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Title:
NOVEL PROCESS FOR PRODUCING BISAMINOPHENYLALKYLUREA
Document Type and Number:
WIPO Patent Application WO/2011/136231
Kind Code:
A1
Abstract:
Disclosed is a process for producing a high-purity bisaminophenylalkylurea as the desired compound in high yield while attaining a high volumetric efficiency and generating little by-product. A (nitrophenyl)alkylamine hydrohalogenide represented by formula (1) and a carbonyl compound represented by formula (2) are subjected to condensation reaction in an amide solvent in the presence of a base to produce a nitro compound represented by formula (3). Subsequently, the obtained nitro compound is reduced in a lower alcohol solvent to thereby produce a bisaminophenylalkylurea represented by formula (4).

Inventors:
TAKASE KENJI (JP)
TOKUNAGA KENICHI (JP)
GOTO YUICHI (JP)
Application Number:
JP2011/060182
Publication Date:
November 03, 2011
Filing Date:
April 26, 2011
Export Citation:
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Assignee:
NISSAN CHEMICAL IND LTD (JP)
TAKASE KENJI (JP)
TOKUNAGA KENICHI (JP)
GOTO YUICHI (JP)
International Classes:
C07C273/18; C07C275/24; C07B61/00
Domestic Patent References:
WO2010053128A12010-05-14
Foreign References:
JPH06239804A1994-08-30
Other References:
PHILLIP A. SHELTON ET AL., CHEM. COMMUN., 2009, pages 947 - 949
CARA A. GRASSO ET AL., J. ORG. CHEM., vol. 65, no. 17, 2000, pages 5216 - 5222
MAN-KIT LEUNG ET AL., J. ORG. CHEM., vol. 61, no. 12, 1996, pages 4175 - 4179
TOHRU YOSHIDA ET AL., BULL. CHEM. SOC. JPN., vol. 60, no. 5, 1987, pages 1793 - 1799
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
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Claims: