ATE99T1 - PROCESS FOR THE PRODUCTION OF DIHYDRO-4,4-DIMETHYL-2,3-FURANDIONE. - Google Patents

PROCESS FOR THE PRODUCTION OF DIHYDRO-4,4-DIMETHYL-2,3-FURANDIONE.

Info

Publication number
ATE99T1
ATE99T1 AT79101658T AT79101658T ATE99T1 AT E99 T1 ATE99 T1 AT E99T1 AT 79101658 T AT79101658 T AT 79101658T AT 79101658 T AT79101658 T AT 79101658T AT E99 T1 ATE99 T1 AT E99T1
Authority
AT
Austria
Prior art keywords
dimethyl
dihydro
furandione
production
metal hypochlorite
Prior art date
Application number
AT79101658T
Other languages
German (de)
Inventor
Max Schmid
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Application granted granted Critical
Publication of ATE99T1 publication Critical patent/ATE99T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/60—Two oxygen atoms, e.g. succinic anhydride

Landscapes

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

Abstract

A process for producing dihydro-4,4-dimethyl-2,3-furandione by oxidizing dihydro-3-hydroxy-4,4-dimethyl-2(3H)-furanone with a solid alkali metal hypochlorite or alkaline earth metal hypochlorite in an organic phase is disclosed.
AT79101658T 1978-05-30 1979-05-30 PROCESS FOR THE PRODUCTION OF DIHYDRO-4,4-DIMETHYL-2,3-FURANDIONE. ATE99T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH588378 1978-05-30
EP79101658A EP0006156B1 (en) 1978-05-30 1979-05-30 A process for the preparation of dihydro-4,4-dimethyl-2,3-furandion

Publications (1)

Publication Number Publication Date
ATE99T1 true ATE99T1 (en) 1981-07-15

Family

ID=4300917

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79101658T ATE99T1 (en) 1978-05-30 1979-05-30 PROCESS FOR THE PRODUCTION OF DIHYDRO-4,4-DIMETHYL-2,3-FURANDIONE.

Country Status (5)

Country Link
US (1) US4225506A (en)
EP (1) EP0006156B1 (en)
JP (1) JPS54160363A (en)
AT (1) ATE99T1 (en)
DE (1) DE2960443D1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050721A1 (en) * 1980-10-28 1982-05-05 F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft Process for preparing dihydro-4,4-dimethyl-2,3 furan-dione
DE3376830D1 (en) * 1982-02-12 1988-07-07 Hoffmann La Roche Process for preparing ketopantolactone
DE3229026A1 (en) * 1982-08-04 1984-02-09 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING 4,4-DIMETHYL-TETRAHYDROFURAN-2,3-DION
DE3242560A1 (en) * 1982-11-18 1984-05-24 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING DIHYDRO-4,4-DIMETHYL-2,3-FURANDION
US6174498B1 (en) 1991-10-28 2001-01-16 Us Filter/Rj Environmental, Inc. Odor control system
CN1332956C (en) * 2002-04-25 2007-08-22 Dsmip资产有限公司 Preparation method of ketopantothenate
US20060185517A1 (en) * 2005-02-22 2006-08-24 Nagel Daniel J Multi-stage odor scrubber
RU2461554C1 (en) * 2011-07-19 2012-09-20 ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ УЧРЕЖДЕНИЕ НАУКИ ИНСТИТУТ ОРГАНИЧЕСКОЙ ХИМИИ им. Н.Д. ЗЕЛИНСКОГО РОССИЙСКОЙ АКАДЕМИИ НАУК (ИОХ РАН) Method of producing ketopantolactone

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD37505A (en) *
DD32628A (en) *
DD41651A (en) *
DE1033652B (en) 1954-09-09 1958-07-10 Upjohn Co Process for the resolution of racemic ª ‡ -oxy-ª ‰, ª ‰ -dimethyl-ª † -butyrolactone into its d (-) - and 1 (+) - stereomers
CH468997A (en) * 1965-04-23 1969-02-28 Hoffmann La Roche Process for the resolution of a racemic mixture into the optical antipodes
GB1183387A (en) 1966-07-19 1970-03-04 Delmar Chem Resolution of Pantolactone
DK134937C (en) * 1974-01-30 1977-07-11 Basf Ag PROCEDURE FOR PANTOLACTONE RACEMATIC DECOMPOSITION
US3996259A (en) * 1975-11-06 1976-12-07 The Dow Chemical Company Oxidation of organic compounds by aqueous hypohalites using phase transfer catalysis
US4062868A (en) * 1977-02-23 1977-12-13 Hoffmann-La Roche Inc. Synthesis of biotin

Also Published As

Publication number Publication date
EP0006156A1 (en) 1980-01-09
DE2960443D1 (en) 1981-10-08
JPS54160363A (en) 1979-12-19
EP0006156B1 (en) 1981-07-01
US4225506A (en) 1980-09-30

Similar Documents

Publication Publication Date Title
DK153500C (en) PROCEDURE FOR PREPARING FRUCTOSE
SE7710744L (en) WAY TO PRODUCE XYLOS BY ENZYMATIC HYDROLYSIS OF XYLANES
ATE157400T1 (en) FERMENTATION PROCESS FOR PRODUCING 2-KETO-L-GULONIC ACID
ATE99T1 (en) PROCESS FOR THE PRODUCTION OF DIHYDRO-4,4-DIMETHYL-2,3-FURANDIONE.
JPS53114601A (en) Voice recognition system
SE8401408D0 (en) LIGNOSULFONATDERIVAT
NO894359L (en) CONTINUOUS PROCEDURE FOR THE PREPARATION OF ALKALIMETAL METAL PERCHLORATE.
ATE2685T1 (en) PRODUCTION OF 2-KETO-L-GULONIC ACID.
FI813289L (en) PHOSPHONOHYDROXIACETONITRIL FOERFARANDE FOER DESS FRAMSTAELLNING OCH DESS ANVAENDNING SOM MELLANPROTUKT VID FRAMSTAELLNING AV LAEKEMEDEL
FR2151556A5 (en)
ATE32718T1 (en) PROCESS FOR THE PRODUCTION OF (S)GLYCERALDEHYDACETONIDE.
ATE22689T1 (en) PROCESS FOR THE PRODUCTION OF DIHYDRO-4,4DIMETHYL-2,3-FURANDIONE.
DK139641B (en) Plant for the production of cement by the dry-manufacturing method.
JPS5282774A (en) Decomposition of polyesters
JPS5250000A (en) Method for producing fibrous alkali tianate
SE7907807L (en) IMPROVES METHOD OF PRODUCING ASCORBIC ACID
JPS5430128A (en) Preparation of water impregnated substance of diperisophthalic acid tent-butyl ester
KR850005836A (en) Method for preparing 2 (3H) -benzthiazolone substituted with 3-position
GB926804A (en) Production of glycerine
NO771133L (en) Process for the production of formic acid.
JPS5214917A (en) Constructing method of double shell tank
SE7713979L (en) METHOD OF PREPARING A MIXTURE OF 2-KETOGULONATE AND 2-KETOGLUCONATE
KR870003121A (en) Process for preparing 6-aminophenicylanic acid 1,1-dioxide by oxidation of 6-aminophenicylanic acid
BE608291A (en) A method of producing molecular sieve bodies.
JPS54109961A (en) Production of tetrahydro-2-furanol

Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee