Matches 51 - 100 out of 214 < 1 2 3 4 5 >


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4788368 Synthesis of olefins from ketones using a bis(substituted alumino) substituted methane  
Ketones are alkylenated to form the corresponding olefin by reaction with a bis(substituted alumino)substituted methane, e.g., in the form of its dietherate.
4751307 Wittig-reaction processes  
Disclosed are improved Wittig reaction processes wherein the Wittig reaction is conducted in an anisole containing solvent.
4728672 Process for producing hydrocarbons  
A process for producing hydrocarbons which comprises bringing a gas mixture comprising hydrogen and carbon monoxide into contact with a catalyst comprising manganese oxide, alkali metal, sulfur,...
4604480 Method for the preparation of sulfones and compounds containing carbon chains having conjugated unsaturation and the compounds resulting from such method  
A method for the preparation of a first sulfone compound of the formula: ##STR1## wherein Ra is ##STR2## where Rb is Br and Rc is H except that Rb and Rc together may be an electron pair when R6...
4517171 Synthesis of H2 and CH4 from H2 S and CO  
Hydrogen and methane are synthesized from a gaseous feed comprising a mixture of H2 S and CO by contacting said feed with a catalyst comprising a sulfided rutile titania at a temperature of at...
4499314 Methanol conversion to hydrocarbons with zeolites and cocatalysts  
A process for producing hydrocarbons comprising contacting, under conversion conditions, an aqueous methanol with a crystalline aluminosilicate zeolite catalyst which is hydrothermally stable in...
4463194 Process for making piperitone from plinols  
A process for making piperitone from crude plinols involving hydrogenating the crude plinols to form dihydroplinols and dehydrating the dihydroplinols to yield an iridene. The iridene is then...
4443632 Macrocyclic carbonyl compounds, process for their preparation and their use as starting materials for the preparation of bicyclic unsaturated hydrocarbons  
Compounds of formula ##STR1## having a double bond in one of the positions indicated by the dotted lines and wherein R represents a hydrogen atom or a methyl radical are utilized as starting...
4436943 Process for the preparation of 2,2-dicyclohexenylpropane  
2,2-Dicyclohexenylpropane is prepared by heating 4,4'-dioxydicyclohexylpropane in the presence of a strong acid, under pressures from 1 to 50 mbar and at 120° to 220° C., distilling off the...
4418236 Method of producing gasoline hydrocarbons from methanol  
Gasoline hydrocarbons are produced by a catalytic conversion of methanol under a pressure of about 5 to 100 bars and at temperatures of about 250° to 500° C. The high-hydrocarbon product of the...
4393260 Preparation of cyclohexenyl compounds  
Cyclohexenyl and alkenyl aromatic compounds, such as cyclohexene and styrene, are prepared by a process comprising contacting a corresponding cyclohexyl or alkyl aromatic carboxylic acid, such as...
4338475 Converting alcohols to hydrocarbons  
Apparatus and method of utilization for controlling exothermic reactions such as the conversion of methanol to hydrocarbons are discussed. More particularly, the arrangement of apparatus...
4328383 Process for preparing unsaturated bicyclic hydrocarbons  
New process for preparing unsaturated bicyclic hydrocarbons useful as intermediate compounds in the preparation of macrocyclic ketones.
4327233 Method 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...
4319066 Preparation of alkenyl aromatic compounds  
Cyclohexenyl and alkenyl aromatic compounds, such as cyclohexene and styrene, are prepared by a process comprising contacting a corresponding cyclohexyl or alkyl aromatic carboxylic acid, such as...
4300009 Conversion of biological material to liquid fuels  
Living plants and animals synthesize and often accumulate a wide variety of organic materials having a molecular weight greater than 150. These include different chemical types such as natural...
4292458 Production of hydrocarbons from alcohols  
A new crystalline borosilicate comprises a molecular sieve material having the following composition in terms of mole ratios of oxides: 0.9±0.2 M2/n O:B2 O3 :YSiO2 :ZH2 O,wherein M is at least one...
4267111 Process for preparing β-(3-exo-hydroxy-endo-2,3-dimethyl-2-norbornyl)-propionic acid .delta .  
This invention concerns processes for preparing β-santalol, β-santalene, dihydro-β-santalol, tetrahydro-β-santalol and related compounds from camphene. The invention further concerns novel...
4263443 Conversion of aldehydes  
Hydrocarbons and esters and/or acids are produced by heating aldehydes in the presence of an alcohol or an alcohol equivalent and in the presence of an iodine or bromine moiety and a rhodium or...
4263141 Process of producing gasoline from synthesis gas  
A process for the catalytic production of gasoline hydrocarbons from synthesis gas comprising carbon oxides and hydrogen is disclosed wherein the synthesis gas is fed initially to a methanol...
4225734 Process for producing symmetrical olefins  
A process for the production of symmetrical olefins is provided comprising the reductive coupling of ketones and aldehydes with reactive Ti(II) and/or Ti(O) species.
4224253 Novel bicyclic scents  
Novel 2-methylene-3-methyl-3-(1',3'-pentadien-1'-yl)-bicyclo-[2,2, 1]-heptanes substituted in the 4'-position by methyl, alkoxycarbonyl, formyl, hydroxymethyl or cyano are obtained by reacting the...
4207424 Catalytic process for dehydration of alcohols  
An improved process for the catalytic dehydration of alcohols to form unsaturated organic compounds is provided in which an alcohol is dehydrated in the presence of alumina catalysts which are...
4179468 Cyclic terpenoid onium salts, their preparation and uses  
Acyclic terpenoid onium salts are cyclized in an acidic aqueous solution at a temperature of at least about 80° C.
