Patents in Class 548/444

Matches 101 - 150 out of 217

< 1 2 3 4 5 >

Match	Document	Document Title
101	4841050	Carbazole containing benzopyrans Benzopyrans of the formula ##STR1## where X is a radical ##STR2## and R 1 , R 2 , R 3 , R 4 and the ring A have the meanings stated in the description, a process for their preparation, and their...
102	4822811	Carbazole lipoxygenase inhibiting compounds, compositions and use Compounds of the formula: ##STR1## wherein R1 is hydrogen, C1 to C4 alkyl, C2 to C4 alkenyl, or NR2R3, wherein R2 and R3 are independently selected from hydrogen, C1 to C4 alkyl and hydroxyl, but...
103	4814462	Polyoxyalkylene carbozole adduct A polyoxyalkylene carbazole adduct represented by the following formula I: ##STR1## wherein R stands for at least one member selected from the group consisting of H, CH 3 and C 6 H 5 , R' for at...
104	4774331	Process for ortho-cyanation of phenols or phenylamines A process for ortho-cyanation of phenols or phenylamines which comprises reacting a phenyl compound having hydroxy or optionally substituted amino or cyclic amino, of which ortho position is...
105	4760085	Use of D,L-and D-carazolol as anti-glaucoma agent The present invention is concerned with the topical use of D,L- and D-carazolol and of the pharmacologically acceptable salts in the therapy of glaucoma. The present invention is also concerned...
106	4748174	Water soluble salts of an NSAID with meglumine/glucamine The water soluble acid addition salts of an NSAID, such as acetylsalicylic acid, fenbufen, diflunisal, piroxicam, naproxen, or the like, with either glucamine or meglumine (N-methylglucamine) are...
107	4737587	Colorless carbazole dyes for recording materials Disclosed is a colorless dye for use in recording materials comprising a compound represented by the general formula: ##STR1## Said recording materials are of the types which utilize a color...
108	4707548	Bisisoindoline pigments Novel bisisoindoline pigments of the formula (I) ##STR1## where the radicals A are identical or different radicals of a methylene-active compound, X is a divalent radical and the rings L are each...
109	4656257	Disazo compound having an anthraquinone nucleus A disazo compound is provided which is represented by the formula (I): ##STR1## (wherein, R 1 and R 2 each stands for hydrogen, a lower alkyl group with 1-4 carbon atoms, a substituted or...
110	4652672	Tartaric acid monoesters of alkanolamines For the analytical and preparative separation of the optical isomers of optically active alkanolamines into their optically pure antipodes a new resolution method is presented which involves an...
111	4636820	Compositions, process and systems 3-[(Substituted-amino)(aryl or heteroaryl)methyl]-1H-indoles which are useful as color-formers in pressure-sensitive carbonless duplicating systems and thermal marking systems are prepared by...
112	4632893	Electrophotographic recording material containing selected dithioke topyrrolopyrroles Compounds of formula (1) ##STR1## wherein A and B are identical or different alkyl, aralkyl or cycloalkyl groups or carbocyclic or heterocyclic aromatic radicals, R 1 and R 2 are hydrogen atoms...
113	4601797	Electrochemical carboxylation of p-isobutylacetophenone and other aryl ketones Hydroxyibuprofen is produced in good yield by reduction of p-isobutylacetophenone at the cathode in the presence of carbon dioxide. Hydroxyibuprofen is readily hydrogenolyzed to ibuprofen....
114	4540523	Phenylalkylamino-styryl dyestuffs Cationic styryl dyestuffs of the formula ##STR1## in which A 1 is an alkyleneoxy or alkyleneamino radical, D 1 is a direct bond or divalent radical, An is an anion, and the terminal phenyl...
115	4535172	3(Ether and thioether) 3-(4-dialkylaminophenyl) phthalides This invention relates to 3-aryl or heteroaryl-3-alkoxy, phenoxy-, alkylthio- or phenylthiophthalides useful as color formers, particularly in carbonless duplicating and thermal marking systems,...
116	4518799	Processes for the preparation of hydratropic acids Novel processes for making arylpropionic acids are described. One process comprises carboxylating particular Grignard compounds which are the products of a catalyzed reaction between corresponding...
