GB747277A - A process for the preparation of 1, 3, 5-cycloheptatriene and derivatives thereof - Google Patents

A process for the preparation of 1, 3, 5-cycloheptatriene and derivatives thereof

Info

Publication number
GB747277A
GB747277A GB203/54A GB20354A GB747277A GB 747277 A GB747277 A GB 747277A GB 203/54 A GB203/54 A GB 203/54A GB 20354 A GB20354 A GB 20354A GB 747277 A GB747277 A GB 747277A
Authority
GB
United Kingdom
Prior art keywords
heptadiene
phenylbicyclo
methyl
cycloheptatriene
dimethylbicyclo
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
GB203/54A
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.)
Bataafsche Petroleum Maatschappij NV
Original Assignee
Bataafsche Petroleum Maatschappij NV
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 Bataafsche Petroleum Maatschappij NV filed Critical Bataafsche Petroleum Maatschappij NV
Publication of GB747277A publication Critical patent/GB747277A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/31—Rearrangement of carbon atoms in the hydrocarbon skeleton changing the number of rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/35—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction
    • C07C17/358—Preparation of halogenated hydrocarbons by reactions not affecting the number of carbon or of halogen atoms in the reaction by isomerisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/18—Systems containing only non-condensed rings with a ring being at least seven-membered

Landscapes

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

Abstract

A process for converting a bicyclo-(2,2,1)-2,5-heptadiene compound into the isomeric 1,3,5-cycloheptatriene compound comprises subjecting the heptadiene to thermal isomerization at an elevated temperature which is below that at which the principal isomerizate formed is an aromatic compound. Preferred temperatures for isomerization are 425-475 DEG C. for 1 to 10 seconds for hydrocarbons, and 195-315 DEG C. for chlorocompounds. Pressures of 5 to about 250 lbs. absolute may be used. Specified starting compounds are bicyclo - (2,2,1) - 2,5 - heptadiene, 1 - methylbicyclo - (2,2,1) - 2,5-heptadiene, 2 - methylbicyclo - (2,2,1) - 2,5-heptadiene, 2,5- and 2,6-dimethylbicyclo-(2,2,1) - 2,5 - heptadiene, 2,3 - dimethylbicyclo - (2,2,1) - 2,5 - heptadiene, 1,2,3 - trimethylbicyclo - (2,2,1) - 2,5 - heptadiene, 2 - methyl - 3 - propylbicyclo - (2,2,1) - 2,5 - heptadiene, 2 - hexyl - (2,2,1) - 2,5 - heptadiene, 2 - phenylbicyclo - (2,2,1 - 2,5 - heptadiene, 2 - methyl - 6 - phenylbicyclo - (2,2,1) - 2,5 - heptadiene, 1 - methyl - 2 - phenylbicyclo - (2,2,1) - 2,5 - heptadiene, tetracyclododeca - 2,6 - diene, 1,2,3,4,7,7 - hexachlorobicyclo - (2,2,1) - 2,5 - heptadiene. Specification 701,211 is referred to.
GB203/54A 1953-01-06 1954-01-04 A process for the preparation of 1, 3, 5-cycloheptatriene and derivatives thereof Expired GB747277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US747277XA 1953-01-06 1953-01-06

Publications (1)

Publication Number Publication Date
GB747277A true GB747277A (en) 1956-03-28

Family

ID=22121304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB203/54A Expired GB747277A (en) 1953-01-06 1954-01-04 A process for the preparation of 1, 3, 5-cycloheptatriene and derivatives thereof

Country Status (1)

Country Link
GB (1) GB747277A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170362A (en) * 1958-08-08 1965-02-23 Avdel Ltd Ball detent coupling device with ring shaped friction means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170362A (en) * 1958-08-08 1965-02-23 Avdel Ltd Ball detent coupling device with ring shaped friction means

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