GB1076346A - Vinyl-alkenyl-cyclobutanes - Google Patents

Vinyl-alkenyl-cyclobutanes

Info

Publication number
GB1076346A
GB1076346A GB40022/65A GB4002265A GB1076346A GB 1076346 A GB1076346 A GB 1076346A GB 40022/65 A GB40022/65 A GB 40022/65A GB 4002265 A GB4002265 A GB 4002265A GB 1076346 A GB1076346 A GB 1076346A
Authority
GB
United Kingdom
Prior art keywords
butadiene
trans
cyclobutanes
alkenyl
vinyl
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.)
Expired
Application number
GB40022/65A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica 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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB1076346A publication Critical patent/GB1076346A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
    • C07C13/02—Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
    • C07C13/06—Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a four-membered ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/42—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons homo- or co-oligomerisation with ring formation, not being a Diels-Alder conversion
    • C07C2/44—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons homo- or co-oligomerisation with ring formation, not being a Diels-Alder conversion of conjugated dienes only
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/04—Systems containing only non-condensed rings with a four-membered ring

Landscapes

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

Abstract

Vinyl-alkenyl-cyclobutanes of the formula <FORM:1076346/C4-C5/1> in which each R is H or CH3 provided at least one R is H and at least one R is CH3, are obtained by codimerizing butadiene with a C5 or C6 conjugated diene at -20 DEG to +20 DEG C. with ultraviolet radiation in the presence of a sensitizer. The conjugated diene may be isoprene which gives trans - 1,2 - divinyl - 1 - methylcyclo-butane and trans-1-isopropenyl-2-vinylcyclo-butane, piperylene which gives trans-1-propenyl - 2 - vinylcyclobutane or 2,3-dimethyl-butadiene which gives trans-1-methyl-1-isopropenyl-2-vinylcyclobutane, and is used in a molar ratio to butadiene of 1: 1 to 1.5: 5. The sensitizer is a carbonyl compound.ALSO:Vinylalkenylcyclobutanes of the formula <FORM:1076346/C3/1> in which each R is H or CH3 provided at least one is H and at least one is CH3, can be homopolymerized or copolymerized e.g. to form a terpolymer with ethylene and propylene which is vulcanizable with sulphur and accelerators.
GB40022/65A 1964-09-29 1965-09-20 Vinyl-alkenyl-cyclobutanes Expired GB1076346A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2109164 1964-09-29
IT1224765 1965-02-19
IT350965 1965-06-01

Publications (1)

Publication Number Publication Date
GB1076346A true GB1076346A (en) 1967-07-19

Family

ID=27272585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40022/65A Expired GB1076346A (en) 1964-09-29 1965-09-20 Vinyl-alkenyl-cyclobutanes

Country Status (4)

Country Link
DE (1) DE1230793B (en)
FR (1) FR1447878A (en)
GB (1) GB1076346A (en)
NL (1) NL6510694A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1643063B1 (en) * 1967-04-08 1972-03-16 Studiengesellschaft Kohle Mbh Process for the cyclodimerization of 1,3-diolefins using nickel-containing catalysts
US3692854A (en) * 1971-03-22 1972-09-19 Shell Oil Co Cyclodimerization process

Also Published As

Publication number Publication date
DE1230793B (en) 1966-12-22
NL6510694A (en) 1966-03-30
FR1447878A (en) 1966-07-29

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