IT1092403B - Procedimento per preparare protocatecualdeide - Google Patents

Procedimento per preparare protocatecualdeide

Info

Publication number
IT1092403B
IT1092403B IT19930/78A IT1993078A IT1092403B IT 1092403 B IT1092403 B IT 1092403B IT 19930/78 A IT19930/78 A IT 19930/78A IT 1993078 A IT1993078 A IT 1993078A IT 1092403 B IT1092403 B IT 1092403B
Authority
IT
Italy
Prior art keywords
protocatecualdeide
preparing
procedure
preparing protocatecualdeide
Prior art date
Application number
IT19930/78A
Other languages
English (en)
Other versions
IT7819930A0 (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 IT7819930A0 (it) 1978-02-02
IT1092403B true 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
FR2993882B1 (fr) 2012-07-26 2014-08-15 Rhodia Operations Procede de preparation d'alkoxyhydroxybenzaldehyde sensiblement exempte d'alkyl-alkoxyhydroxybenzaldehyde
FR2993881B1 (fr) 2012-07-26 2014-08-15 Rhodia Operations Procede de preparation d'alkoxyphenol et d'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
DE2804063C3 (de) 1981-03-19
FR2379501A1 (fr) 1978-09-01
DE2804063B2 (de) 1980-07-24
DE2804063A1 (de) 1978-08-10
IT7819930A0 (it) 1978-02-02
US4165341A (en) 1979-08-21
FR2379501B1 (it) 1981-03-06

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