X (zeolite X) produces para-selective monchlorination of alkyl-, phenyl-, and halobenzenes under mild conditions; for example, chlorobenzene in acetonitrile (at 40°C) is chlorinated in high yield of isolated product (92%) to give dichlorobenzene with an isomer ratio 97% para/3% ortho.