Matches 51 - 100 out of 248 < 1 2 3 4 5 >
Match Document Document Title
5227537 Method for the production of 6,12-dihydro-6-hydroxy-cannabidiol and the use thereof for the production of trans-delta-9-tetrahydrocannabinol  
A method is described for the production of 6,12-dihydro-6-hydroxy-cannabidiol which is obtained by the reaction of olivetol and cis-p-menth-2-ene-1,8,-diol and the reaction thereof to yield...
5118878 Method for biodegrading and biotransforming bisphenol alkanes, and bisphenol alkkyl alcohols made therefrom  
A gram-negative, aerobic, motile, rod-shaped bacterium which is closely related to Chryseomonas luteola and Flavimonas oryzihabitans, has been found to catalyze the biodegradation and...
5116981 Antiinflammatory leukotriene B.sub.4 analogs  
This invention encompasses novel analogs of Leukotriene B 4 which are selected from a compound of formula I, B--C≉C--CH 2 C(M 2 )--C≉C--Y--C(M 1 )--A, or formula II, B--C≉C--CH 2 C(M 2...
5072056 Synthesis of 2-phenyl-1,3-propanediol  
A novel method of preparing 2-phenyl substituted-1, 3-propanediols, useful intermediates in the synthesis of pharmaceutical preparations is disclosed.
5066815 Process for preparing optically active alcohol  
A process for preparing an optically active alcohol is disclosed, which comprises asymmetrically hydrogenating a carbonyl compound in the presence of a ruthenium-optically active phosphine complex...
5053562 Process for making 1,3-diols from epoxides  
A process for manufacturing 1,3-glycols is disclosed. The process comprises reacting an epoxide with synthesis gas in the presence of rhodium, a phosphine, and a lower-alkyl iodide or β-hydroxy...
5030771 Method of producing aliphatic and cycloaliphatic diols by catalytic hydrogenation of dicarboxylic acid esters  
A method of producing aliphatic and cycloaliphatic diols by catalytic hydrogenation of dicarboxylic acid esters by the use of a copper chromite catalyst in which the copper content (calculated as...
5019656 Process for preparing p-hydroxybenzyl alcohol  
A process for preparing p-hydroxybenzyl alcohol or a derivative thereof comprising reacting a phenol and a formaldehyde source under a basic condition is disclosed, wherein the reaction is carried...
5003115 Production of 4-hydroxyphenethyl alcohol  
A method for producing 4-hydroxyphenethyl alcohol by epoxidizing 4-acetoxystyrene with a percaboxylic acid to produce 4-acetoxyphenyl oxirane; and catalytically hydrogenating the 4-acetoxyphenyl...
4990690 Process for preparing aromatic polyhydric alcohol  
An industrially meritorious process for preparing aromatic polyhydric alcohol is disclosed. The process can give an extremely high conversion rate of raw material, i.e., aromatic carboxylic acid...
4990689 2,4-bis(2-hydroxyhexafluoro-2-propyl)fluorobenzene and method of preparing same  
By reacting fluorobenzene with hexafluoroacetone in the pressure of a Lewis acid catalyst, e.g. aluminum chloride, a novel compound 2,4-bis(2-hydroxyhexafluoro-2-propyl)fluorobenzene is formed at...
4990693 Novel substances KS-504a, KS-504b, KS-504d and KS-504e and process for their preparation  
Novel physiologically active substances KS-504a, KS-504b and KS-504d having a vasodilative activity and a novel physiologically active substance KS-504e having an activity to inhibit histamine...
4982021 Process for the production of alkylene glycols with metalate-containing solid  
Alkylene glycols are produced by the reaction of alkylene oxide with water in the presence of a metalate-containing solid wherein the metalate is in association with electropositive complexing...
4982016 Conversion of diethyl phenylmalonate to 2-phenyl-1,3-propanediol  
Synthesis of 2-phenyl-1,3-propanediol by the selective reduction of diethyl phenylmalonate with metal hydrides in solution with heterocyclic ethers are disclosed.
4967018 Monoalkylene glycol production using mixed metal framework compositions  
A process for the catalytic hydrolysis of alkylene oxide to alkylene glycol using a hydrothermally stable, mixed metal framework catalyst composition selected from (a) material having the...
4965364 Ligand-accelerated catalytic asymmetric dihydroxylation  
An osmium-catalyzed method of addition to an olefin. In the method of asymmetric dihydroxylation of the present invention, an olefin, a chiral ligand, an organic solvent, water, an amine oxide an...
