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Class 585/371 - By ring expansion or contraction


Subclass of Class 585 - Chemistry of hydrocarbon compounds
Definition: Subject matter wherein a ring is made smaller or larger.
No. of patents: 15
Last issue date: 07/24/2007


NumberTitleIssue Date
7247289Porous aluminum fluoride
A porous aluminum fluoride on which SbClxF5-x (wherein x represents a numeral of 0 to 5) is supported, SbClxF5-x being obtainable by supporting SbCl5, or the like on a porous aluminum fluoride and treating it wi...
07/24/2007
4655484Isomerization process
A hexanes stream, including normal hexane, isohexanes, methylcyclopentane and cyclohexane is isomerized by first fractionating the hexanes stream in a first fractionation step to produce a normal hexaneisohexanes rich overhead stream and a methylcyclopent...
04/07/1987
4508930Process for the conversion of terpenes to limonene
There is disclosed a process for the conversion of terpenes to limonene which comprises contacting at least one terpene, selected from the group comprised of mono- and bi-cyclic unsaturated hydrocarbons having the formula C10 H16 wit...
04/02/1985
4368141Olefin disproportionation and catalyst therefor
A novel disproportionation catalyst comprising the product resulting from the combination of elemental sulfur and a disproportionation catalyst consisting essentially of a refractory oxide containing molybdenum oxide or tungsten oxide....
01/11/1983
4327233Method for producing carbocyclic compounds from cyclic sulfide
A method is provided for producing a carbocyclic compound by contacting an rganic compound containing a 4-8 membered cyclic sulfide with ozone, in the vapor phase, and recovering a product containing a 3-7 membered carbocyclic ring....
04/27/1982
4105704Method for preparing and using a soluble metal pentafluoride-hydrogen fluoride catalyst
A soluble HF/TaF5 catalyst is prepared in the absence of an organic solvent according to the steps of: (1) contacting tantalum metal with substantially anhydrous liquid HF to form soluble TaF5, the amount of HF being sufficient to maintai...
08/08/1978
4100213Isomerization with catalyst of graphite containing intercalated acid and fluoride
Intercalation of a Lewis acid fluoride in graphite is effected in the presence of gaseous fluorine. The reaction results in new compositions useful as catalysts and as atmospheric pressure containers for normally gaseous Lewis acid fluorides....
07/11/1978
4059643Process for hydride transfer reduction rearrangement of 8-exo-hydroxymethyl-endo-tricyclo [5.2.1.02,6 ] decane to form tricyclo [5.3.1.03,8 ] undecane
The hydride transfer reduction rearrangement of 8-exo-hydroxymethyl-endo-tricyclo [5.2.1.02,6 ] decane in the presence of concentrated sulfuric acid and a hydride source provides 4-homoisotwistane (tricyclo [5.3.1.03,8 ] undecane)....
11/22/1977
4048251Autorefrigerated isomerization process
Acyclic and alicyclic aliphatic hydrocarbons are isomerized to form a product of enhanced octane by contacting same, in a reaction zone and in the presence of hydrogen, with a catalyst comprising a difficultly reducible metal halide in combination with at...
09/13/1977
4024052Hydrocarbon conversion with an acidic multimetallic catalytic composite
Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a lanthanide series component, a...
05/17/1977
4018668Hydrocarbon conversion with an acidic multimetallic sulfur-free catalytic composite
Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic sulfur-free catalytic composite comprising a combination of catalytically effective and specially selected amounts of a platinum group componen...
04/19/1977
3976710Process for the preparation of tricyclo[5.3.1.03,8 ]undecane
A process for the preparation of tricyclo[5.3.1.03,8 ]undecane which comprises isomerizing 5,6-exo-trimethylenenorbornyl-2-carbinol in the presence of an acid catalyst and a hydride donor....
08/24/1976
3976709Process for the preparation of tricyclo[5.3.1.03,8 ]undecane
A process for the preparation of tricyclo[5.3.1.03,8 ]-undecane in which 6,7-endo-trimethylenebicyclo[3.2.1]octane is isomerized in the presence of an acid catalyst....
08/24/1976
3976707Process for the preparation of tricyclo [5.3.1.03,8 ] undecane
A process for the preparation of tricyclo [5.3.1.03,8 ]-undecane, in which endo-tetramethylenenorbornane is isomerized in the presence of an acid catalyst....
08/24/1976
3962133Graphite intercalation
Intercalation of a Lewis acid fluoride in graphite is effected in the presence of gaseous fluorine. The reaction results in new compositions useful as catalysts and as atmospheric pressure containers for normally gaseous Lewis acid fluorides....
06/08/1976
 
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