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8017815 Process for the preparation of hydroxytyrosol  
Process for the preparation of hydroxytyrosol, characterized by reacting 4-chloroacetyl-catechol with a metal formate and formic acid in an aqueous solvent optionally containing a lower alkanol...
7148386 Processes for preparing benzoquinones and hydroquinones  
A process for the preparation of hydroquinone compounds comprising, reacting an aromatic hydroxy compound with an oxidizing agent in a biphasic solvent system. The reaction is carried out in the...
7087799 Amino group containing phenol derivative  
An object of the present invention is to provide a material which resolves the drawbacks associated with polyimide polymers, and yet retains the advantages offered by conventional polyimide...
6806395 Process for preparation of 3,5-bisalkylphenols  
A process for producing a 3,5-bisalkylphenol (2) according to the following reaction scheme: (wherein R1 represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, or a...
6600078 Liquid phase catalytic hydrogenation process to convert aldehydes to the corresponding alcohols  
A heterogeneous liquid-phase process for the hydrogenation of aldehydes of Formula (I) and (III) to the corresponding alcohols of Formula (II) and (IV) which process comprises contacting alcoholic...
6554967 Method of refining dihydroxyaryl compound  
A refined dihydroxyaryl compound, for example, catechol, having a high degree of purity and a very low metal content is produced by evaporating a starting dihydroxyaryl compound in a distillation...
6518315 Medicinal uses of phenylaikanols and derivatives  
A compound of formula (I), a pharmaceutically acceptable derivative thereof, wherein Ph is a phenyl radical R1 is H, OH, OC1-4alkyl, NO2; R2 is OH, OC1-4alkyl, OC═OC1-4alkyl or OC═OPh where the Ph...
RE37947 Aromatic polyenic compounds and pharmaceutical/cosmetic compositions comprised thereof  
Novel pharmaceutically/cosmetically-active aromatic polyenic compounds have the structural formula (I): and are useful for the treatment of a wide variety of disease states, whether human or...
6414197 Preparation of phenol and its derivatives  
A method and a catalyst are described for selective oxidation of aromatic compounds (e.g., benzene and its derivatives) into hydroxylated aromatic compounds (e.g., corresponding phenols). For...
6380441 Process for preparing 3-hydroxybenzyl alcohol  
3-Hydroxybenzyl alcohol can be prepared in a simple and inexpensive way by subjecting 3-chloromethylphenyl chloroformate to an acidolysis with a carboxylic acid or a carboxylic acid salt and...
6218431 Substituted biphenyls  
Substituted biphenyls having glucagon receptor antagonistic activity. Claimed compounds have the formula ##STR1##wherein R1a and R1b independently represent (C1 -C6) alkyl; R2 represents (C1 -C10)...
6184421 Method for preparing a 4-hydroxybenzaldehyde and derivatives  
The present invention concerns a process for the preparation of a 4-hydroxybenzaldehyde and its derivatives. More particularly, the invention concerns the preparation of...
5811587 Process for the hydroxyalkylation of a carbocyclic aromatic ether  
The present invention concerns a process for the hydroxyalkylation of a carbocyclic aromatic ether.The invention preferably relates to the preparation of 3-methoxy-4-hydroxybenzyl alcohol by the...
5783737 Process for the preparation of 3-carboxy-4-hydroxybenzaldehides and derivatives thereof  
The present invention concerns a process for the preparation of 3-carboxy-4-hydroxybenzaldehydes and derivatives thereof from phenolic compounds carrying formyl and/or hydroxymethyl groups in the...
5563300 Process for preparing 4-hydroxyphenylmethylcarbinol  
The present invention provides a unique and novel way of producing carbinols such as 4-hydroxyphenylmethylcarbinol (HPMC). In this new process, a ketone such as 4-hydroxyacetophenone (4-HAP) is...
5393776 Tocotrienol analogs in the treatment of hypercholesterolemia and hyperlipidemia  
This invention relates to structurally novel acyclic tocotrienol analogs, which are useful for cholesterol/lipid lowering in cases of hypercholesterolemia and hyperlipidemia, and for...
5041283 Cosmetic composition  
A cosmetic composition comprising a long-chain alkyltrimethylol is disclosed. The alkyltrimethylol is represeneted by the formula (I): ##STR1## wherein R is a linear or branched, saturated or...
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...
4959391 Phenol derivatives, pharmaceutical compositions containing these compounds and processes for the preparation of these compounds and compositions  
Phenol derivatives of the formula ##STR1## wherein A and B have the same or different meanings and each represent one of the groups --C.tbd.C--, cis--CHCH-- or trans--CHCH--, R1 is hydrogen, an...
4915875 Oxidation products of paramethyl-substituted hindered phenols  
Paramethyl-substituted hindered phenols are selectively oxidized by contacting with an oxidizing agent at elevated temperatures in the presence of a heterogeneous oxidative coupling catalyst. In...
4900354 (Quinolinyl and quinoxalinyloxy)phenoxy alkenols and their use as post emergent herbicides  
Compounds of the class comprising (quinolinyl and quinoxalinyloxy)phenoxy) alkenols, e.g., 4-(4-((6-chloro-2-quinolinyl)oxy)phenoxy)-2-penten-1-ol; and a method of preparation, comprising reacting...
4849548 Hydrolysis of halo- and alkyl-substituted phenols  
A 4-halomethyl-3,5-dihalo-2,6-dialkylphenol is hydrolyzed by contact with water to form a 4-hydroxy-methyl-3,5-dihalo-2,6-dialkylphenol under conditions to minimize formation of the corresponding...
4590304 Protected ethynylated phenols  
An acetylenic end-capping agent of the general formula ##STR1## wherein R1 and R2 can be the same or different and are selected from the group consisting of hydrogen, C11 to C4 alkyl, phenyl and...
