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4607116 Process for preparing diaryls  
Provided is a process for preparing a diaryl or a mixture of diaryls represented by any or a combination of the following formulae (II), (III) and (V), characterized in that a diaryliodonium salt...
4602105 Process for the preparation of alpha-haloalkyl esters  
A process for the preparation of alpha-haloalkylesters, wherein an acylhalide having the general formula ##STR1## in which R1 represents a substituted or unsubstituted hydrocarbyl group and Hal...
4598113 Hindered hydroxyphenylalkanoates of ethoxylated bisphenol A and stabilized compositions  
Novel hydroxyalkylarylalkanoates of ethoxylated bisphenol A are provided which are useful as stabilizers of resins made from at least one ethylenically unsaturated monomer. A process for...
4596667 Liquid crystalline compounds and mixtures thereof  
Novel ferroelectric liquid crystalline compounds having a superior stability and chiral, smectic liquid crystalline compositions containing at least one kind of the same are provided, which...
4596671 Use of 4(2'-butyl) phenyl acetate in augmenting or enhancing the leather aroma of perfume compositions, colognes, perfumed polymers and perfumed articles  
Described is the use for augmenting or enhancing the leather aroma of perfume compositions, colognes, perfumed polymers and perfumed articles including solid or liquid anionic, cationic, nonionic...
4594460 Process for selective C-alkylation of phenols  
Substituted phenols of formula ##STR1## in which R1 is in an ortho or para position relative to the phenol function and denotes ##STR2## R2 denotes an acyclic radical optionally substituted by...
4590301 Polymerization inhibitors  
Compounds of the general formula ##STR1## wherein n, R1, R2 and X are defined herein, are effective inhibitors of polymerization of vinylic monomers, particularly acrylic monomers. The inhibitors...
4584396 Substituted phenoxypropionates and herbicidal compositions  
Novel substituted phenoxypropionate of the formula ##STR1## in which R1 and R2 each independently are a hydrogen atom or a C1 to C6 alkyl group, X is a hydrogen or halogen atom or a nitro, C1 to...
4576732 Ferroelectric liquid crystal compounds and liquid crystal compositions  
The present invention is characterized by a smectic liquid crystal compound represented by the following formula: ##STR1## wherein R is selected from alkyl and alkoxy groups; X from ##STR2## m and...
4570006 Amidine compound, process for producing same and anti-complement agent comprising same  
Amidino compounds represented by the formula ##STR1## and pharmaceutically acceptable acid addition salts thereof are novel compounds and are useful as powerful anti-trypsine, anti-plasmin,...
4568497 Preparation of monoalkylated dihydroxybenzenes  
Preparation of monoethers of dihydroxybenzenes from an alkenylphenol and an alkylating agent and thereafter oxidizing in the presence of an acid catalyst.
4564712 Process for the preparation of diphenyl ethers  
Diphenyl ethers are prepared by Ullmann reaction of alkali metal phenolates with halobenzenes in the presence of basic copper carbonate and/or copper salts of lower aliphatic carboxylic acids as...
4552977 Process for the preparation of (phenoxy- or benzyl-)-phenoxypropionic acids and their alkali metal salts  
Process for the preparation of (phenoxy- or benzyl-)-phenoxypropionic acids and the alkali metal salts thereof by adding a double molar amount of an aqueous alkali hydroxide to a boiling mixture...
4550981 Liquid crystalline esters and mixtures  
Compounds of the formula ##STR1## wherein X2 is a single covalent bond or --COO--; X1 is a single covalent bond, --COO--, --CH2 CH2 -- or when X2 is --COO--, X1 also can be p--C6 H4 --, p--C6 H4...
4551264 Polyhalogenoaromatic compounds for liquid crystal compositions  
New polyhalogenoaromatic compounds of Formula I ##STR1## wherein Y and Z are each independently alkyl, alkoxy or alkanoyl each of 1 to 12 C atoms, --COOR1, --O--CO--R1, CN, NO2, NH2 or OH; Q is...
4547583 Process for esterifying phenol-containing carboxylic acids  
Carboxylic acids containing phenol groups are esterified by means of (C1 -C3)-alcohols in the presence of acid catalysts without the phenolic hydroxyl groups being esterified at the same time by...
4546198 Asymmetric synthesis of esters and acids  
Stereoisomerically-enriched esters are prepared by treating a non-symmetrical ketene with a racemic or chiral tertiary-base-substituted alkylcarbinol. Optional hydrolysis of the esters gives the...
