IT7819930A0 - Procedimento per preparare protocatecualdeide. - Google Patents

Procedimento per preparare protocatecualdeide.

Info

Publication number
IT7819930A0
IT7819930A0 IT7819930A IT1993078A IT7819930A0 IT 7819930 A0 IT7819930 A0 IT 7819930A0 IT 7819930 A IT7819930 A IT 7819930A IT 1993078 A IT1993078 A IT 1993078A IT 7819930 A0 IT7819930 A0 IT 7819930A0
Authority
IT
Italy
Prior art keywords
protocatecualdehyde
preparing
procedure
preparing protocatecualdehyde
Prior art date
Application number
IT7819930A
Other languages
English (en)
Other versions
IT1092403B (it
Original Assignee
Ube Industries
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 JP1073377A external-priority patent/JPS5398934A/ja
Priority claimed from JP5259077A external-priority patent/JPS53137923A/ja
Application filed by Ube Industries filed Critical Ube Industries
Publication of IT7819930A0 publication Critical patent/IT7819930A0/it
Application granted granted Critical
Publication of IT1092403B publication Critical patent/IT1092403B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/29—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups
    • C07C45/292—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups with chromium derivatives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/29—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups
    • C07C45/298—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation of hydroxy groups with manganese derivatives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/31—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with compounds containing mercury atoms, which may be regenerated in situ, e.g. by oxygen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
    • C07C45/39—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups being a secondary hydroxyl group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/367—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of functional groups containing oxygen only in singly bound form
    • 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
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
IT19930/78A 1977-02-04 1978-02-02 Procedimento per preparare protocatecualdeide IT1092403B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1073377A JPS5398934A (en) 1977-02-04 1977-02-04 Preparation of 3-alkoxy-4-hydroxybenzaldehyde
JP5259077A JPS53137923A (en) 1977-05-10 1977-05-10 Preparation of protocatechuic aldehyde

Publications (2)

Publication Number Publication Date
IT7819930A0 true IT7819930A0 (it) 1978-02-02
IT1092403B IT1092403B (it) 1985-07-12

Family

ID=26346048

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19930/78A IT1092403B (it) 1977-02-04 1978-02-02 Procedimento per preparare protocatecualdeide

Country Status (4)

Country Link
US (1) US4165341A (it)
DE (1) DE2804063C3 (it)
FR (1) FR2379501A1 (it)
IT (1) IT1092403B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427322A1 (fr) * 1979-06-15 1979-12-28 Hoechst France Parahydroxymandelate de sodium racemique cristallise, son procede de preparation et son application a la preparation du paraformylphenolate de sodium cristallise
FR2461693A1 (fr) * 1979-07-24 1981-02-06 Brichima Spa Procede pour la preparation d'hydroxy- et d'alcoxy-aldehydes aromatiques
FR2462415A1 (fr) * 1979-07-25 1981-02-13 Hoechst France Procede de preparation d'acides hydroxyarylglycoliques racemiques et produits nouveaux en resultant
JPH0363224A (ja) * 1989-08-02 1991-03-19 Kureha Chem Ind Co Ltd プロトカテキュアルデヒド類の糖誘導体
FR2779718B1 (fr) * 1998-06-16 2000-12-29 Rhodia Chimie Sa Procede de preparation de composes p-hydroxymandeliques eventuellement substitues et derives
FR2925047B1 (fr) * 2007-12-18 2010-01-01 Rhodia Operations Procede de preparation de composes p-hydroxymandeliques eventuellement substitues et derives.
CN101676253B (zh) * 2008-09-18 2012-07-18 中国石油天然气股份有限公司 空气催化氧化合成3,4-二羟基苯甲醛的方法
CN102190567B (zh) * 2010-03-12 2015-06-17 重庆欣欣向荣精细化工有限公司 乙基香兰素生产工艺中脱羧萃取乳化层的处理方法
CN103012091A (zh) * 2011-09-22 2013-04-03 中国石油天然气股份有限公司 氧化铜晶格氧氧化制备3，4-二羟基苯甲醛的方法
FR2993881B1 (fr) 2012-07-26 2014-08-15 Rhodia Operations Procede de preparation d'alkoxyphenol et d'alkoxyhydroxybenzaldehyde
FR2993882B1 (fr) 2012-07-26 2014-08-15 Rhodia Operations Procede de preparation d'alkoxyhydroxybenzaldehyde sensiblement exempte d'alkyl-alkoxyhydroxybenzaldehyde
US9650322B2 (en) 2012-07-26 2017-05-16 Rhodia Operations Method for producing alkoxyhydroxybenzaldehyde
FR3021314B1 (fr) 2014-05-26 2016-05-13 Rhodia Operations Procede de preparation de composes p-hydroxymandeliques en reacteurs agites
CN108947780A (zh) * 2018-07-23 2018-12-07 重庆欣欣向荣精细化工有限公司 一种处理乙基香兰素制备中精馏高沸物的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2062205A (en) * 1932-03-21 1936-11-24 Boedecker Friedrich Process of producing the m-alkylethers of protocatechuic aldehyde
US2199748A (en) * 1935-03-04 1940-05-07 Monsanto Chemicals Production of alkoxy-hydroxy-benzaldehydes
NL7313864A (nl) * 1973-10-09 1975-04-11 Sba Chimie Closetpot uit kunststof.
JPS5239642A (en) * 1975-09-26 1977-03-28 Ube Ind Ltd A process for preparing protocatechualdehyde

Also Published As

Publication number Publication date
IT1092403B (it) 1985-07-12
FR2379501B1 (it) 1981-03-06
DE2804063C3 (de) 1981-03-19
DE2804063A1 (de) 1978-08-10
US4165341A (en) 1979-08-21
FR2379501A1 (fr) 1978-09-01
DE2804063B2 (de) 1980-07-24

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