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7019183 Process for producing adamantane compound  
It is made possible to efficiently produce adamantane and analogues thereof, namely a hydrocarbon having an adamantane structure by a process which comprises isomerizing a tricyclic saturated...
6566570 Process for preparing cyclic monomers  
A process for producing an unsaturated cyclic compound, comprising the steps of hydrochlorinating a terpene to produce a hydrochlorinated terpene, and subjecting the hydrochlorinate terpene to...
6512152 Tetracyclododecene compositions and process for producing the same  
The present invention is drawn to a tetracyclododecene composition having a regulated cyclopentadiene trimer content, whereby addition polymerization with the aid of a Ziegler catalyst can be...
6479719 Method and reactor for making norbornene  
This process for the manufacture of norbornene from dicyclopentadiene (DCPD) and ethylene is characterized in that the DCPD is subjected to partial monomerization to CPD by preheating: at a...
6465703 Process for the continuous preparation of tetracyclododecens  
The present invention relates to a process for the preparation of tetracyclododecenes, which can be a raw material of cycloolefin (co)polymers possessing excellent characters concerning their...
6417405 Synthesis of cyclopentadiene or substituted cyclopentadiene compounds  
Substituted or unsubstituted cyclopentadienyl are prepared by reducing 4-ketocyclopentene to an alcohol, replacing the hydroxyl functionality with a leaving group and deprotonating the resulting...
6414206 Process for preparing bisindenylalkanes  
The present invention relates to a process for preparing bisindenylalkanes of formula I: wherein R 1 , R 2 , R 3 , and R 4 independently represent H or a C 1 -C 6 hydrocarbon group or R 1 and...
6380450 Process for producing indene  
Tetrahydroindene is dehydrogenated in a vapor phase in the presence of a metallic catalyst, e.g., a nickel-molybdenum catalyst, to produce indene, which is industrially useful in high yield while...
6268518 Metallocene compounds and their use in catalysts for the polymerization of olefins  
It is disclosed a new class of bridged metallocene compounds of formula (I): ##STR1## wherein R 1 and R 2 can be hydrogen, alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl radicals; R 3 and R 4 ...
6242413 Bicyclic aldehyde and ketone odorants  
The invention relates to bicyclic aldehydes and ketones of formula (I): ##STR1## wherein n is 1 or 2; R 1 and R 4 are independently H or CH 3 ; and R 2 and R 3 are independently H,...
6162937 Process for preparing cyclopentadienyl compounds  
A process for preparing bis-cyclopentadienyl compounds bridged by a methylene group is reported, said process comprising reacting formaldehyde with a cyclopentadienyl compound in the presence of a...
5888741 Computer-based design and screening of molecules using DNA interactions  
It has been discovered that the degree of hormonal activity of candidate ligands correlates better with degree of fit into DNA than with the strength of receptor binding, and that the receptors in...
5866706 Preparation and separation of RAC and MESO compound mixtures  
Utilization of thermodynamic ratios to produce pure rac and pure meso isomers or a mixture thereof.
5847247 Terpene-based solvents  
The specification discloses terpene-based solvent compositions which comprise diterpenes as a major component and a minor amount of monoterpenes. The mixtures exhibit solvent properties similar to...
5763717 Process for preparing hydroxybiphenyl  
A description is given of the preparation of hydroxybiphenyl by dehydrogenation of completely or partially hydrogenated precursors using a supported Rh catalyst which additionally contains...
5723709 Terpene dimer compositions and related methods of manufacture  
Terpene dimer compositions are provided which dry into a hard, tack free film upon exposure to air. The compositions include a terpene dimer having the molecular formula C 20 H 32 and contain at...
5723708 Method for producing cyclopentadienes  
A method for producing cyclopentadienes which comprises the step of cyclodehydration of an unsaturated carbonyl compound having a specific chemical structure in a vapor phase in the presence of a...
5670683 Racemic metallocene complexes and their preparation  
Cyclopentadineyl compounds of the formula II ##STR1## and formula III ##STR2## their preparation and their use as intermediates in the preparation of metallocene complexes of the formula I.
