Title:
PREPARATION OF 1,2-NAPHTHOQUINONE-2-DIAZIDO-4- SULFONYLCHLORIDE
Document Type and Number:
Japanese Patent JP3425535
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a preparation method for 1,2-naphthoquinone-2-diazido-4- sulfonylchloride capable of preparing 1,2-naphthoquinone-2-diazido-4- sulfonylchloride in high yield preventing production of impurities.
SOLUTION: The 1,2-naphthoquinone-2-diazido-4-sulfonylchloride is obtained by reacting 1,2-naphthoquinone-2-diazido and chlorosulfuric acid to obtain a mixture of a sulfonated diazido compound and chlorosulfonated diazido compound, and further reacting the mixture and at least one selected from thionyl chloride and phosphorus pentoxide.
Inventors:
Hirotada Iida
Toshishima Narushige
Naoki Sato
Yoneyama Nobuhiro
Yuuki Hotta
Itahana Toshio
Yuichi Hagiwara
Toshishima Narushige
Naoki Sato
Yoneyama Nobuhiro
Yuuki Hotta
Itahana Toshio
Yuichi Hagiwara
Application Number:
JP10784399A
Publication Date:
July 14, 2003
Filing Date:
April 15, 1999
Export Citation:
Assignee:
Toyo Gosei Co., Ltd.
International Classes:
C07C303/02; C07C303/08; C07C303/12; C07C303/22; C07C309/85; C07C309/26; (IPC1-7): C07C303/12; C07C303/02; C07C309/85
Domestic Patent References:
| JP827098A | ||||
| JP4994641A |
Other References:
ＳＡＵＥＲ，Ｅ．ｅｔ ａｌ．，Ｓｕｌｆｏｃｈｌｏｒｉｅｒｕｎｇ ｖｏｎ １，２−Ｎａｐｈｔｈｏｃｈｉｎｏｎｄｉａｚｉｄ−（２） ｍｉｔ Ｃｈｌｏｒｓｕｌｆｏｎｓａｕｒｅ，Ｊｏｕｒｎａｌ ｆｕｅｒ Ｐｒａｋｔｉｓｃｈｅ Ｃｈｅｍｉｅ，１９９１年，Ｖｏｌ．３３３，Ｎｏ．３，ｐ．４６７−４７３
Attorney, Agent or Firm:
Hiroyuki Kurihara