ATE99T1 - Verfahren zur herstellung von dihydro-4,4-dimethyl-2,3-furandion. - Google Patents

Verfahren zur herstellung von dihydro-4,4-dimethyl-2,3-furandion.

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
English (en)
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/de

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)
AT79101658T 1978-05-30 1979-05-30 Verfahren zur herstellung von dihydro-4,4-dimethyl-2,3-furandion. ATE99T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH588378 1978-05-30
EP79101658A EP0006156B1 (de) 1978-05-30 1979-05-30 Verfahren zur Herstellung von Dihydro-4,4-dimethyl-2,3-furandion

Publications (1)

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

Family

ID=4300917

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79101658T ATE99T1 (de) 1978-05-30 1979-05-30 Verfahren zur herstellung von dihydro-4,4-dimethyl-2,3-furandion.

Country Status (5)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0050721A1 (de) * 1980-10-28 1982-05-05 F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft Verfahren zur Herstellung von Dihydro-4,4-dimethyl-2,3-furandion
ATE34744T1 (de) * 1982-02-12 1988-06-15 Hoffmann La Roche Verfahren zur herstellung von ketopantolacton.
DE3229026A1 (de) * 1982-08-04 1984-02-09 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von 4,4-dimethyl-tetrahydrofuran-2,3-dion
DE3242560A1 (de) * 1982-11-18 1984-05-24 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von dihydro-4,4-dimethyl-2,3-furandion
US6174498B1 (en) 1991-10-28 2001-01-16 Us Filter/Rj Environmental, Inc. Odor control system
WO2003091235A1 (en) * 2002-04-25 2003-11-06 Dsm Ip Assets B.V. Manufacture of ketopantolactone
US20060185517A1 (en) * 2005-02-22 2006-08-24 Nagel Daniel J Multi-stage odor scrubber
RU2461554C1 (ru) * 2011-07-19 2012-09-20 ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ УЧРЕЖДЕНИЕ НАУКИ ИНСТИТУТ ОРГАНИЧЕСКОЙ ХИМИИ им. Н.Д. ЗЕЛИНСКОГО РОССИЙСКОЙ АКАДЕМИИ НАУК (ИОХ РАН) Способ получения кетопантолактона

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD32628A (de) *
DD37505A (de) *
DD41651A (de) *
DE1033652B (de) 1954-09-09 1958-07-10 Upjohn Co Verfahren zur Spaltung von racemischem ª‡-Oxy-ª‰, ª‰-dimethyl-ª†-butyrolacton in seine d(-)- und 1(+)-Stereomeren
CH468997A (de) * 1965-04-23 1969-02-28 Hoffmann La Roche Verfahren zur Aufspaltung eines racemischen Gemisches in die optischen Antipoden
GB1183387A (en) 1966-07-19 1970-03-04 Delmar Chem Resolution of Pantolactone
DK134937C (da) * 1974-01-30 1977-07-11 Basf Ag Fremgangsmade til racematspaltning af pantolacton
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
EP0006156B1 (de) 1981-07-01
DE2960443D1 (en) 1981-10-08
US4225506A (en) 1980-09-30
JPS54160363A (en) 1979-12-19
EP0006156A1 (de) 1980-01-09

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Legal Events

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