U.S. patents available from 1976 to present.
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Class 548/543 - Chalcogen bonded directly to a ring carbon of the five-membered hetero ring which is adjacent to the ring nitrogen (e.g., 2-pyrrolidones, etc.)


Subclass of Class 548 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein chalcogen (i.e., oxygen, sulfur, selenium,
No. of patents: 422
Last issue date: 02/14/2012


                    11  
NumberTitleIssue Date
4087270Herbicidal-N-(3-amino-2,4-dinitro-6-trifluoromethylphenyl)-pyrrolidones
The present invention provides herbicidal-N-(3-amino 2,4-dinitro-6-trifluoromethylphenyl)-pyrrolidones having the formula: ##STR1## where X is oxygen or sulfur, and R, R1 and R2 are selected from among H or lower alkyl, of up to...
05/02/1978
4086234Process for the preparation of tertiary amines
Certain tertiary amines useful as pharmaceuticals are prepared in improved yields by condensing a cyclic secondary amine with a primary alkyl halide in an aqueous medium in the presence of an acid acceptor....
04/25/1978
4086356Fungicidal-N-(3-halo-2,6-dinitro-4-trifluoromethylphenyl)-pyrrolidones
Fungicidal-N-(3-halo-2,6-dinitro-4-trifluoromethylphenyl)-pyrrolidones having the formula: ##STR1## where X is a halogen, Y is oxygen or sulfur, and R is H or lower alkyl, of up to 4 carbon atoms, Are prepared by reacting a 2,4-dihalo-3,5-dinitrobenzotrif...
04/25/1978
4081456Bis-lactam derivatives
Gamma-alkyl-gamma-butyrolactones having an alkyl substituent of at least 16 carbon atoms in length, preferably at least 25 carbon atoms, are formed by reacting a monoolefin with a carboxylic acid in the presence of a reducible metal ion of higher-valent f...
03/28/1978
4073778Crown ether activated lactam polymerization
The anionic polymerization of lactam is activated by the presence of crown ethers which are macrocyclic polyethers having the ability to form stable complexes with salts....
02/14/1978
4069038Acyclic and alicyclic N-substituted halo-2-pyrrolidinones and their utility as herbicides
Acyclic and alicyclic N-substituted halo-2-pyrrolidinones having the formula ##STR1## in which Q is oxygen or sulfur; R is lower alkyl, haloalkyl, alkenyl, cycloalkyl, cycloalkylalkyl, benzyl and chlorobenzyl; X is hydrogen or chlorine, Y is chl...
01/17/1978
40468986-Aryl-pyrrolo[1,2-a]Imidazole derivatives which possess anti-hypertensive activity
6-Aryl-pyrrolo[1,2-a]imidazole derivatives, processes for their manufacture, pharmaceutical compositions containing them and a method of using them to lower blood pressure in warm-blooded animals. Representative of the compounds disclosed is 6-(2,6-d...
09/06/1977
4041041Acetylene derivatives of amino acids
Novel compounds of the following general formula are useful pharmacologic agents: ##STR1## R is selected from hydrogen, alkylcarbonyl wherein the alkyl moiety contains from 1 to 4 carbon atoms, alkoxycarbonyl wherein the alkoxy moiety contains f...
08/09/1977
4039549Olefinic derivatives of amino acids
Novel compounds of the following general formula are useful pharmacologic agents: ##STR1## R is selected from hydrogen, alkylcarbonyl wherein the alkyl moiety contains from 1 to 4 carbon atoms, alkoxycarbonyl wherein the alkoxy moiety contains f...
08/02/1977
40227912-Aminomethyl-3,4-dihydronaphthalenes
Compounds of the formula ##STR1## and pharmaceutically acceptable salts thereof, wherein X and Y are independently H, F, Cl, Br, alkyl having up to four carbons, or alkoxy having up to four carbons, but X and Y are not both H, and Z is a seconda...
