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Title:
SYNTHESIS METHOD FOR BORONIC ACID ESTER COMPOUND, AND SODIUM SALT OF BORONIC ACID ESTER COMPOUND AND SYNTHESIS METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/142854
Kind Code:
A1
Abstract:
The present invention establishes a technique enabling easy synthesis of a boronic acid ester compound at low cost with high efficiency through a small number of steps without the need of a complicated chemical technique or reagents that need to be carefully handled. Also, established are a sodium salt of a boronic acid ester compound which is a novel compound, and a technique for synthesizing the sodium salt. This method for synthesizing a boronic acid ester compound or a sodium salt thereof, comprises a step for reacting, in an reaction solvent, an organic chloride with a dispersion in which sodium is dispersed in a dispersion solvent, to obtain an organic sodium compound, and for reacting the obtained organic sodium compound with a boric acid ester compound to obtain a boronic acid ester compound or a sodium salt of the boronic acid ester compound. Also provided is a sodium salt of the boronic acid ester compound.

Inventors:
MURAKAMI YOSHIAKI (JP)
FUKUSHIMA MIYUKI (JP)
TAKAI KAZUHIKO (JP)
ASAKO SOBI (JP)
Application Number:
PCT/JP2019/001235
Publication Date:
July 25, 2019
Filing Date:
January 17, 2019
Export Citation:
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Assignee:
KOBELCO ECO SOLUTIONS CO LTD (JP)
NAT UNIV CORPORATION OKAYAMA UNIV (JP)
International Classes:
C07F5/04; C07F5/02
Domestic Patent References:
WO2008093637A12008-08-07
WO2013080583A12013-06-06
WO2019004371A12019-01-03
Foreign References:
JP2009102678A2009-05-14
JP2006223345A2006-08-31
Other References:
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See also references of EP 3741764A4
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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