5670681 Process for preparing a carbon-bridged biscyclopentadiene compound  
The present invention relates to a process for preparing a carbon-bridged biscyclopentadiene compound by reacting one or two cyclopentadiene compounds LH with a carbonyl compound in the presence of...
5608131 Pentacyclic hydrocarbon compound and halogenated pentacyclic hydrocarbon compound, and preparation processes thereof  
A process for the preparation of the compound of the formula ##STR1## comprising dimerizing norbornadiene in the presence of N-methylpiperidine and a combined catalyst of...
5581004 Preparation and use of (2-butene-1,4-diyl) magnesium complexes in organic synthesis  
The magnesium complexes of cyclic hydrocarbons and conjugated dienes, such as 1,2-dimethylenecycloalkanes and 1,3-butadienes, are readily prepared in high yields using highly reactive magnesium....
5449847 Selective conversion of benzene to tercyclohexane  
There is provided a process for preparing tercyclohexane by reacting benzene with hydrogen. The process involves the use of a catalyst comprising an acidic solid and a hydrogenation component. The...
5446225 Palladium catalyzed akylative cyclization useful in syntheses of Vitamin D and analogues  
An alkylative cycloaddition method is provided that is particularly useful for the synthesis of many of the Vitamin D analogues with differing side chains. Thus, a preferred synthesis is of Vitamin...
5446222 Oligomers of cyclopentadiene and process for making them  
The invention provides a two-step process for converting cyclopentadiene dimer to a high density fuel mixture comprising the steps of: (a) reacting said cyclopentadiene dimer in the presence of a...
5444147 Cyclopropane monomers and polymers derived therefrom  
Hydroxy-substituted-bis-phenyl cyclopropanes of formula (I): ##STR1## wherein R 1 and R 2 are selected from H or OH, at least one of R 1 and R 2 being o, m or p-OH, are useful as monomers to...
5420320 Method for preparing cyclopentadienyl-type ligands and metallocene compounds  
In accordance with the present invention there is provided a process for preparing a cyclopentadienyl-type ligand, the process comprises (1) reacting an alkali metal salt of a cyclopentadienyl-type...
5414173 Process of preparing cyclopentadiene and substituted derivatives thereof  
A process of preparing cyclopentadiene or substituted cyclopentadienes, such as tetramethylcyclopentadiene. The process involves contacting under reaction conditions cyclopentenol or a substituted...
5338758 Bicyclic diterpene PAF antagonist compounds  
Four bicyclic terpenes isolated from a culture broth of Phoma sp SCF0592, ATCC 74077, pharmaceutical compositions containing them and their use as PAF antagonists to treat allergic and inflammatory...
5324876 Catalytic metal promoted cycloaddition process  
Small catalytic amounts of a transition metal catalyst such as Cr(O) are used in a higher order cycloaddition process in which a triene is reacted with a diene or alkene to efficiently and...
5310931 Isomerization of cycloolefin from endo-form to exo-form and copolymerization of cycloolefin and ethylene  
This invention is to provide a novel process for the isomerization of a cycloolefin having an endo form to a cycloolefin having an exo form. The resulting isomer mixture has a novel composition,...
5292977 Palladium catalyzed alkylative cyclization useful in synthesis of vitamin D and analogues  
An alkylative cycloaddition method is provided that is particularly useful for the synthesis of many of the Vitamin D analogues with differing side chains. Thus, a preferred synthesis is of Vitamin...
5233110 Process for the preparation of cyclooctene  
A process for the preparation of cyclooctene which comprises irradiating 1,5-cyclooctadiene with light in the presence of a photodehydrogenation catalyst, acetone and an alcohol to partially...
5220085 Preparation method of high density fuels by the addition-rearrangement of compound pentacyclo [7.5.1.O.sup.2,8.O.sup.3,7.-O.sup.10,14 ] pentadecane (C.sub.15 H.sub.22)  
A method of preparing high density fuels by the addition-rearrangement of pentacyclo[7. 5. 1. O 2 ,8 . O 3 ,7 . O 10 ,14 ]pentadecane. The process comprises the steps of: (a) reacting...