05/10/1977
40215672-Methoxy-benzamide derivatives
The invention provides novel 2-methoxy-benzamide derivatives of the formula: ##STR1## in which n is 1 or 2; R1 represents a cycloalkyl-alkyl radical of formula: (CH2)m -CH-A- , a phenylalkyl radical of formula ##...
05/03/1977
4020080Oxadiazolylphenyl aromatic ester compounds and their use as ultraviolet stabilizer in organic compositions
The invention relates to oxadiazolylphenyl aromatic ester compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing an amount of a heterocyclic phenyl este...
04/26/1977
40124954-(Polyalkoxyphenyl)-2-pyrrolidones
4-(Polyalkoxyphenyl)-2-pyrrolidones of the formula ##STR1## wherein R1 and R2 each are hydrocarbon of up to 18 carbon atoms or alkyl of 1-5 carbon atoms substituted by halogen, OH, COOH, alkoxy, alkoxycarbonyl, carboxamido or am...
03/15/1977
40102735-Sulfamoylbenzoic acid derivatives carrying a heterocyclic substituent
5-Sulfamoylbenzoic acids substituted in 4-position by various substituents and in 3-position by a cyclic amino group having sali-diurectic properties, and a process for their manufacture....
03/01/1977
4000159Preparation of N,N-disubstituted thioamides
N,N-disubstituted thioamides are prepared by contacting N,N-disubstituted amides with carbon disulfide or carbon oxysulfide under suitable reaction conditions. In a preferred embodiment, the reactants are contacted at a temperature of at least about 200°...
12/28/1976
3988350Low molecular weight substituted phenol-lactam-substituted phenol complexes from lactams and substituted monohydroxy phenolic compounds
A low molecular weight complex of a lactam and a substituted phenolic compound having the formula ##SPC1## Wherein n is an integer of 3 to 5; W is hydrogen or alkyl having from 1 to 8 carbon atoms including cycloalkyl substituents; each R and R', R2
10/26/1976
3968104Extremely low viscosity adducts of lactams with alcohols
Adducts useful as solvents are prepared from lactams and an aliphatic, cycloaliphatic or araliphatic alcohol or thioalcohol. Solutions of the adducts in the lactam, alcohol or thioalcohol are also disclosed as well as a process for preparing the adducts a...
07/06/1976
3960927Olefinic derivatives of amino acids
Novel compounds of the following general formula are useful pharmacologic agents: ##EQU1## R is selected from hydrogen, alkylcarbonyl wherein the alkyl moiety contains from 1 to 4 carbon atoms, alkoxycarbonyl wherein the alkoxy moiety contains f...
06/01/1976
3959356Acetylene derivatives of amino acids
Novel compounds of the following general formula are useful pharmacologic agents: ##EQU1## R is selected from hydrogen, alkylcarbonyl wherein the alkyl moiety contains from 1 to 4 carbon atoms, alkoxy-carbonyl wherein the alkoxy moiety contains ...
05/25/1976
3959311Oxotremorine antagonists
A new class of amino-imide compounds is disclosed in which a 2-oxo-cycloalkylimide group and an amino group are joined by a chain containing acetylenic unsaturation. The compounds are effective to antagonize the tremorogenic effect of oxotremorine and pos...
05/25/1976
3956314Derivatives of 2-pyrrolidinone
Phenyl-2-pyrrolidinones of the formula ##SPC1## Wherein R is a halogen or trifluoromethyl, R1 is lower alkyl, lower alkenyl, lower alkynyl, phenyl or halogen-substituted phenyl, R2 is hydrogen, lower alkyl or phenyl and R3...
05/11/1976
3940258Method for controlling aquatic weeds with N-phenylalkyl-γ-hydroxybutyramide
Process of employing as herbicides N-phenylalkyl - γ hydroxybutyramide or methyl or halo derivatives thereof wherein the methyl or halo substituent occupies any one of two of the ortho-, meta- and para-positions of the phenyl ring; said compounds having ...
02/24/1976
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