4959488 Polyfunctional hexasubstituted benzene derivatives  
Polyfunctional hexasubstituted benzene derivatives wherein at least three of the substituents are saturated carbon chains having from 1 to 21 carbon atoms and functional groups containing hetero...
4954659 1,4-bis (dihydroxyphenyl) butane and analogs  
A grignard synthesis of pharmacologically active 1,4-bis(dihydroxyphenyl)butane and analogs, as well as novel intermediates, is provided, comprising preparing a grignard reagent preferably, a...
4935554 Process for making 1,3-diols from epoxides  
A process for manufacturing 1,3-glycols is disclosed. The process comprises reacting an epoxide with synthesis gas in the presence of rhodium and a phosphine.
4918248 Process for preparation of alcohols  
An alcohol is effective produced by catalytically reducing an organic carboxylic acid ester with hydrogen in the presence of a catalyst obtained by reducing a catalyst precursor comprising (A)...
4873375 Process for preparing fluorine-substituted alicyclic diol  
A process for preparing a fluorine-substituted alicyclic diol comprising hydrogenating in the presence of a catalyst a fluorine-substituted aromatic diol represented by formula (I): ##STR1##...
4822925 Organosalts of metalate anions and process for the production of alkylene glycols therewith  
Novel vicinal dioxyalkylene organometalates comprising a cation having a hydrocarbyl-containing substituent are disclosed. The vicinal dioxyalkylene organometalates can be reacted with water to...
4822924 Process for producing 2,6-dichlorobenzyl alcohol  
A process for producing 2,6-dichlorobenzyl alcohol, which comprises reacting 2,6-dichlorobenzyl chloride with an acetate-forming agent to form its acetate, followed by hydrolysis to obtain...
4778568 Process for separating isomer mixtures of 1,3- and 1,4- bis-(2-hydroxyhexafluoro-prop-2-yl)-benzene  
Isomer mixtures of 1,3- and 1,4-bis-(2-hydroxyhexafluoroprop-2-yl)-benzene are separated by a steam distillation in the presence of CS 2 . On cooling of the steam distillate, a solid precipitates...
4760200 Process for the production of alkylene glycols  
The process for the liquid-phase hydration of a vicinal alkylene oxide(s) to the corresponding alkylene glycol(s) comprising carrying out such hydration in an aqueous medium containing a water...
4701571 Process for the production of alkylene glycols with metalate-containing solids  
An improved process for the hydrolysis of alkylene oxide to produce alkylene glycol which comprises: (a) reacting alkylene oxide and water in the presence of a selectivity-enhancing...
4579983 Process for the hydrolysis of alkylene oxides using organometalates  
In processes for the hydrolysis of alkylene oxide to form alkylene glycols in the presence of selectivity-enhancing organometalate wherein the organometalate is provided in a water-insoluble phase,...
4579982 Preparation of monoalkylene glycols using two liquid phase reaction menstruum  
Alkylene oxides are hydrolyzed in a reaction menstruum containing an aqueous phase, a water-immiscible liquid phase, and a selectivity-enhancing, dissociatable metalate anion-containing material....
4578524 Carbon dioxide-enhanced monoalkylene glycol production  
The process for the liquid-phase hydration of a vicinal alkylene oxide(s) to the corresponding alkylene glycol(s) comprising carrying out such hydration in the presence of vanadate anion and a...
4571440 Continuous process for the production of alkylene glycol in the presence of organometalate  
A continuous process for making alkylene glycols by the hydrolysis of alkylene oxides in the presence of selectivity-enhancing organometalate wherein the alkylene glycol-containing hydrolysis...
4564715 Preparation of monoalkylene glycols in two stages  
High selectivity to monoalkylene glycol is obtained by contacting in an associated moiety-forming zone alkylene oxide and a selectivity enhancing, dissociatable metalate anion under conditions...
4562299 Process for the preparation of vicinal diols soluble in water  
A process for the preparation of water-soluble vicinal diols by means of a direct catalytic hydroxylation of the corresponding olefines with H 2 O 2 . An olefine possibly carrying functional...
4560813 Processes for the production of alkylene glycol in the presence of organometalate  
In processes for making alkylene glycols by the hydrolysis of alkylene oxides in the presence of selectivity-enhancing metalate anion-containing material, metalate anion can be recovered from the...
4560811 Metal-mediated halohydrin formation  
Novel methods for making chlorohydrins are provided using a Lewis acid catalyst with an olefin and peroxy compound or where an enantiomer is desired, a Lewis acid catalyst in combination with a...
4551566 Process for the production of alkylene glycols  
The process for the liquid-phase hydration of a vicinal alkylene oxide(s) to the corresponding alkylene glycol(s) comprising carrying out such hydration in the presence of a vanadate salt wherein...
