Class 204/157.88 - Oxygen other than as part of a carboxylic acid or derivative moiety

Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Subject matter wherein the carboxylic acid or derivative
No. of patents: 39
Last issue date: 01/25/2000

Number	Title	Issue Date
6017426	Process for the preparation of ceramide-type compounds A process for the preparation of ceramide-type compounds by reacting, an amino alcohol with a carboxylic acid of defined structures, where the reaction is conducted with irradiation with microwaves and at a temperature of less than or equal to 180° C....	01/25/2000
5994110	Methods for direct synthesis of compounds having complementary structure to a desired molecular entity and use thereof Compounds which possess a complementary structure to a desired molecule, such as a biomolecule, in particular polymeric or oligomeric compounds, which are useful as in vivo or in vitro diagnostic and therapeutic agents are provided. Also, various methods ...	11/30/1999
5601184	Method and apparatus for use in photochemically oxidizing gaseous volatile or semi-volatile organic compounds An apparatus for photochemically oxidizing gaseous volatile or semi-volatile organic compounds includes: a) a reactor vessel having a plurality of reaction chambers provided therein, the reaction chambers having respective chamber lining sidewalls; b) a s...	02/11/1997
5143589	Perfluoropolyethers containing a halogen different from fluorine and having an acid end group Perfluoropolyethers having an acid end group of the type of acyl fluoride (or chloride) or a carboxylic group or derivatives thereof, the other end group being a perfluoroalkyl containing one or two halogen atoms different from fluorine, are prepared by p...	09/01/1992
5141627	Chelators whose affinity for calcium ion is increased by illumination The present invention relates to a group of organic chelators whose affinity for calcium ion in solution is increased by electromagnetic radiation. Specifically, the chelators are related to BAPTA and utilize the addition of an electron-withdrawing group ...	08/25/1992
5120412	Preparation of hypericin A process for preparing hypericin comprises oxidative dimerization of emodin anthrone and conversion of the intermediate protohypericin to hypericin by irradiation with visible light....	06/09/1992
4996069	Process for the preparation of flavor and fragrance materials The invention relates to a process for the preparation of flavor and fragrance materials by oxidizing a solution of carotene in an aprotic solvent under the influence of ultra-violet light. The carotene may be synthetic or obtained by extraction with an a...	02/26/1991
4921928	Piezoelectric polymer materials from epoxy resins and polytetramethyleneoxide-di-p-aminobenzoate A piezoelectric polymer material comprising a cured product of a composition comprised of an epoxy resin having at least two epoxy groups in the molecules, a compound having a molecular weight not less than 1200 and containing defined numbers of amino gro...	05/01/1990
4906343	Process for the photochemical production of ଱-aryl propionic acid The invention resides in a novel photochemical process for the production of ଱-aryl propionic acids by the subjection of a solution in an organic solvent of the corresponding ଱-haloaryl alkyl ketones to irradiation with light having a waveleng...	03/06/1990
4904417	Fluorine-containing polyether and process for preparing the same A fluorine-containing polyether of the formula: A--X--A' wherein A and A' are the same or different and are each --COF, --COCl or --COOH, and X is --CF2 CF2 --Rf --O--Cm F2m --O--Rf 'CF2	02/27/1990
4898655	Method for racemization of optically active chrysanthemic acid or its derivatives Optically active chrysanthemic acid or its derivatives of the formula ##STR1## (wherein X represents a hydroxyl group, a halogen atom, a C1-20 alkoxy group or a 2,2-dimethyl-3-isobutenyl-cyclopropane carboxyl group and * mark shows asymmet...	02/06/1990
4849076	Continuous oxidation method A method for oxidizing a substrate which is oxidizable by singlet oxygen is discolded. The first step of the method comprises establishing a flow to and from each of a plurality of successive closed zones, each of which zones (a) contains a quantity of a ...	07/18/1989