5157182 Dehydrocyclization of polysubstituted cyclic organic compounds over copper aluminum borate  
A dehydrocyclization process is described for producing polynuclear organic compounds by contacting a starting organic material having at least one ring moiety comprising at least two adjacent ring...
5143992 Methathesis polymerizable adducts of a divinylcyclohydrocarbon and cyclopentadiene  
An improved thermoset polymer having good mechanical properties and no detectable dicyclopentadiene odor is obtained by the ring-opening polymerization of a novel mixture of adducts comprising...
5043503 Production of lubricant stocks from polycyclic paraffins  
Alkylated polycycloparaffinic compounds useful as lubricating stocks are prepared by alkylating a polycycloparaffinic compound with an alkylating agent under alkylation reaction conditions in the...
4967033 Process for the preparation of polyunsaturated cyclic compounds  
The polyunsaturated compounds of formula ##STR1## having two conjugated double bonds in the endo- and exo- positions of the pentagonal cycle indicated by the dotted lines, and wherein symbols R 1 ...
4943302 Fuel composition with a high energy content  
A fuel composition with a high energy content, for direct-ignition internal combustion engines contains a gasoline from petroleum and an amount of up to 90% by volume, as referred to the same fuel...
4918158 1,3-diethynyladamantane and methods of polymerization thereof  
1,3-Diethynyladamantane and a method of forming same by brominating adamantane to yield 1,3-dibromoadamantane, subjecting vinyl bromide to Friedel-Crafts alkylation with the 1,3-dibromoadamantane...
4891460 Process for producing alkylidenenorbornenes  
The present invention provides a process for producing alkylidenenorbornenes by reacting C 4 -C 6 acyclic conjugated dienes with cyclopentadiene, dicyclopentadiene, or a methyl- or...
4873349 Ruthenium catalyst for biarylic coupling; new steganolides  
A method for forming bridged biaryl compounds via the intramolecular oxidative biarylic coupling of precursor compounds containing two aromatic rings linked via a hydrocarbon chain is disclosed...
4843185 Method for enhancing the polymerization activity of crude cycloolefin monomers for bulk polymerization  
A process for enhancing the polymerization activity of mixtures of one or more cycloolefin monomers is provided by treatment with heat. This process can be easily incorporated into ring-opening,...
4814532 Process for producing alkylcyclopentadiene derivatives  
A process for producing an alkylcyclopentadiene derivative comprising the vapor-phase reaction of a cyclopentadiene derivative and an aliphatic lower alcohol in the presence of a basic crystalline...
4804795 High-density fuel oil  
The present invention provided a high-density fuel oil comprising an isomerized product prepared by isomerizing an alicyclic saturated hydrocarbon represented by the following formula in the...
4755317 Working fluid for traction drive  
The working fluid for traction drive use has a particularly high traction coefficient at high temperatures and the principal ingredient thereof is a decahydronaphthalene compound substituted, on...
4744885 Hydro-carbon conversion using ferroaluminophosphates  
Novel class of crystalline microporous ferroaluminophosphate compositions containing as lattice constituents in addition to AlO 2 and PO 2 structural units, ferric and/or ferrous iron in...
4691036 Organic nickel compounds, the production thereof and the use thereof as polymerization catalysts  
Nickel compounds which can be produced by reacting a nickel(O) compound or a nickel compound, which can be converted in situ into a nickel(O) compound, with an adduct or a mixture of maleic acid...
4684754 Working fluid for traction drive  
The working fluid for traction drive comprises (A) a compound having, in a molecule, two decahydronaphthalene rings bonded either directly to each other or to the same or different carbon atoms in...
4668835 Novel tetracyclic trienes  
The alkylation of para-substituted isopropyl benzenes with dipentenes employing an aluminum halide catalyst system produces novel tetracyclic compounds.
4609481 Process for improving traction coefficient of traction drive fluid at high temperatures  
A traction drive fluid composition comprising the principal component of at least one component represented by the general formula (I): ##STR1## wherein R 1 to R 5 are each a hydrogen or an alkyl...
Matches 1 - 50 out of 210 1 2 3 4 5 >