117	4503067	Carbazolyl-(4)-oxypropanolamine compounds and therapeutic compositions Carbazolyl-(4)-oxypropanolamine compounds of the formula ##STR1## wherein R 1 is hydrogen, lower alkanoyl or aroyl; R 2 is hydrogen, lower alkyl or arylalkyl; R 3 is hydrogen or lower...
118	4501908	2,3-Isopropylidene ribonic acid, 1,4-lactones Racemic carboxylic acids are resolved into their enantiomers using optically active enantiomers of four lactones as resolving agents. The four lactones are 2,3-isopropylidene-ribonic...
119	4495352	Heterocyclic substituted aryloxy 3-indolyl-tertiary butylaminopropanols 1-Aryloxy-3-[(3-indolyl)-tert.-butyl]amino-2-propanols having a heterocyclic aryl-attached substituent or aryl-fused heterocyclic ring are antihypertensive agents having vasodilator and adrenergic...
120	4465753	Indoline electrophotoconductor An electrophotoconductor of high sensitivity and durability comprising a photosensitive layer containing an indoline compound of the general formula ##STR1## wherein A represents an aromatic...
121	4426380	Benzofuran-2-ones and pharmaceutical compositions The invention relates to novel furans, especially benzofuranones of the general formula ##STR1## in which R 1 represents hydrogen or an aliphatic radical, R 2 represents an amino group...
122	4408043	Fluorocarbon surfactants Fluorinated compounds of the formula ##STR1## are disclosed. The cationic amine compounds are useful as surfactants.
123	4404377	Heterocyclic/aromatic fluorocarbon surfactants Heterocyclic/aromatic fluorinated compounds of the formula ##STR1## are disclosed. The cationic compounds are useful as surfactants.
124	4400383	Treatment of anxiety This invention is directed to the use of a carbazole compound 9-[3-(3,5-cis-dimethylpiperazino)propyl]carbazole, its salts, especially pharmaceutically acceptable salts, and solvates such as...
125	4379160	Carbazole compounds and medicinal use thereof This invention is directed to a carbazole compound 9-[3-(3,5-cis-dimethylpiperazino)propyl]carbazole, its salts, especially pharmaceutically acceptable salts, and solvates such as hydrates,...
126	4369326	Carbazolylmethane compounds Carbazolylmethane compounds of the formula ##STR1## wherein one of Y 1 , Y 2 and Q represents a 3-carbazolyl radical of the formula ##STR2## and each of the other two independently represents an...
127	4342688	Process for the manufacture of an N-hydroxyalkylcarbazole The process for manufacture of an N-hydroxyalkylcarbazole of the formula ##STR1## wherein R is H, CH 3 or C 2 H 5 and n is a number from 0 to 4 which comprises reacting carbazole with an epoxide...
128	4341402	Systems employing indole color formers 3-[(Substituted-amino)(aryl or heteroaryl)methyl]-1H-indoles which are useful as color-formers in pressure-sensitive carbonless duplicating systems and thermal marking systems are prepared by...
129	4332723	Process for preparing N-vinyl carbazoles N-Vinyl carbazoles are prepared by reacting an N-unsubstituted carbazole with a dihaloethane in the presence of a phase transfer catalyst followed by reaction with an aqueous solution containing a...
130	4317832	Indolyl and methylindolyl substituted aminoalkyl guanidines Compounds corresponding to the formula ##STR1## are disclosed, wherein Alk represents a C 2 -C 5 -alkylene groups optionally substituted by a hydroxy group and Ar represent an optionally...
131	4283077	Indole color former Aldehyde or ketone 0-[(3-indolyl)(aryl or heteroaryl)methyl]oximes which are useful as color-formers in pressure-sensitive carbonless duplicating systems and thermal marking systems are prepared by...
132	4264500	Process of making 6-chloro-α-methyl-carbazole-2-acetic acid The aromatization of (6-chloro-1,2,3,4-tetrahydro-2-carbazolyl)-methyl-malonic acid dialkyl ester, utilizing chlorine and subsequent conversion of the resulting product to...
133	4250294	Polymers obtained from polynitroaromatic compounds A polymer having aromatic or heterocyclic rings as the only structural elements said aromatic or heterocyclic rings containing at least two nitro groups is disclosed as well as a method of...
