GB2080823A - Method of obtaining 4,4-dimethyl-1,3-dioxane - Google Patents

Method of obtaining 4,4-dimethyl-1,3-dioxane

Info

Publication number
GB2080823A
GB2080823A GB8129442A GB8129442A GB2080823A GB 2080823 A GB2080823 A GB 2080823A GB 8129442 A GB8129442 A GB 8129442A GB 8129442 A GB8129442 A GB 8129442A GB 2080823 A GB2080823 A GB 2080823A
Authority
GB
United Kingdom
Prior art keywords
salt
acid
dioxane
dimethyl
obtaining
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.)
Withdrawn
Application number
GB8129442A
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.)
BREIMANN OLGA MARKOVNA
PUGACH LJUDMILA MENDELEVNA
SIMIKOV JURY ARKADIEVICH
Original Assignee
BREIMANN OLGA MARKOVNA
PUGACH LJUDMILA MENDELEVNA
SIMIKOV JURY ARKADIEVICH
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 BREIMANN OLGA MARKOVNA, PUGACH LJUDMILA MENDELEVNA, SIMIKOV JURY ARKADIEVICH filed Critical BREIMANN OLGA MARKOVNA
Publication of GB2080823A publication Critical patent/GB2080823A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
    • C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings

Landscapes

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

Abstract

This method is used for production of isoprene which serves as a raw material for synthetic rubber. The method consists in reacting isobutylene with an aqueous solution of formaldehyde within the interval of temperatures of 60 to 90`C, at a pressure of 6 to 18 atm and in the presence of a salt of polysulphonic acid of formula R(SO<u3>uH)n as an acid catalyst, where n is an integer equal to 2 or 3, R is a C<u1>u-C<u4>u alkyl or unsubstituted phenyl or substituted phenyl, and a metal of groups I and II of the periodic system or a mixture of that salt with sulphonic acid.
GB8129442A 1980-02-13 1980-02-13 Method of obtaining 4,4-dimethyl-1,3-dioxane Withdrawn GB2080823A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1980/000020 WO1981002297A1 (en) 1980-02-13 1980-02-13 Method of obtaining 4,4-dimethyl-1,3-dioxane

Publications (1)

Publication Number Publication Date
GB2080823A true GB2080823A (en) 1982-02-10

Family

ID=21616587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8129442A Withdrawn GB2080823A (en) 1980-02-13 1980-02-13 Method of obtaining 4,4-dimethyl-1,3-dioxane

Country Status (4)

Country Link
JP (1) JPS57500103A (en)
DE (1) DE3050263A1 (en)
GB (1) GB2080823A (en)
WO (1) WO1981002297A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2277084A1 (en) * 1974-07-01 1976-01-30 Volg Politekhn In 4,4-Dimethyl-1,3-dioxan prepn. - by reacting formaldehyde, isobutylene and acidic salt catalyst
GB1418608A (en) * 1974-07-01 1975-12-24 Volgogradsky Politekh Inst Method of preparing 4,4-dimethyl-1,3-dioxan

Also Published As

Publication number Publication date
DE3050263A1 (en) 1982-04-15
WO1981002297A1 (en) 1981-08-20
JPS57500103A (en) 1982-01-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)