4178317 Manufacture of olefinically unsaturated aliphatic or cycloaliphatic hydrocarbons  
Olefinically unsaturated aliphatic or cycloaliphatic hydrocarbons are manufactured by bringing alkanecarboxylic acids of 3 to 20 carbon atoms, alkanedicarboxylic acids of 4 to 20 carbon atoms or...
4173586 Process for cleavage of unsaturated multi-cyclic ketones  
A process for cleavage of unsaturated multi-cyclic ketones involves thermal cracking of the liquid ketone at elevated temperatures in the absence of water to produce cyclohexanone and a variety of...
4151214 Process for methylation of olefins  
Method for the reaction of an olefin comprising contacting an olefin and a reactant selected from methanol, dimethyl ether, or mixtures thereof, with zinc iodide, zinc bromide, or mixtures...
4136126 Preparation of β-phellandrene  
β-Phellandrene is prepared by pyrolyzing a para-menth-1-ene-7-sulfonate salt.
4088681 Substituted 1-alkenynyl-cyclohexanols and -cyclohexenes and processes for their preparation  
New substituted 1-alkenynyl-cyclohexanols and 1-alkenynyl-cyclohexenes. The 1-alkenynyl-cyclohexanols are obtained by reacting the corresponding cyclohexanone witn an enyne in the presence of a...
4086285 Tricyclo[6.2.1.02,6 ]undeca-2(6)-ene and process for hydride transfer reduction rearrangement of same  
Tricyclo[6.2.1.02,6 ]undeca-2(6)-ene is disclosed and there is further disclosed a process for the hydride transfer reduction rearrangement of tricyclo[6.2.1.02,6 ]undeca-2(6)-ene having the...
4078139 Process for deoxygenating secondary alcohols  
The process for removing a secondary hydroxyl group from an organic compound having at least one secondary hydroxyl group and having any amino groups protected, comprises the reaction of a...
4059643 Process 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...
4049718 Sulphones  
Sulphones of the formula: ##STR1## in which R is a substituted or unsubstituted alkyl, alkylaryl, aralkyl, or aryl radical, A is a radical containing one or more isoprene units which is saturated,...
4048223 3-Dimethylsulfamoyl-5-[amino(alkyl or alkylidene)]-5H-dibenzo [a,d]cycloheptenes  
This invention relates to new derivatives of dibenzocycloheptenes and to processes for making them. More particularly, the invention includes 5H-dibenzo[a,d]-cycloheptenes and...
3992472 Synthesis of ethylenically unsaturated compounds from aldehydes or ketones  
Certain hydrocarbylidene-niobium or -tantalum complexes react with aldehydes or ketones to produce ethylenically unsaturated compounds. Exemplary is the reaction of...
3988332 Hydrocarbylidene compounds of niobium and tantalum  
Certain hydrocarbylidene compounds of niobium and tantalum react with oxo compounds to form olefins and are also useful as oxygen scavengers. The compounds can also be used to deposit tantalum or...
3987112 Process for manufacture of catechol  
A 4-stage process for the production of catechol, starting with a mixture of cyclohexanol-cyclohexanone ("KA-oil"), is provided herein whereby the starting mixture is first hydrotreated to convert...
3976712 2,4-Exo-ethanobicyclo (3.3.1)nonane  
2,4-EXO-ETHANOBICYCLO[3.3.1]NONANE HAVING THE FORMULA (I): ##SPC1##is prepared by treating 2-endo-hydroxymethyl-2,3-exo-trimethylenenorbornane having the formula (II): ##SPC2##with a hydride donor...
3974232 Method for producing cyclohexene by dehydration of cyclohexanol  
Cyclohexanol is dehydrated to cyclohexene by heating it in the presence of a heteropolyacid catalyst. The heteropolyacid is selected from tungstophosphoric acid, tungstosilicic acid,...
3970706 Process for synthesizing cis-α-santalene and cis-α-santalol  
The invention relates to a process for the grafting a chain on to the 10-position carbon atom of a tricyclene skeleton, more particularly for producing 10-substituted stereospecific tricyclenes,...
3932546 Preparation of polyenes  
Polyenes are synthesized from unsaturated materials having allylic hydroxyl groups, which react with imidosulfides to produce sulfones. Removal of the sulfone group, e.g. by reaction with...
3916017 POLYCYCLIC COMPOUNDS  
Tricyclo[5.2.1.02,6 ]dec-3-enes having an allylic group in the 8 or 9 position may be made by reacting a cyclopentadiene dimer with a 2-alkenyl magnesium compound co-reactive therewith to effect...
3892818 Catalytic conversion of hydrocarbon chlorides to hydrogen chloride and hydrocarbons  
The present invention relates to a process for the conversion of hydrocarbon chlorides in the presence of hydrogen to hydrocarbons and hydrogen chloride wherein the process takes place in the...
3671599 OXIDATIVE DEHYDROGENATION OF MULTICYCLIC HYDROCARBONS  
Conjugated dienes of polycyclic naphthenes having three to 11 rings of five to six carbon atoms each of which at least three are adjacent fused rings are produced by contacting the polycyclic...
3622647 MANUFACTURE OF ALKENE FROM ALKANE VIA BORON ESTERS  
Manufacture of alkene from alkane, said alkene of an equal number of carbons as its alkane precursor, comprising contacting alkane with oxygen in the presence of a boric acid at an elevated...
3542891 PREPARATION OF ALKENIC COMPOUNDS  
3530198 PROCESS FOR PREPARATION OF OLEFINS  
3527830 PREPARATION OF OLEFINIC HYDROCARBONS  
3505420 TRICYCLODECADIENES  
3707489 PROCESS OF PREPARING ETHYLIDENE COMPOUNDS  

Matches 51 - 100 out of 214 < 1 2 3 4 5 >