4837364	Processes for preparing pentafluoroethoxy- and pentafluoroethylthiobenzene drivatives A process for the preparation of (pentafluoroethoxy)- and (pentafluoroethylthio)benzene derivatives either from phenol, thiophenol or from halobenzene. A halobenzene is reacted with trifluoroethanol or a phenol or a thiophenol is reacted with a compound o...	06/06/1989
4810338	Side chain liquid crystalline polymers exhibiting nonlinear optical response This invention provides novel side chain liquid crystalline polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in electrooptic light modulator devices. An invention side chain liquid crystalline polymer...	03/07/1989
4749726	Internal stabilization of polycarbonate resins by two stage radiation process A new polycarbonate copolymer resin is formed by internal generation of stabilizers bound to the polymer chain. Irradiation of a solid piece or a deoxygenated solution of the resin at a first frequency below 300 nm generates 2 to 8 mol percent of phenyl s...	06/07/1988
4556732	Pentenoic acid and its preparation Novel 3-formyl-4-methyl-pent-3-ene-1-oic acid of the formula ##STR1## and a process for its preparation and intermediates and a process for the preparation of compounds of the formula ##STR2## wherein W is selected from the group consisting of h...	12/03/1985
4545872	Method for reducing carbon dioxide to provide a product A process and apparatus for reducing carbon dioxide to at least one useful product includes two redox couple electrolyte solutions separated by a first membrane having photosensitizers. The carbon dioxide to be reduced is provided to a second membrane whi...	10/08/1985
4466870	Organic sonochemistry process The method of causing or promoting chemical changes involving the step of subjecting reactants to ultrasonic energy as a key treatment step, including methods of: (1) reducing aryl halides by treating a mixture of aryl halide and lithium aluminum hydride ...	08/21/1984
4461687	Processes for the preparation of pure enantiomers of bicyclo(2,2,2)oct-5-en-2-ones New bicyclo[2.2.2]oct-5-en-2-ones of the formulae Ia and Ib in the form of pure enantiomers and processes for preparing them are described. The compounds are used for the preparation of pure enantiomers of the formula V by sensitized photoreaction or of p...	07/24/1984
4429128	Carbapenams and carbapen-2-ems and process therefor Carbapenam-3-carboxylic acids and carbapen-2-em-3-carboxylic acids substituted at the 1-position with an oxo, a hydroxy or an acetoxy group, variously substituted at the 2-position with such groups as methyl, acetoxymethyl, methanesulfonyloxy, alkoxy, alk...	01/31/1984
4410721	Process for the preparation of cyclopropene intermediates A novel cyclopropene-carboxylate of the formula ##STR1## wherein R is alkyl of 1 to 6 carbon atoms and their preparation and a process using the compounds of formula I to obtain cis compounds of the formula ##STR2##...	10/18/1983
4351346	Process for the preparation of aromatic substances Aromatic substances to be applied to tobacco to improve aroma characteristics are prepared by exposing an alcoholic extract, which contains carotenoids and may additionally contain diterpenes and has been isolated from fresh tobacco plants, to ultraviolet...	09/28/1982
4348264	Photocatalyzed process for producing carbapenams and carbapen-2-ems Carbapenam-3-carboxylic acids and carbapen-2-em-3-carboxylic acids substituted at the 1-position with an oxo, a hydroxy or an acetoxy group, variously substituted at the 2-position with such groups as methyl, acetoxymethyl, methanesulfonyloxy, alkoxy, alk...	09/07/1982
4338170	Isomerization of ଲ-γ-unsaturated alcohol or its ester A cis-trans isomerization of a cis-ଲ-γ-unsaturated alcohol or its ester having the formula ##STR1## wherein R1 represents hydrogen atom or a C1 -C5 alkyl group; X represents hydrogen atom or ##STR2## ...	07/06/1982
4334969	Photochemical process for the synthesis of strobilurin Process for stereoselective synthesis of strobilurin in the (E) configuration, starting from cinnamaldehyde and 2-oxobutyric acid....	06/15/1982
4299973	Alkyl 3,3-dimethyl-2-(2-hydroxy-2-methyl-propyl)-1-cyclopropene-1-carboxylates A novel cyclopropene-carboxylate of the formula ##STR1## wherein R is alkyl of 1 to 6 carbon atoms and their preparation and a process using the compounds of formula I to obtain cis compounds of the formula ##STR2##...	11/10/1981
