Title:
How to adjust chloro aromatic compounds and Bromo aromatic compounds
Document Type and Number:
Japanese Patent JP5995445
Kind Code:
B2
Abstract:
The present invention relates to a novel process for preparing chloro- or bromoaromatics of the formula (II) by diazotizing the formula (I) by means of sodium nitrite or potassium nitrite in the presence of aqueous hydrochloric or hydrobromic acids and then reacting with an iron(II) or iron(III) compound, optionally in the presence of additional amounts of hydrogen chloride or hydrogen bromide or alkali metal or alkaline earth metal chlorides or bromides.
Inventors:
Himler, Thomas
Application Number:
JP2011553334A
Publication Date:
September 21, 2016
Filing Date:
March 05, 2010
Export Citation:
Assignee:
Bayer Intellectual Property GmbH
International Classes:
C07C17/093; B01J27/053; B01J27/128; C07B61/00; C07C25/02
Domestic Patent References:
| JP2008529986A |
Foreign References:
| FR2475535A1 |
Other References:
社団法人日本化学会編、実験化学講座13 有機化合物の合成I -炭化水素・ハロゲン化物-、第5版、丸善株式会社、平成16年2月20日発行、第409~413頁
Herbert H. Hodgson他1名著、An Interpretation of the Sandmeyer Reaction. Part VII.、Journal of Chemical Society、The Chemical Society、1945年、第819~821頁
Herbert H. Hodgson他1名著、An Interpretation of the Sandmeyer Reaction. Part VII.、Journal of Chemical Society、The Chemical Society、1945年、第819~821頁
Attorney, Agent or Firm:
Makoto Ono
Kenkyo Kanayama
Mitsuaki Tsubokura
Kazuki Shigemori
Kenji Ando
Hidehiko Ichikawa
Takahiro Aoki
Yoshie Sakurada
Yousuke Kawasaki
Toshikazu Imato
Yoshikazu Iwase
Yasufumi Shiroyama
Kenkyo Kanayama
Mitsuaki Tsubokura
Kazuki Shigemori
Kenji Ando
Hidehiko Ichikawa
Takahiro Aoki
Yoshie Sakurada
Yousuke Kawasaki
Toshikazu Imato
Yoshikazu Iwase
Yasufumi Shiroyama
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