Title:
４，４′−ジヨード−３，３′−ジメチルビフェニルの製造方法
Document Type and Number:
Japanese Patent JP6861060
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a production method of 4,4'-diiodo-3,3'-dimethylbiphenyl, which is industrially excellent with high production efficiency and without using highly-toxic raw material.SOLUTION: Provided ia a production method of 4,4'-diiodo-3,3'-dimethylbiphenyl by reacting 3,3'-dimethylbiphenyl with an iodinated agent, comprising the steps of: subjecting 4,4'-diiodo-3,3'-dimethylbiphenyl to reactive crystallization in a reaction liquid; and subjecting deposited 4,4'-diiodo-3,3'-dimethylbiphenyl to solid-liquid separation.SELECTED DRAWING: None
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Inventors:
Jiro Nakatani
Application Number:
JP2017052503A
Publication Date:
April 21, 2021
Filing Date:
March 17, 2017
Export Citation:
Assignee:
Toray Fine Chemicals Co., Ltd.
International Classes:
C07C17/12; C07C17/392; C07C25/18
Domestic Patent References:
| JP62012728A | ||||
| JP7233106A | ||||
| JP2004262769A | ||||
| JP6199745A | ||||
| JP2005314158A | ||||
| JP10236991A | ||||
| JP2000319209A | ||||
| JP6072918A |
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Takayoshi in the daytime
Masao Sakaizawa
Takayoshi in the daytime
Masao Sakaizawa