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IE39249L - Producing citric acid from itaconic acid; epoxide¹intermediate. - Google Patents

Producing citric acid from itaconic acid; epoxide¹intermediate.

Info

Publication number
IE39249L
IE39249L IE740940A IE94074A IE39249L IE 39249 L IE39249 L IE 39249L IE 740940 A IE740940 A IE 740940A IE 94074 A IE94074 A IE 94074A IE 39249 L IE39249 L IE 39249L
Authority
IE
Ireland
Prior art keywords
acid
citric acid
derivatives
itaconic
carbon atoms
Prior art date
Application number
IE740940A
Other versions
IE39249B1 (en
Original Assignee
Anic Spa
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 Anic Spa filed Critical Anic Spa
Publication of IE39249L publication Critical patent/IE39249L/en
Publication of IE39249B1 publication Critical patent/IE39249B1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D303/00Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02Compounds containing oxirane rings
    • C07D303/48Compounds containing oxirane rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms, e.g. ester or nitrile radicals

Landscapes

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

Abstract

1421310 Citric acid and derivatives SNAMPROGETTI SpA 1 May 1974 [9 May 1973] 19196/74 Heading C2C Citric acid and derivatives thereof are prepared by epoxidizing itaconic acid or derivatives of formula wherein each of R and R<SP>1</SP> which can be the same or different, is a hydrogen atom or a hydrocarbon radical, and either each of X and X<SP>1</SP> which can be the same or different is -CN, -COOR<SP>2</SP>, -COOM, or -CONH 2 where M is a monovalent metal atom or represents part of a metal atom having a valency of at least two and R<SP>2</SP> is a hydrogen atom or a hydrocarbon radical, or X and X<SP>1</SP> together represent a divalent radical and together with the two carbon atoms to which they are attached form a heterocyclic ring with five carbon atoms to give which is reacted with hydrocyanic acid or a cyanide, and the cyanohydrin hydrolysed. An example describes the preparation of the the trimethyl ester of citric acid through sodium salt of epoxyitaconic acid, prepared by the reaction of hydrogen peroxide on itaconic acid in the presence of sodium tungstate. [GB1421310A]
IE940/74A 1973-05-09 1974-05-02 Process for producing citric acid and derivatives thereof IE39249B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23863/73A IT987222B (en) 1973-05-09 1973-05-09 PROCESS FOR THE PREPARATION OF CITRIC ACID AND ITS DERIVATIVES

Publications (2)

Publication Number Publication Date
IE39249L true IE39249L (en) 1974-11-09
IE39249B1 IE39249B1 (en) 1978-08-30

Family

ID=11210493

Family Applications (1)

Application Number Title Priority Date Filing Date
IE940/74A IE39249B1 (en) 1973-05-09 1974-05-02 Process for producing citric acid and derivatives thereof

Country Status (24)

Country Link
JP (1) JPS5628894B2 (en)
AR (1) AR201865A1 (en)
AT (1) AT332366B (en)
BE (1) BE814615A (en)
BG (1) BG24404A3 (en)
BR (1) BR7403406D0 (en)
CH (1) CH603530A5 (en)
CS (1) CS181759B2 (en)
DD (1) DD111366A5 (en)
DE (1) DE2422376B2 (en)
EG (1) EG11325A (en)
ES (1) ES426383A1 (en)
FR (1) FR2228762B1 (en)
GB (1) GB1421310A (en)
HU (1) HU169263B (en)
IE (1) IE39249B1 (en)
IT (1) IT987222B (en)
LU (1) LU70020A1 (en)
MW (1) MW1674A1 (en)
NL (1) NL7406208A (en)
RO (1) RO63038A (en)
YU (1) YU36142B (en)
ZA (1) ZA742521B (en)
ZM (1) ZM7174A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58213895A (en) * 1982-06-07 1983-12-12 Nippon Alum Mfg Co Ltd:The Electrolytic multicolor pigmentation method of aluminum and aluminum alloy
JPS6015478U (en) * 1983-07-11 1985-02-01 トヨタ自動車株式会社 Detachment device for replacing welding guns on welding robots
JPS6130390A (en) * 1984-07-20 1986-02-12 日東精工株式会社 Positioning device for working tool of industrial robot
DE3836271A1 (en) * 1988-10-25 1990-04-26 Guenter Schmidt METHOD FOR PRODUCING (+) ISOCITRONIC ACID AND ITS DERIVATIVES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156709A (en) * 1962-03-06 1964-11-10 Du Pont Oxidation process
US3769337A (en) * 1971-08-18 1973-10-30 Ethyl Corp Process for the preparation of citric acid

Also Published As

Publication number Publication date
IE39249B1 (en) 1978-08-30
ZA742521B (en) 1975-06-25
YU36142B (en) 1982-02-25
CS181759B2 (en) 1978-03-31
BG24404A3 (en) 1978-02-10
FR2228762A1 (en) 1974-12-06
DE2422376A1 (en) 1974-11-28
AR201865A1 (en) 1975-04-24
JPS5628894B2 (en) 1981-07-04
BR7403406D0 (en) 1974-12-24
ZM7174A1 (en) 1975-02-21
GB1421310A (en) 1976-01-14
HU169263B (en) 1976-10-28
JPS5014624A (en) 1975-02-15
YU125074A (en) 1981-04-30
CH603530A5 (en) 1978-08-15
IT987222B (en) 1975-02-20
LU70020A1 (en) 1974-10-01
MW1674A1 (en) 1975-04-09
ES426383A1 (en) 1976-07-01
AT332366B (en) 1976-09-27
DE2422376B2 (en) 1979-07-05
NL7406208A (en) 1974-11-12
EG11325A (en) 1978-03-29
AU6834274A (en) 1975-10-30
FR2228762B1 (en) 1978-02-03
DD111366A5 (en) 1975-02-12
ATA379774A (en) 1976-01-15
BE814615A (en) 1974-09-02
RO63038A (en) 1978-05-15

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