4260464	Process for the preparation of 17଱-(3-iodobenzoyloxy)-9଱-chloro-4-pregnene-3,20-diones and their D-homo homologs Novel 17଱-(3-iodobenzoyloxy)-9଱-chloro-4-pregnene-3,20-diones and the D-homo homologs thereof, of the formula ##STR1## wherein n is 1 or 2; C1 -----C2 represents a C--C single or C.dbd.C double bond; R1 is hydr...	04/07/1981
4252729	Steroids and process for their manufacture The present disclosure is concerned with 9଱-chloro-17-(m-iodobenzyloxy) steroids and a process for their manufacture. The subject compounds are useful as intermediates in the synthesis of pharmacologically-active substances and have themselves been ...	02/24/1981
4188273	Process for preparing novel thin films A thin film of less than 300 microns in thickness can be obtained by crosslinking a surfactant with plasma or radiation. This thin film is as high in strength as an ordinary plastic film, and is usable as a substance-separating film, a substance-protectin...	02/12/1980
4180446	Method of preparing dihalogen vinyl cyclopropanecarboxylic acid esters A method of preparing certain dihalogen vinyl cyclopropane carboxylic acid esters of the formula ##STR1## wherein R is an alkyl moiety and X is chlorine or bromine by exposing a dihalogen vinyl dihydrofuran of the formula to light, e.g., ultraviolet...	12/25/1979
4152230	Photooxidation process A photochemically initiated oxidation process for organic materials using only catalytic quantities of the photochemical agent by conducting the reaction in the presence of a compound of a variable valency metal (especially copper) in order to trap the ph...	05/01/1979
4123219	Chemical storage of radiant energy A method for the chemical storage of radiant energy in which substituted naphthalenes undergo photochemical dimerization by exposure to radiant energy to form 1,2,2a,7,8,12b-hexahydro-1,8,2,7-ethanedihylidenedibenzo[a,e]cyclobuta[c]c yclooctenes, whic...	10/31/1978
4097678	Ɗ⁹ (11) -5଱-D-homo-20-keto steroids 3଱-Hydroxy and 3଱-acyloxy- Ɗ9(11) -5଱-D-homo-20-ketopregnenes of the formula ##STR1## wherein R is hydrogen or acyl, R1 is hydrogen or methyl and R2 is methyl or ethyl, are produced by esterifying a...	06/27/1978
4087342	Method of simultaneously carrying out plurality of photochemical reactions A photochemical reaction system is provided in which a single polychromatic light source is used to simultaneously irradiate a plurality of photochemical reactions with different regions of the spectrum. In this system, the reactions are carried out in se...	05/02/1978
4039574	13-Hydroxy-15-deoxy-prostaglandins This disclosure describes 13-hydroxy-15-deoxy-prostaglandins which exhibit multiple biological responses even at low doses....	08/02/1977
4013690	Organic compounds This invention provides compounds of formula I, ##STR1## wherein R1 is alkyl of 1 to 10 carbon atoms, cycloalkyl of 3 to 8 carbon atoms or phenyl, and R2 is hydrogen or alkyl of 1 to 4 carbon atoms, Useful as anti-phlogistics, anti-p...	03/22/1977
3994952	Anti-tricyclo[6.4.0.0.²,7 ]1,4,7,10-tetracarboxy-2,5,8,11-tetrahydroxy-dodeca-4,10-diene and esters thereof, a process for their preparation, and their use in preparing linear polyesters Compounds of formula I ##SPC1## wherein R denotes hydrogen or an aliphatic or aromatic radical. These compounds are prepared by irradiation of succinylsuccinic acid or diesters thereof, in the crystalline state, with UV light rays or with γ-radiatio...	11/30/1976
3994675	Chemical storage of radiant energy A system for the chemical storage of radiant energy in which either: A. 1,8-diaryl-1a,2,7,7a-tetrahydro-1,2,7-metheno-1H-cyclopropa[b]naphthalenes (1) are converted on heating to 1,2-diaryl-2a,8b-dihydrocyclobuta[a]naphthalenes (2) or 8,9-diaryl-benz...	11/30/1976
3963765	Preparation of derivatives of cholesterol Process for the production of hydroxylated derivatives of cholesterol and 7-dehydrocholesterol which comprises subjecting a saturated unsubstituted or substituted derivative of cholestane, dissolved in a suitable solvent, in the presence of peracetic acid...	06/15/1976

PatentStorm

Bizarre Patents

PatentStorm News

Class 204/157.88 - Oxygen other than as part of a carboxylic acid or derivative moiety