JPS54128542A - Preparation of 3-cyanocatechol derivative - Google Patents

Preparation of 3-cyanocatechol derivative

Info

Publication number
JPS54128542A
JPS54128542A JP3410978A JP3410978A JPS54128542A JP S54128542 A JPS54128542 A JP S54128542A JP 3410978 A JP3410978 A JP 3410978A JP 3410978 A JP3410978 A JP 3410978A JP S54128542 A JPS54128542 A JP S54128542A
Authority
JP
Japan
Prior art keywords
compound
derivative
reacting
aqueous medium
basic aqueous
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
JP3410978A
Other languages
Japanese (ja)
Other versions
JPS5721272B2 (en
Inventor
Yoshio Umemura
Takuji Enomiya
Hiroshi Shiraishi
Takahito Nakamura
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.)
Ube Corp
Original Assignee
Ube Industries 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
Application filed by Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP3410978A priority Critical patent/JPS54128542A/en
Publication of JPS54128542A publication Critical patent/JPS54128542A/en
Publication of JPS5721272B2 publication Critical patent/JPS5721272B2/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

Abstract

PURPOSE: To prepare the title compound in high selectivity and yield, useful as a raw material of medicine, pesticide, and dyestuff, by reacting 3-formylocatechol derivative with an N-containing compound in a basic aqueous medium, in the presence of a metal compound.
CONSTITUTION: The compound II (X is H, lower alkyl, lower alkoxy, halogen) is prepared by reacting a 3-formlycatechol derivative I with an N-containing compound selected from ammonia, urea and inorganic ammonium salts (e.g. NH4Cl, (NH4)2SO4, etc.), in a basic aqueous medium at pH9.5W11.5, in the presence of more than equi-molar amount, based on the compound I, of oxide, hydroxide, chloride, sulfate, and/or acetate of a metal selected from Cu, Fe, Mn, Ni and Zn.
EFFECT: The objective compound can be obtained by single state reaction in a short time.
COPYRIGHT: (C)1979,JPO&Japio
JP3410978A 1978-03-27 1978-03-27 Preparation of 3-cyanocatechol derivative Granted JPS54128542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3410978A JPS54128542A (en) 1978-03-27 1978-03-27 Preparation of 3-cyanocatechol derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3410978A JPS54128542A (en) 1978-03-27 1978-03-27 Preparation of 3-cyanocatechol derivative

Publications (2)

Publication Number Publication Date
JPS54128542A true JPS54128542A (en) 1979-10-05
JPS5721272B2 JPS5721272B2 (en) 1982-05-06

Family

ID=12405103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3410978A Granted JPS54128542A (en) 1978-03-27 1978-03-27 Preparation of 3-cyanocatechol derivative

Country Status (1)

Country Link
JP (1) JPS54128542A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237929A1 (en) * 1986-03-11 1987-09-23 F. Hoffmann-La Roche Ag 3,5-Disubstituted pyrocatechol derivatives
WO2014013512A1 (en) * 2012-07-19 2014-01-23 Laurus Labs Private Limited Improved process for preparation of 2,3-dihydroxy benzonitrile
CN112374973A (en) * 2020-11-20 2021-02-19 成都伊诺达博医药科技有限公司 Synthesis method of drug intermediate 4-bromo-2, 3-dihydroxybenzaldehyde

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237929A1 (en) * 1986-03-11 1987-09-23 F. Hoffmann-La Roche Ag 3,5-Disubstituted pyrocatechol derivatives
WO2014013512A1 (en) * 2012-07-19 2014-01-23 Laurus Labs Private Limited Improved process for preparation of 2,3-dihydroxy benzonitrile
US9567292B2 (en) 2012-07-19 2017-02-14 Laurus Labs Private Limited Process for preparation of 2,3-dihydroxy benzonitrile
CN112374973A (en) * 2020-11-20 2021-02-19 成都伊诺达博医药科技有限公司 Synthesis method of drug intermediate 4-bromo-2, 3-dihydroxybenzaldehyde
CN112374973B (en) * 2020-11-20 2023-06-30 成都伊诺达博医药科技有限公司 Synthesis method of drug intermediate 4-bromo-2, 3-dihydroxybenzaldehyde

Also Published As

Publication number Publication date
JPS5721272B2 (en) 1982-05-06

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