JPS5594395A - Preparation of diacetone ketogulonic acid ester - Google Patents

Preparation of diacetone ketogulonic acid ester

Info

Publication number
JPS5594395A
JPS5594395A JP97879A JP97879A JPS5594395A JP S5594395 A JPS5594395 A JP S5594395A JP 97879 A JP97879 A JP 97879A JP 97879 A JP97879 A JP 97879A JP S5594395 A JPS5594395 A JP S5594395A
Authority
JP
Japan
Prior art keywords
acid ester
preparation
ketogulonic acid
diacetone ketogulonic
diacetonesorbose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP97879A
Other languages
Japanese (ja)
Other versions
JPS6312876B2 (en
Inventor
Joji Nishikido
Yohei Fukuoka
Nobuhiro Tamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP978A external-priority patent/JPS53130716A/en
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Publication of JPS5594395A publication Critical patent/JPS5594395A/en
Publication of JPS6312876B2 publication Critical patent/JPS6312876B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Saccharide Compounds (AREA)

Abstract

PURPOSE: To prepare the title compound useful as an intermediate of L-ascorbic acid for medical use, economically, in an industrial scale, by oxidizing diacetonesorbose with oxygen(-containing) gas, in an alcohol, in the presence of a Pd-containing catalyst.
CONSTITUTION: The objective diacetone ketogulonic acid ester of formula II (R1,2 are H, lower alkyl, aryl, etc.; R3 is lower alkyl) is prepared by oxidizing diacetonesorbose of formula I in an alcohol solvent with an oxygen(-containing) gas, in the presence of a Pd-containing catalyst. The catalyst pref. contains Pd and at least one metal (compound) selected from Pb, Hg, and Tl.
EFFECT: The reaction can be carried out in one step.
COPYRIGHT: (C)1980,JPO&Japio
JP97879A 1978-01-04 1979-01-11 Preparation of diacetone ketogulonic acid ester Granted JPS5594395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP978A JPS53130716A (en) 1977-01-03 1978-01-04 Method and apparatus for bending plate glass method of forming plate glass and device for hanging plate glass

Publications (2)

Publication Number Publication Date
JPS5594395A true JPS5594395A (en) 1980-07-17
JPS6312876B2 JPS6312876B2 (en) 1988-03-23

Family

ID=11462451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP97879A Granted JPS5594395A (en) 1978-01-04 1979-01-11 Preparation of diacetone ketogulonic acid ester

Country Status (1)

Country Link
JP (1) JPS5594395A (en)

Also Published As

Publication number Publication date
JPS6312876B2 (en) 1988-03-23

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