Halogenation O 0235Regiospecific Chlorination of Xylenes Using K-10 Montmorrillonite Clay. -Chlorination of xylenes with NCS in the presence of montmorillonite results in products of electrophilic aromatic substitution whilst side-chain halogenated products [cf. (VIII)] are obtained in the absence of clay. -(THIRUMAMAGAL*, B. T. S.; NARAYANASAMY, S.; VENKATESAN, R.; Synth. Commun. 38 (2008) 16, 2820-2825; Dep. Org. Chem., Univ. Madras, Chennai 600 025, India; Eng.) -C. Cyrus 05-036
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