FR2655983B1 - PROCESS FOR THE PREPARATION OF ALCOXY-3 HYDROXY-4 BENZALDEHYDES. - Google Patents

PROCESS FOR THE PREPARATION OF ALCOXY-3 HYDROXY-4 BENZALDEHYDES.

Info

Publication number
FR2655983B1
FR2655983B1 FR8917212A FR8917212A FR2655983B1 FR 2655983 B1 FR2655983 B1 FR 2655983B1 FR 8917212 A FR8917212 A FR 8917212A FR 8917212 A FR8917212 A FR 8917212A FR 2655983 B1 FR2655983 B1 FR 2655983B1
Authority
FR
France
Prior art keywords
preparation
hydroxybenzaldehydes
alcoxy
benzaldehydes
hydroxy
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.)
Expired - Lifetime
Application number
FR8917212A
Other languages
French (fr)
Other versions
FR2655983A1 (en
Inventor
Nobel Dominique
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.)
Rhodia Chimie SAS
Original Assignee
Rhone Poulenc Chimie SA
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 Rhone Poulenc Chimie SA filed Critical Rhone Poulenc Chimie SA
Priority to FR8917212A priority Critical patent/FR2655983B1/en
Priority to EP19900403587 priority patent/EP0434516A3/en
Priority to IE464290A priority patent/IE904642A1/en
Priority to JP41932190A priority patent/JPH04297432A/en
Publication of FR2655983A1 publication Critical patent/FR2655983A1/en
Application granted granted Critical
Publication of FR2655983B1 publication Critical patent/FR2655983B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C07C45/70—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction with functional groups containing oxygen only in singly bound form
    • 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
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C07C45/70—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction with functional groups containing oxygen only in singly bound form
    • C07C45/71—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction with functional groups containing oxygen only in singly bound form being hydroxy groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to a process for the preparation of 3-alkoxy-4-hydroxybenzaldehydes from 3-halo-4-hydroxybenzaldehydes. More precisely, the invention consists of a process for the preparation of 3-alkoxy-4-hydroxybenzaldehydes by reaction of 3-halo-4-hydroxybenzaldehydes with an alkali metal alkoxide having 1 to 4 carbon atoms and in the presence of a copper compound, characterised in that the reaction is carried out in the presence of an effective amount of an unsaturated compound chosen from organic isocyanides, isocyanates or esters of alkynedioic acids.
FR8917212A 1989-12-20 1989-12-20 PROCESS FOR THE PREPARATION OF ALCOXY-3 HYDROXY-4 BENZALDEHYDES. Expired - Lifetime FR2655983B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8917212A FR2655983B1 (en) 1989-12-20 1989-12-20 PROCESS FOR THE PREPARATION OF ALCOXY-3 HYDROXY-4 BENZALDEHYDES.
EP19900403587 EP0434516A3 (en) 1989-12-20 1990-12-14 Process for the preparation of mono- or poly-alkoxylated aromatic compounds
IE464290A IE904642A1 (en) 1989-12-20 1990-12-20 Process for the preparation of mono- or poly-alkoxylated¹aromatic compounds
JP41932190A JPH04297432A (en) 1989-12-20 1990-12-20 Method of manufacturing mono- or poly-alkoxylated aromatic compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8917212A FR2655983B1 (en) 1989-12-20 1989-12-20 PROCESS FOR THE PREPARATION OF ALCOXY-3 HYDROXY-4 BENZALDEHYDES.

Publications (2)

Publication Number Publication Date
FR2655983A1 FR2655983A1 (en) 1991-06-21
FR2655983B1 true FR2655983B1 (en) 1992-04-30

Family

ID=9388978

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8917212A Expired - Lifetime FR2655983B1 (en) 1989-12-20 1989-12-20 PROCESS FOR THE PREPARATION OF ALCOXY-3 HYDROXY-4 BENZALDEHYDES.

Country Status (1)

Country Link
FR (1) FR2655983B1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2089672A (en) * 1980-12-17 1982-06-30 Sterwin Ag Processes for substitution of aromatic compounds

Also Published As

Publication number Publication date
FR2655983A1 (en) 1991-06-21

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Legal Events

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