DD99368A1 - - Google Patents

Info

Publication number
DD99368A1
DD99368A1 DD15840971A DD15840971A DD99368A1 DD 99368 A1 DD99368 A1 DD 99368A1 DD 15840971 A DD15840971 A DD 15840971A DD 15840971 A DD15840971 A DD 15840971A DD 99368 A1 DD99368 A1 DD 99368A1
Authority
DD
German Democratic Republic
Application number
DD15840971A
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 filed Critical
Priority to DD15840971A priority Critical patent/DD99368A1/xx
Priority to DE19722228641 priority patent/DE2228641B2/de
Priority to RO7252272A priority patent/RO64159A/ro
Priority to CH1514272A priority patent/CH577987A5/xx
Priority to HUJE000537 priority patent/HU164765B/hu
Priority to FR7236898A priority patent/FR2156791A1/fr
Priority to PL15832972A priority patent/PL94404B1/pl
Priority to SU721839389A priority patent/SU706099A1/ru
Publication of DD99368A1 publication Critical patent/DD99368A1/xx
Priority to BE155772A priority patent/BE828390Q/xx

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
    • C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member 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
    • C07D307/32—Oxygen atoms
    • C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • B01J19/2435—Loop-type reactors
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/08—Preparation of carboxylic acids or their salts, halides or anhydrides from nitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DD15840971A 1971-10-19 1971-10-19 DD99368A1 (xx)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DD15840971A DD99368A1 (xx) 1971-10-19 1971-10-19
DE19722228641 DE2228641B2 (de) 1971-10-19 1972-06-13 Verfahren und vorrichtung zur kontinuierlichen herstellung von dl-alpha- hydroxy-beta, beta-dimethyl-gamma-butyrolacton (dl-pantolacton)
RO7252272A RO64159A (fr) 1971-10-19 1972-10-16 Procede et installation pour la preparation du dl-alpha-hydroxy-beta,beta-dimethyle gamma-butirolactame en systeme continu
CH1514272A CH577987A5 (xx) 1971-10-19 1972-10-17
HUJE000537 HU164765B (xx) 1971-10-19 1972-10-17
FR7236898A FR2156791A1 (en) 1971-10-19 1972-10-18 Continuous prodn of dl-alpha-hydroxy-beta, beta-dimethyl - - gamma-butyrolactone - from isobutyraldehyde and formalin
PL15832972A PL94404B1 (pl) 1971-10-19 1972-10-18 Sposob wytwarzania dl-hydroksy-,-dwumetylo-butyrolaktonu metoda ciagla i urzadzenie do wytwarzania dl-hydroksy-,-dwumetylo-butyrolaktonu metoda ciagla
SU721839389A SU706099A1 (ru) 1971-10-19 1972-10-18 Устройство дл непрерывного производства д - гидроокись , -диметил бутиролактона
BE155772A BE828390Q (fr) 1971-10-19 1975-04-25 Procede et installation pour la preparation en continu de la di-alpha-hydroxy beta, beta-dimethyl-alpha-butyrolactone (dl-pantolactone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15840971A DD99368A1 (xx) 1971-10-19 1971-10-19

Publications (1)

Publication Number Publication Date
DD99368A1 true DD99368A1 (xx) 1973-08-13

Family

ID=5484467

Family Applications (1)

Application Number Title Priority Date Filing Date
DD15840971A DD99368A1 (xx) 1971-10-19 1971-10-19

Country Status (9)

Country Link
BE (1) BE828390Q (xx)
CH (1) CH577987A5 (xx)
DD (1) DD99368A1 (xx)
DE (1) DE2228641B2 (xx)
FR (1) FR2156791A1 (xx)
HU (1) HU164765B (xx)
PL (1) PL94404B1 (xx)
RO (1) RO64159A (xx)
SU (1) SU706099A1 (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758883C3 (de) * 1977-12-30 1981-10-08 Basf Ag, 6700 Ludwigshafen Verfahren zur kontinuierlichen Herstellung von α-Hydroxy-β,β-dimethyl-γ-butyrolacton
DE2809179A1 (de) * 1978-03-03 1979-09-13 Basf Ag Verfahren zur extraktion von pantolacton aus seinen waessrigen loesungen
US4517132A (en) * 1983-06-29 1985-05-14 Union Carbide Corporation Process for preparation of cyanohydrins
ATE340156T1 (de) 2000-06-02 2006-10-15 Nippon Catalytic Chem Ind Verfahren zur herstellung von alpha- hydroxycarbonsäure

Also Published As

Publication number Publication date
HU164765B (xx) 1974-04-11
DE2228641B2 (de) 1976-09-09
CH577987A5 (xx) 1976-07-30
DE2228641A1 (de) 1973-04-26
BE828390Q (fr) 1975-08-18
PL94404B1 (pl) 1977-08-31
RO64159A (fr) 1978-10-15
FR2156791A1 (en) 1973-06-01
FR2156791B1 (xx) 1977-04-01
SU706099A1 (ru) 1979-12-30

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