Title:
METHOD FOR PRODUCING SEMICARBAZIDE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2019/240141
Kind Code:
A1
Abstract:
Provided is a method for producing a high-purity, high-quality semicarbazide compound at a high yield by a simple method. The semicarbazide compound is recrystallized by a solvent containing a halogenated hydrocarbon. Dichloromethane is preferred as the halogenated hydrocarbon.
Inventors:
SATOU MAKOTO (JP)
MATSUSHIGE MISAO (JP)
FUKUZAWA SEKETSU (JP)
TAKIWAKI MASAKI (JP)
MATSUSHIGE MISAO (JP)
FUKUZAWA SEKETSU (JP)
TAKIWAKI MASAKI (JP)
Application Number:
PCT/JP2019/023164
Publication Date:
December 19, 2019
Filing Date:
June 11, 2019
Export Citation:
Assignee:
TOKUYAMA CORP (JP)
JEOL LTD (JP)
JEOL LTD (JP)
International Classes:
C07C281/06
Domestic Patent References:
| WO2004002996A1 | 2004-01-08 |
Foreign References:
| JP2018054459A | 2018-04-05 | |||
| JP2013518258A | 2013-05-20 | |||
| JP2013518258W |
Other References:
S.MALLAKPOUR ET AL., JOURNAL OF APPLIED POLYMER SCIENCE, vol. 103, no. 2, 2007, pages 947 - 954
OGAWA, RAPID COMMUN. MASS SPECTROM, vol. 27, 2013, pages 2453 - 2460
See also references of EP 3708562A4
OGAWA, RAPID COMMUN. MASS SPECTROM, vol. 27, 2013, pages 2453 - 2460
See also references of EP 3708562A4
Attorney, Agent or Firm:
KATO Ryuta et al. (JP)
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