4537984 Process for producing 2-(4-hydroxyphenoxy) propionate derivatives  
A process for producing a 2-(4-hydroxyphenoxy) propionate derivative represented by the formula: ##STR1## where Alk is a C1 -C5 alkyl group, which comprises reacting a phenoxy propionate...
4535108 Flame retardant polycarbonate  
Novel compounds of the metal salts of certain phenol ester sulfonic acids are useful as a flame retardant additive in polycarbonate composition.
4532346 Process for the preparation of hydroxyphenoxy-alkanecarboxylic acids  
Continuous process for the preparation of hydroxyphenoxy-alkanecarboxylic acids of the formula ##STR1## in which A is alkylene, by reaction of dihydroxybenzenes with alpha-haloalkanecarboxylic...
4532328 Process for making optically active esters of phenoxyphenoxypropionic acids or pyridyloxyphenoxypropionic acids  
Process for making optically active esters having an enhanced optical purity by reacting a mole of an appropriate substrate phenol with a molar excess of an appropriate optically active ester.
4531969 Herbicidal esters of D-1-(phenoxy-4-phenoxy)propionic acid  
Optically active enantiomers of the formula I ##STR1## where R is a group of the formulae ##STR2## R1 and R2, among others, are halogen or CF3 and Z is a carboxyl, carboxylate, carboxylic acid...
4529556 Bis((aryl)vinyl)benzenes  
The invention bis((aryl)vinyl)benzenes wherein the aryl and benzene moieties may be substituted, and the vinyl carbon alpha to the central benzene ring may be further substituted with an aliphatic...
4529713 Radioactive stilbene derivatives in radioimmunoassay  
Novel radioactive stilbene derivatives marked with iodine 125 or 131 of the formula ##STR1## wherein each A and B are both hydrogen or together form a double bond and R is the remainder of amino...
4528393 Derivatives having expectorant activity, the procedure for their preparation and the pharmaceutical compositions which contain them  
New esters of N-(2-amino-3,5-dibromobenzyl)trans-4-aminocyclohexanol, along with certain phenolic derivatives, present interesting expectorant activity, associated with an acute toxicity which is...
4528114 Acetylenes  
Compounds of the formula ##STR1## wherein ring B stands for 1,4-phenylene or a trans-1,4-disubstituted cyclohexane ring and A stands for a group with 1 to 3 six-membered rings, which together with...
4528394 Preparation of hydroxyaromatic ethers  
Prepare hydroxyaromatic ethers by contacting an oxidizing agent with an acylaromatic ether in the presence of an acid catalyst.
4526704 Multiring liquid crystal esters  
Compounds of the formula ##STR1## wherein n is 0 or 1; one of X1 and X2 is --COO-- or --OOC-- and the other is a single covalent bond or --CH2 CH2 --; X3 and X4 individually are a single covalent...
4520199 Alkoxy substituted phenoxy alkanoic acid esters  
3-Alkoxy-4-substituted phenoxy alkanoic acid esters, derivatives thereof, and the use thereof for the control of weeds.
4511731 2-Ethoxyethyl 2-(4-hydroxyphenoxy)-propanoate  
Preparation of monoethers of dihydroxybenzenes from an isopropenylphenol and an alkylating agent and thereafter oxidizing in the presence of an acid catalyst.
4490552 Preparation of aryl esters by decomposing an aryl thallium carboxylate  
A novel process for the preparation of aryl esters of organic carboxylic acids in high isomer purity by decomposing a compound of the formula ##STR1## wherein Ar is an aryl radical, X is an...
4489207 Preparation of 2-(hydroxyphenoxy)-carboxylates  
2-(Hydroxyphenoxy)-carboxylates are prepared by a process wherein a dihydroxybenzene (A) is reacted with a 2-halo-fatty acid ester (B) of an alcohol, phenol or oxime of no more than 10 carbon...
4481149 Fluorine-containing phenyl benzoate compounds, and their production and use  
Fluorine-containing phenyl benzoate compounds which have the general formula: ##STR1## wherein R is a C1 -C12 perfluoroalkyl group, a C1 -C12 alkyl group, a C1 -C12 alkoxy group, a C2 -C13...
4479900 1-Carbalkoxyalkyl-3-aryloxy-4-(2'-carboxyphenyl)-azetidin-2-ones  
Compounds of the formula: ##STR1## wherein R1 is lower alkyl or benzyl. R2 is lower alkoxy, benzyloxy, or the group ##STR2## where R3 is lower alkoxy; and Ar is phenyl optionally substituted with...
