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Title:
DEUTERIUM-ENRICHED COMPOSITION, DEUTERIUM-SUBSTITUTED CARBOXYLIC ACID PRODUCTION METHOD, REACTION ACCELERATOR, AND USE OF COMPOUND FOR CONVERTING CARBOXYLIC ACID TO ACID ANHYDRIDE
Document Type and Number:
WIPO Patent Application WO/2023/038093
Kind Code:
A1
Abstract:
Provided is a deuterium-enriched composition comprising a deuterium-substituted carboxylic acid or a salt thereof, wherein the carboxylic acid or the salt thereof includes an α hydrogen of a carboxy group and a hydrogen other than the α hydrogen bonded to a carbon, the deuterium substitution rate of the α hydrogen is not less than 5%, the deuterium substitution rate of the hydrogen other than the α hydrogen is not more than 3%, and when the carboxylic acid or the salt thereof comprises, in the molecule thereof, a group having a carbonyl group other than the carboxy group, the α hydrogen of the carbonyl group is not included in hydrogen other than the α hydrogen.

Inventors:
OHSHIMA TAKASHI (JP)
YAZAKI RYO (JP)
TANAKA TSUKUSHI (JP)
Application Number:
PCT/JP2022/033782
Publication Date:
March 16, 2023
Filing Date:
September 08, 2022
Export Citation:
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Assignee:
UNIV KYUSHU NAT UNIV CORP (JP)
International Classes:
C07B59/00; C07C57/02; C07C57/38; C07C59/13; C07C59/205; C07C59/70; C07C59/84; C07C61/135; C07C61/29; C07C69/14; C07C69/44; C07C229/42; C07C233/47; C07C317/44; C07C323/62; C07D205/04; C07D207/337; C07D209/28; C07D209/48; C07D231/56; C07D263/32; C07D313/12; C07D491/052
Domestic Patent References:
WO2020017569A12020-01-23
WO2003053910A12003-07-03
Foreign References:
JPH0921768A1997-01-21
JP2020528892A2020-10-01
US20090082417A12009-03-26
Other References:
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Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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