4460799 Process for the preparation of ortho-hydroxybenzyl alcohols  
This invention relates to a process for the selective preparation of ortho-hydroxybenzyl alcohols and, in particular, ortho-hydroxybenzyl alcohol. According to the invention, the reaction of a...
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...
4435601 Preparation of polyphenols by oxidation of hydroxybenzaldehydes  
Optionally aldehyde substituted polyphenols are prepared by oxidizing, with hydrogen peroxide, a hydroxybenzaldehyde bearing at least one aldehyde substituent ortho- and/or para- to the nuclear...
4408074 Process for preparing 1-(3,5-dimethoxy-4-hydroxy phenyl)-2-(N-methylamino) ethanol hydrochloride  
A process for preparing 1-(3,5-dimethoxy-4-hydroxy phenyl)-2-(N-methylamino) ethanol hydrochloride is described by reacting 2,6-dimethoxyphenol with anhydrous chloral in the presence of a...
4318848 Process for the neutralization of basic reaction compositions  
Chemical reaction products, obtained in an alkaline medium and which require the addition of a dispersing agent, are neutralized by addition of a free surface-active acid to which, after its...
4301088 Method of preparing benzyl alcohols by decarbonylation of formic acid esters  
A method for preparing benzyl alcohols or substituted benzyl alcohols is disclosed by decarbonylation of formic acid esters of benzyl alcohols or ring substituted benzyl alcohols, the...
4291178 Preparation of ortho-hydroxybenzyl alcohols  
A yield improved process for the preparation of orthohydroxybenzyl alcohols by esterifying a phenol with boric acid, next condensing the product of esterification with either formaldehyde or a...
4284829 Hydroxyalkyl and oxoalkyl substituted phenols as analgesics and sedatives  
Compounds useful for pharmacological and medicinal purposes having the formulae ##STR1## wherein R is H, C1 -C5 alkanoyl; R1 is H, benzyl, C1 14 C5 alkanoyl, P(O)(OH)2, --CO(CH2)2 COOH or a basic...
4283565 Process for preparing benzylalcohols  
There is described an essentially two step process for the preparation of benzylalcohols including those benzylalcohols having substituents on the benzyene ring by reaction of a substituted or...
4273891 Hydrocarbon-substituted methylol phenols  
Hydroxy aromatic compositions containing (a) a hydroxyl group bonded directly to a carbon of an aromatic nucleus, (b) a hydrocarbon-based substituent of at least about 50 aliphatic carbon atoms...
4245126 Process for the preparation of a mixture of 2- and 4-hydroxybenzyl alcohol  
Mixtures of 2- and 4-hydroxybenzyl alcohol with high contents of 4-hydroxybenzyl alcohol are obtained by a process comprising reacting phenol with paraformaldehyde in the presence of a compound...
4238629 Process for the preparation of a mixture of 2-and 4-hydroxybenzyl alcohol  
Mixtures of 2- and 4-hydroxybenzyl alcohol with high contents of 4-hydroxybenzyl alcohol are obtained by a process comprising reacting phenol and paraformaldehyde in the presence of a strongly...
4205188 Process for the production of hydroxybenzyl alcohols  
A process is provided for the production of hydroxybenzyl alcohols, comprising condensing phenol with formaldehyde in an alkaline solution to form a mixture of ortho- and para-hydroxymethyl...
4192959 Process for the preparation of pure 2-hydroxybenzyl alcohol, pure 4-hydroxybenzyl alcohol or a mixture of both hydroxy-benzyl alcohols  
A process for the preparation of pure 2-hydroxybenzyl alcohol, pure 4-hydroxybenzyl alcohol or a mixture of both hydroxybenzyl alcohols by reacting phenol and formaldehyde in the presence of a...
4111960 Substituted dioxolanes and photosensitive and degradable polymers useful in imaging  
Substituted dioxolanes are provided having the formula ##STR1## wherein R1 and R2 are H or a phenyl group substituted with up to 5 substituents of lower alkyl or nitro, with the proviso that at...
4038327 3,5-Disubstituted-4-hydroxybenzyl derivative  
A new series of compounds having the following formula is disclosed: ##STR1## wherein R1 and R2 are independently aralkyl or alkyl with the proviso that the aralkyl group contains no branching on...
4025553 Production of o-hydroxybenzyl alcohols  
A novel process for producing o-hydroxybenzyl alcohols useful as raw materials or intermediates in chemical or pharmaceutical industries, which comprises reacting phenols or naphthols with...
3868424 Process for the preparation of ortho-hydroxybenzyl alcohols  
Ortho-hydroxybenzyl alcohols are obtained from phenols having an unsubstituted ortho-position by reacting the phenol with a boric acid or boron trioxide, treating the reaction product with...
3845056 PIPERAZINALKYL DIACRYLATES  
3839467 PREPARATION OF HYDROXYLATED AROMATIC COMPOUNDS  
3801601 2-ACYLAMIDO-2-(3,4-METHYLENEDIOXYBENZYL)-3-HYDROXY-PROPIONITRILE COMPOUNDS  
3795700 ESTERS OF 4-ALKYL-2,6-DIMETHYL-3-HYDROXYBENZYL ALCOHOL  
3763287 PHOSPHORUS CONTAINING DERIVATIVES OF OMEGA-(3,5-DIALKYL-4-HYDROXYPHENYL)ALKANOLS  
3755402 ESTERS OF CYANIC ACID AND METHOD OF PREPARATION  
3752780 HALOGENATED METHYLOL PHENOLS  
3740348 ESTERS OF CYANIC ACID  
3711463 AZIRIDINOMETHYL PHENOLIC COMPOUNDS  

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