4478741 4-Alkylcyclohexyl 4-alkanoyloxybenzoate and liquid crystal composition thereof  
A liquid crystal composition contains a compound of the formula: ##STR1## wherein R and R' are straight chain alkyl groups each having 1 to 7 carbon atoms.
4473487 4-Fluorobiphenyl derivatives, their preparation, and dielectrics and electro-optical display element containing them  
4-Fluorobiphenyl derivatives of the formula (I) ##STR1## wherein X is --CO--O-- or --O--CO--; Z is 1,4-phenylene or 1,4-cyclohexylene; and R is alkyl, alkoxy or alkanoyloxy, each of 1 to 8 atoms,...
4453005 Process for preparing substituted phenylalkenoic acids  
Substituted phenylalkenoic acids and esters of the formula: ##STR1## having useful pharmaceutical activity and processes for their preparation are disclosed.
4438268 Liquid crystal substances  
This invention relates to new nematic liquid crystal substances for electro-optical components.The object of this invention is to create substances for electro-optical components combining...
4424394 Manufacture of arylacetic acids and their esters  
Arylacetic acids and their esters, of the formula Ar(CH2 -COOR)n (where Ar=aryl, R is H or a hydrocarbon radical, and n is 1 or 2) are manufactured by carbonylation of halomethylaryl compounds...
4418206 9-Deoxy-9-methylene derivatives of (dl)-16-phenoxy and 16-phenoxy substituted prostatriene compounds  
Novel compounds of the formula: ##STR1## wherein A is CHOH, CHO or COOR; R is hydrogen or a lower alkyl group of 1 to 4 carbon atoms; and the pharmaceutically acceptable, non-toxic salts of...
4415746 16-Aryloxy-17,18,19,20-tetranorprostanoic acids and derivatives  
This disclosure describes novel 16-aryloxy-17,18,19,20-tetranoprostanoic acids and derivatives thereof useful as bronchodilators and as hypotensive and contraceptive agents.
4412958 Stereospecific synthesis of 5-phenyl-2S-pentanol  
5-Phenyl-2S-pentanol is synthesized stereospecifically from S ethyl lactate. The method provides easily purified 5-phenyl-2S-pentanol useful in the synthesis of central nervous system active (CNS)...
4410519 Tetraline derivatives, their production and pharmaceutical compositions containing them  
An optically active or racemic 2-amino-5-hydroxy-1,2,3,4-tetrahydronaphthalene wherein the nitrogen atom of the amino group carrier two alkyl groups, one of which is unsubstituted and the other is...
4406814 Liquid crystalline materials and optical displays utilizing same  
Disclosed is a new family of Liquid Crystalline Materials for use in optical display devices having the general formula: ##STR1## The members of the family of materials are characterized by having...
4380661 2-[4-(4-Substituted phenoxy)phenoxy]propanoic acids and esters  
2-[p-(p-substituted phenoxy)phenoxy]propionyl oximes, processes for their preparation, herbicidal compositions containing these oximes and methods of use of the herbicidal compositions are disclosed.
4370497 Oxidation process using tellurium oxide catalysts  
The present invention relates to the use of telluroxides as mild and selective oxidizing agents serving to oxidize certain functions, notably >CS groups, in the presence of other relatively...
4369329 Substituted tartaric acid esters, a process for their production and their use as polymerization initiators  
Ethers of 1,2-disubstituted tartaric acid esters proved to be excellent initiators for thermally initiatable radical polymerization reactions. They show a high reactivity even in low...
4368135 Anisotropic compounds with negative or positive DC-anisotropy and low optical anisotropy  
Anisotropic compounds with negative or positive DCA and Δn≤0.2 have the formula (1) ##STR1## in which R1 and R2 l are independently hydrogen, alkyl, alkoxy having 1 to 12 carbon atoms...
4365032 Monoester compound of 2,2-alkylidene bis(4,6-di-substituted phenol)  
A monoester compound of a 2,2'-alkylidene bis(4,6-di-substituted phenol) useful as an antioxidant in synthetic polymers having good resistant to oxides of nitrogen fumes, represented by the...
4362891 Alkanoic acid derivatives  
An alkanoic acid compound is disclosed of formula: ##STR1## and certain of its physiologically acceptable salts and esters. The alkanoic acid compound and its salts and esters have an unexpectedly...