Title:
METHOD FOR PRODUCING AROMATIC DIPHOSPHATES
Document Type and Number:
WIPO Patent Application WO/2012/005109
Kind Code:
A1
Abstract:
Disclosed is a method for producing aromatic diphosphates that comprises a first process: a process of reacting specific aromatic monohydroxy compounds having sterically hindered groups at the ortho-position with phosphorus oxyhalides in the presence of Lewis acid catalyst and then removing unreacted phosphorus oxyhalide under reduced pressure to obtain specific diaryl phosphorohalidates, and a second process: a process of reacting the reaction product obtained in the aforementioned process with 0.5 moles of specific aromatic dihydroxy compounds with respect to 1 mole of halogen contained in said reaction product in the presence of Lewis acid catalyst to obtain specific aromatic diphosphates.
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Inventors:
HIRAO, Kiyoharu (13-21, Shintomi 1-chome, Chuo-k, Tokyo 41, 〒1040041, JP)
平尾 清春 (〒41 東京都中央区新富１丁目１３番２１号 大八化学工業株式会社内 Tokyo, 〒1040041, JP)
OHTSUKI, Katsuichi (8-13, Hiranomachi 1-chome, Chuo-ku, Osaka-sh, Osaka 46, 〒5410046, JP)
大槻 勝一 (〒46 大阪府大阪市中央区平野町１丁目８番１３号 大八化学工業株式会社内 Osaka, 〒5410046, JP)
平尾 清春 (〒41 東京都中央区新富１丁目１３番２１号 大八化学工業株式会社内 Tokyo, 〒1040041, JP)
OHTSUKI, Katsuichi (8-13, Hiranomachi 1-chome, Chuo-ku, Osaka-sh, Osaka 46, 〒5410046, JP)
大槻 勝一 (〒46 大阪府大阪市中央区平野町１丁目８番１３号 大八化学工業株式会社内 Osaka, 〒5410046, JP)
Application Number:
JP2011/064147
Publication Date:
January 12, 2012
Filing Date:
June 21, 2011
Export Citation:
Assignee:
DAIHACHI CHEMICAL INDUSTRY CO.,LTD. (8-13, Hiranomachi 1-chome Chuo-ku, Osaka-sh, Osaka 46, 〒5410046, JP)
大八化学工業株式会社 (〒46 大阪府大阪市中央区平野町１丁目８番１３号 Osaka, 〒5410046, JP)
HIRAO, Kiyoharu (13-21, Shintomi 1-chome, Chuo-k, Tokyo 41, 〒1040041, JP)
平尾 清春 (〒41 東京都中央区新富１丁目１３番２１号 大八化学工業株式会社内 Tokyo, 〒1040041, JP)
OHTSUKI, Katsuichi (8-13, Hiranomachi 1-chome, Chuo-ku, Osaka-sh, Osaka 46, 〒5410046, JP)
大八化学工業株式会社 (〒46 大阪府大阪市中央区平野町１丁目８番１３号 Osaka, 〒5410046, JP)
HIRAO, Kiyoharu (13-21, Shintomi 1-chome, Chuo-k, Tokyo 41, 〒1040041, JP)
平尾 清春 (〒41 東京都中央区新富１丁目１３番２１号 大八化学工業株式会社内 Tokyo, 〒1040041, JP)
OHTSUKI, Katsuichi (8-13, Hiranomachi 1-chome, Chuo-ku, Osaka-sh, Osaka 46, 〒5410046, JP)
International Classes:
C07F9/12; B01J27/125; B01J27/138; C07F9/14; C07B61/00
Attorney, Agent or Firm:
NOGAWA, Shintaro et al. (Nogawa Patent Office, Nishitenma Five Bldg. 16-3, Nishitenma 5-chome, Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
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