134	4234487	Process of making a carbazole acetic acid A process for preparing 6-chloro-α-methylcarbazole-2-acetic acid and esters thereof by the steps of: (a) reacting 6-chloro-1,2,3,4-tetrahydrocarbazole-2-one with a...
135	4231942	Styryl compounds There are described new styryl compounds of the formula ##STR1## in which X is CH 2 , --O--, --S-- or the grouping NR 3 wherein R 3 is hydrogen or an alkyl group having 1 to 4 carbon atoms,...
136	4226774	Carbazole melonates A process for the preparation of α-methyl-carbazole-2-acetic acids, which comprises reacting an α-methyl-3-oxocyclohexane malonic acid di-lower alkyl ester with a substituted phenylhydrazine, and...
137	4209638	Preparation of therapeutic agents Disclosed is a process for increasing the proportion of a desired enantiomer of a 2-arylpropionic acid which comprises heating at a temperature of at least 80° C. a mixture comprising an inert...
138	4208501	Carbazolyl diacetylenic polymers Novel carbazolyl diacetylenic monomers and polymers are provided. The monomers have the structure ##STR1## where "m" and "n" are integers of from 0 to 10, X and Y are independently selected from...
139	4193923	Tetrahydro 2-carbazolyl methyl malonate derivatives A process for the preparation of α-methyl-carbazole-2-acetic acids, which comprises reacting an α-methyl-3-oxocyclohexane malonic acid di-lower alkyl ester with a substituted phenylhydrazine, and...
140	4191690	Substituted 3,6-diaminophthalides Substituted 3,6-diaminophthalides of the formula ##STR1## wherein each of R 1 , R 2 and R 3 independently represents alkyl of not more than 12 carbon atoms which is unsubstituted or substituted...
141	4178289	Carbazole acetic acid derivatives A process for the preparation of 6-chloro-α-methylcarbazole-2-acetic acid from 6-chloro-α-hydroxy-α-methylcarbazole-2-acetic acid and/or 6-chloro-α-methylene-2-carboxylic acid, is described....
142	4158007	Carbazole methyl malonates A process for the preparation of α-methyl-carbazole-2-acetic acids, which comprises reacting an α-methyl-3-oxocyclohexane malonic acid di-lower alkyl ester with a substituted phenylhydrazine, and...
143	4150031	Hydroxy methyl carbazole acetic acid and esters A process for the preparation of 6-chloro-α-methylcarbazole-2-acetic acid from 6-chloro-α-hydroxy-α-methylcarbazole-2-acetic acid and/or 6-chloro-α-methylene-2-carboxylic acid, is described....
144	4146542	Dihydrocarbazole acetic acid and esters thereof A process for preparing 6-chloro-α-methylcarbazole-2-acetic acid and esters thereof by the steps of: (a) reacting 6-chloro-1,2,3,4-tetrahydrocarbazole-2-one with a...
145	4139560	Nonylamines New nonadienylamines, nonatrienylamines and nonylamines are described, as well as a new process for their manufacture by reacting a 1,3-diolefine with a Schiff's base in the presence of certain...
146	4134889	Manufacture of glycinonitriles Manufacture of glycinonitriles by reacting amines with carbonyl compounds and hydrogen cyanide under specific reaction conditions in respect of the temperature, reaction time and hydrogen cyanide...
147	4125534	Carbazolyl diacetylenic compounds Novel carbazolyl diacetylenic monomers and polymers are provided. The monomers have the structure ##STR1## where "m" and "n" are integers of from 0 to 10, X and Y are independently selected from...
148	4111850	Organic photoconductors and methods Carbazole-based molecular photoconductive charge-transfer complexes are synthesized which are easily applied to electrode substrates. The carbazole-based complexes comprise 3-substituted carbazoles...
149	4061655	3,6-Dicarboximidamidecarbazoles Compounds having the formula ##STR1## wherein R 1 is aryl and R 2 is alkyl or arylalkyl, have useful antiinflammatory activity.
150	4056539	Naphthalide indicator dyes This invention relates to indole (na) phthalide indicator dyes substituted with a particular class of hydrogen bonding groups, such as, perhaloalkyl carbinols. These dyes are useful as optical...

Matches 101 - 150 out of 217

< 1 2 3 4 5 >