Process for the production of 2,6-dichloro-3,5-di(secondary or tertiary alkyl)toluene
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United States of America Patent
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Aug 7, 2001
Grant Date -
N/A
app pub date -
Apr 15, 1998
filing date -
Jun 13, 1995
priority date (Note) -
Expired
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Abstract
This invention relates to an improved process for producing 2,6-dichloro-3,5-di(secondary or tertiary alkyl)toluene represented by the following formula (I). The process comprises chlorinating 3,5-di(secondary and tertiary alkyl)toluene represented by the following formula (II) by reacting with a chlorinating agent in the presence of a Lewis acid together with an aromatic sulfur compound represented by the formula (III) as a promoter: ##STR1## wherein R.sup.1 and R.sup.2 are independently a secondary alkyl or tertiary alkyl group, Ar.sup.1 and Ar.sup.2 are independently an unsubstituted or substituted aromatic ring, and n is 1 or 2.
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