4533772 Process for directly hydroxylating olefins using an osmium-halide catalyst and oxygen oxidant  
The process for hydroxylating olefins with oxygen in the presence of water, an osmium-halide (e.g., OsBr 3 ) catalyst and transition metal containing co-catalyst (CuBr 2 ) is disclosed.
4533773 Process for hydroxylating olefins in the presence of an osmium oxide catalyst and carboxylate salt co-catalyst  
A process for hydroxylating olefins, such as ethylene or propylene, using an osmium oxide catalyst such as OsO 4 , a carboxylate salt co-catalyst, such as sodium acetate, and organic hydroperoxide...
4510338 Resorcin derivatives, process for their preparation and pharmaceutical compositions containing them  
The invention relates to new resorcin derivatives of the formula (I) ##STR1## wherein R 1 and R 2 independently represent hydrogen, halogen, trihalomethyl, alkyl having from one to 3 carbon atoms...
4508926 4-Hydroxy-benzhydrols, process for their preparation and pharmaceutical compositions containing them  
The invention relates to new 4-hydroxy-benzhydrols of the formula (I) ##STR1## wherein R 1 and R 2 independently represent hydrogen, halogen, trihalomethyl, alkyl having from one to 4 carbon...
4507510 Process for producing xylyleneglycol  
Xylyleneglycol is produced by diazotization reaction of xylylenediamine in the presence of more than 5 parts by weight of water per 1 part of xylylenediamine, while maintaining the PH of the...
4497830 Carbacyclins, their preparation and pharmacological use  
Compounds of Formula I ##STR1## wherein X is oxygen or CH 2 ; A is CH 2 --CH 2 , trans-CHCH or C.tbd.C; W is free or functionally modified hydroxymethylene or free or functionally...
4496779 Process for the hydroxylation of olefins using molecular oxygen, an osmium containing catalyst, a copper co-catalyst, and a cycloaliphatic amine based promoter  
A process directed to the hydroxylation of olefins by reacting said olefins in the presence of oxygen, water, and a catalyst composition comprising (i) a catalytically active osmium containing...
4486613 Process for hydroxylating olefins using an osmium carbonyl catalyst  
A process for hydroxylating olefins, such as ethylene or propylene, using an oxidant selected from organic hydroperoxides, H 2 O 2 , and oxygen and a catalyst composition comprising at least one...
4482763 Process for hydroxylating olefins in the presence of an osmium containing catalyst and organic halogenated hydrocarbon co-catalyst  
A process for hydroxylating olefins with an organic hydroperoxide and water in the presence of an osmium containing catalyst (e.g. OsO 4 ) and an organic halogenated hydrocarbon co-catalyst (e.g.,...
4482760 Process for the production of 1,2-diols  
1,2-Diols of the formula: ##STR1## where R 1 and R 2 are hydrogen, alkyl of 1 to 10 carbon atoms or such as alkyl substituted by a halogen, a hydroxy group, a phenyl group, a methoxy group, or an...
4460800 Process for preparation of hydroxyaryldialkylcarbinols  
The preparation of hydroxyaryldialkylcarbinols by the reaction of hydroxyaryl alkyl ketones or alkyl hydroxyarenecarboxylates with Grignard reagents in a mixed ether-aromatic hydrocarbon solvent is...
4448987 Catalyzed hydrogenation of terephthalic acid to p-hydroxymethylbenzoic acid using a rhenium catalyst  
A process is disclosed for preparation of hydroxymethyl aryl monocarboxylic acid compounds by reduction of arylene dicarboxylic acid compounds in the presence of a rhenium catalyst and an aqueous...
4413151 Process for hydroxylating olefins using a supported osmium catalyst  
A process for hydroxylating olefins using a supported osmium catalyst such as Os 3 (CO) 12 adsorbed on a support, such as MgO, and optionally in conjunction with a co-catalyst such as NaI, is...
4393251 Preparation of propanediols using a copper-and zinc containing hydrogenation catalyst  
Hydrogenation catalysts which are prepared from mixed crystals of copper-zinc compounds, obtained by precipitation, of the formula Cu 1 .5-3 Zn 1 -2.5 (CO 3 ) 1 -2 (OH) 4 -6.(H 2 O) 0 -1 by...
4393253 Hydroxylation of olefins  
A method for preparing polyols such as diols by catalytic hydroxylation of an olefinic compound by reacting the olefinic compound with an organic hydroperoxide and water in the presence of a...
Matches 51 - 100 out of 248 < 1 2 3 4 5 >