Title:
メチレンジスルホネート化合物の製造方法
Document Type and Number:
Japanese Patent JP5247436
Kind Code:
B2
Abstract:
The present invention provides a process for producing a methylene disulfonate compound in a simple manner at low cost.
The present invention provides a process for producing a methylene disulfonate compound represented by General Formula (2) comprising:
reacting, in the presence of a dehydrating agent, a formaldehyde compound with a sulfonic acid compound represented by General Formula (1):
wherein R 1 and R 2 are independently a hydrogen atom or a C 1-4 alkyl group whose hydrogen atom may be substituted with halogen atom; n is an integer from 1 to 4; and when n is an integer from 2 to 4, n R 1 s and n R 2 s may be the same or different:
wherein, R 1 , R 2 , and n are the same as those described above for General Formula (1).
Inventors:
Takehiro Hiyama
Takeuchi Tsuyoshi
Hidehiko Akemi
Hirokazu Kagano
Takeuchi Tsuyoshi
Hidehiko Akemi
Hirokazu Kagano
Application Number:
JP2008513124A
Publication Date:
July 24, 2013
Filing Date:
April 04, 2007
Export Citation:
Assignee:
Sumitomo Seika Co., Ltd.
International Classes:
C07D327/00
Domestic Patent References:
| JP2005336155A | 2005-12-08 | |||
| JPS61501089A | 1986-05-29 | |||
| JPS57150654A | 1982-09-17 | |||
| JP2005336155A | 2005-12-08 | |||
| JPS61501089A | 1986-05-29 | |||
| JPS57150654A | 1982-09-17 |
Attorney, Agent or Firm:
Eiji Saegusa
Hitoshi Seki
Mutsuko Nakano
Masahito Hayashi
Hitoshi Seki
Mutsuko Nakano
Masahito Hayashi