AU5843594A - Process for separating the ortho- and para- isomers of hydroxymandelic acid or a salt thereof, the isomers thus obtained, the use of the ortho-isomer for the preparation ofeddha - Google Patents

Process for separating the ortho- and para- isomers of hydroxymandelic acid or a salt thereof, the isomers thus obtained, the use of the ortho-isomer for the preparation ofeddha

Info

Publication number
AU5843594A
AU5843594A AU58435/94A AU5843594A AU5843594A AU 5843594 A AU5843594 A AU 5843594A AU 58435/94 A AU58435/94 A AU 58435/94A AU 5843594 A AU5843594 A AU 5843594A AU 5843594 A AU5843594 A AU 5843594A
Authority
AU
Australia
Prior art keywords
ortho
isomers
ofeddha
isomer
para
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.)
Abandoned
Application number
AU58435/94A
Inventor
Anthonius Johannes Hoefnagel
Herman Van Bekkum
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.)
Technische Universiteit Delft
Original Assignee
Technische Universiteit Delft
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 Technische Universiteit Delft filed Critical Technische Universiteit Delft
Publication of AU5843594A publication Critical patent/AU5843594A/en
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B57/00—Separation of optically-active compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AU58435/94A 1992-12-23 1993-12-23 Process for separating the ortho- and para- isomers of hydroxymandelic acid or a salt thereof, the isomers thus obtained, the use of the ortho-isomer for the preparation ofeddha Abandoned AU5843594A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL9202248 1992-12-23
NL9202248A NL9202248A (en) 1992-12-23 1992-12-23 Process for separating the ortho and para isomer of hydroxymandelic acid or a salt thereof, the ortho and para isomer of hydroxymandelic acid obtained by this method, and the use of the ortho isomer in the preparation of EDDHA.
PCT/NL1993/000277 WO1994014746A1 (en) 1992-12-23 1993-12-23 Process for separating the ortho- and para- isomers of hydroxymandelic acid or a salt thereof, the isomers thus obtained, the use of the ortho-isomer for the preparation of eddha

Publications (1)

Publication Number Publication Date
AU5843594A true AU5843594A (en) 1994-07-19

Family

ID=19861679

Family Applications (1)

Application Number Title Priority Date Filing Date
AU58435/94A Abandoned AU5843594A (en) 1992-12-23 1993-12-23 Process for separating the ortho- and para- isomers of hydroxymandelic acid or a salt thereof, the isomers thus obtained, the use of the ortho-isomer for the preparation ofeddha

Country Status (3)

Country Link
AU (1) AU5843594A (en)
NL (1) NL9202248A (en)
WO (1) WO1994014746A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2779718B1 (en) * 1998-06-16 2000-12-29 Rhodia Chimie Sa PROCESS FOR THE PREPARATION OF P-HYDROXYMANDELIC COMPOUNDS, WHETHER POSSIBLE SUBSTITUTED AND DERIVATIVES
NL1010090C2 (en) * 1998-09-15 2000-03-17 Gerard Kessels Sociedad Anonim Process for the preparation of 2- and 4-hydroxymandelic acid.
AU2001210522A1 (en) * 2000-07-27 2002-02-13 Department Of Science And Technology (Dst) A process for separating o- and p-substituted benzene compounds

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE3408T1 (en) * 1979-08-09 1983-06-15 Beecham Group Plc PROCESS FOR THE DEPOSITION OF A SOLID SALT OF P-HYDROXYMANDELIC ACID; SOME SALTS OF PHYDROXYMANDELS[URE.
JPS55102537A (en) * 1980-01-16 1980-08-05 Nippon Synthetic Chem Ind Co Ltd:The Preparation of 4-hydroxymandelic acid
JPS56110643A (en) * 1980-02-05 1981-09-01 Ube Ind Ltd Separating method of 4-hydroxymandelic acid

Also Published As

Publication number Publication date
WO1994014746A1 (en) 1994-07-07
NL9202248A (en) 1994-07-18

Similar Documents

Publication Publication Date Title
AU1604292A (en) A process for the production of a protein granule suitable for use as a meat extender
AU6890591A (en) Quinazoline-3-alkanoic acid derivative, salt thereof, and production thereof
EP0566468A3 (en) Process for the preparation of a biphenyl derivative.
AU3548993A (en) Novel alkylenediammonium diclavulanate derivatives, a process for the preparation thereof as well as the use thereof
EP0468684A3 (en) Propenoic acid derivatives, process for their preparation and their use as fungicides
MX9206756A (en) IMPROVED PROCESS FOR THE PRODUCTION OF INTERMEDIATE PHASE FISH.
AU1088892A (en) Hydrazone compounds, processes for their production, intermediates useful for their production and pesticidal compositions containing them
AU1665088A (en) New compounds, processes for their preparation and uses thereof
AU5156090A (en) Process for the production of dinitrotoluene using an inorganic salt as a phase separation agent
AU6116490A (en) Process for recovering sulfuric acid
HU901428D0 (en) Process for the preparation of 5-substituted 1,4-dihydro-4-oxo-naphthiridine-3-carboxylic acid derivatives
AU5843594A (en) Process for separating the ortho- and para- isomers of hydroxymandelic acid or a salt thereof, the isomers thus obtained, the use of the ortho-isomer for the preparation ofeddha
AU1383692A (en) A process for the preparation of 2,6-difluoroaniline from 1,2,3-trichlorobenzene
AU576911B2 (en) Recovering 2,6-dichlorotoluene from isomers using 2sm-5 zeolite
AU3213593A (en) Process for the preparation of 1,1,1,2-tetrafluoroethane
AU9004591A (en) 1,4-benzothiazine-2-acetic acid derivatives, processes for production thereof
AU5992990A (en) 14,17alpha-etheno- and -ethanoestratrienes, processes for the preparation of these compounds, as well as their use for the production of medicinal agents
AU4545289A (en) 2-azabicyclo(2.2.1)hept-5-ene-2-acetic acid, derivatives thereof and related compounds, process for the preparation of said compounds and the use of said compounds for the manufacture of n-phosphonomethylglycine
MX9200841A (en) IMPROVED PROCESS FOR THE PREPARATION OF DINITROTOLUENE.
AU1745288A (en) Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid
FI894119A (en) Process for the preparation of trisodium salt of isoserine-N, N-dietetic acid
AU1819792A (en) A microbiological process for the preparation of 5-hydroxypyrazinoic acid
GB2272218B (en) Process for the preparation of 2,4,6-triiodo-isophthalic acid bis-(1,3-dihydroxypropylamide) derivatives
EP0700900A4 (en) Process for producing acyloxybenzenesulfonic acid or salt thereof
AU3861189A (en) Methods for the preparation of brominated intermediates