发明名称 |
Process for the production of 2,6-dichloro-3,5-di(secondary or tertiary alkyl)toluene |
摘要 |
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:wherein R1 and R2 are independently a secondary alkyl or tertiary alkyl group, Ar1 and Ar2 are independently an unsubstituted or substituted aromatic ring, and n is 1 or 2.
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申请公布号 |
US6271426(B1) |
申请公布日期 |
2001.08.07 |
申请号 |
US19980981537 |
申请日期 |
1998.04.15 |
申请人 |
KUREHA KAGAKU KOGYO K.K. |
发明人 |
HOZUMI TOSHIO;TANONAKA TAKAYUKI;TAKAHASHI HITOSHI;MOE HIDENORI;HIRUTA MASAAKI;KASAMI TADAHITO |
分类号 |
B01J31/30;B01J31/02;C07B61/00;C07C17/12;C07C25/02;(IPC1-7):C07C22/00 |
主分类号 |
B01J31/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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