Class 552/297 - Nitrogen or halogen bonded directly to the polycyclo ring system

Subclass of Class 552 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein the polycyclo ring system has halogen
No. of patents: 33
Last issue date: 04/28/1998

Number	Title	Issue Date
5744623	Terpene-quinones with antitumour activity Terpene-quinone with antitumor activity defined from a cyclocondensation reaction of Diels-Alder, used to obtain families or series of said compounds having a new structure and presenting a cytotoxic activity to cellular cultures P-388, A-549, HT-29 and M...	04/28/1998
5679808	Tertiary non-linear optical material The present invention discloses a tertiary non-linear optical material comprising a quinone derivative expressed by any one of the general formulas: ##STR1## wherein R1, R2, R3, R4, R5 and R...	10/21/1997
5639718	Multifunctional viscosity modifiers for lubricating oil compositions with improved dispersancy and antioxidancy derived from adducts of quinone An oil-soluble lubricating oil and fuel additive, useful as a multifunctional viscosity modifier comprising succinimide and other amine-containing polymers reacted with a quinone or substituted quinone adducts. Suitable polymers are those containing prima...	06/17/1997
5175318	Process for the preparation of quinones Phenols are oxidated to quinones with hydrogen peroxide in the presence of catalytic amounts of bromine, iodine, hydrogen bromide and hydrogen iodide....	12/29/1992
5175319	Naphthoquinone derivatives Novel antiprotozoal naphthoquinones having the general formula ##STR1## (wherein either R1 is hydrogen and R2 is selected from C1-6 alkoxy, aralkoxy, C1-6 alkyl-C1-6 alkoxy, phenyl substituted by ...	12/29/1992
4933489	Process for the manufacture of 6-chloro-1,4-diacetoxy-2,3-dimethoxynaphthalene An improved process for the manufacture of the antipsoriatic agent, 6-chloro-1,4-diacetoxy-2,3-dimethoxynaphthalene, is herein described which involves in situ Diels-Alder coupling of 2,3-dimethoxybenzo-1,4-quinone with a 3-chloro-1-alkoxy-1,3-butadiene; ...	06/12/1990
4880571	Process for the preparation of 5-nitro-1,4-naphthoquinone A process for the preparation of 5-nitro-1,4-naphthoquinones of formula ##STR1## wherein R is hydrogen, a C1 -C4 alkyl radical or a C1 -C4 alkoxy radical, by oxidation of 1-nitronaphthalene or a suitably su...	11/14/1989
4786652	Naphthalene anti-psoriatic agents Psoriasis in mammals is relieved by topically administering naphthalenes of the formula: ##STR1## wherein: R1 is lower alkoxy or optionally substituted phenoxy, R2 is the same as R1, or R2 is hydrogen, lower alk...	11/22/1988
4698184	Tellurium imaging composition including improved reductant precursor and method Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae ##STR1## where Y	10/06/1987
4689179	Method for production of fluorinated quinones A method for the production of a fluorinated quinone, which comprises causing a chlorinated aromatic compound represented by the general formula I: ##STR1## wherein A denotes O, ##STR2## (where m denotes an integer of the value of 1 to 4 an...	08/25/1987
4632782	Oxidizing an organic compound A process for oxidizing an organic compound by ceric sulfate dissolved in an aqueous sulfuric acid solution, wherein the organic compound is oxidized (1) by means of a ceric sulfate-aqueous sulfuric acid solution or a cerous sulfate-containing ceric sulfa...	12/30/1986
4628062	1,4-naphthoquinone derivatives having anti-inflammatory action New compounds of the formula ##STR1## in which R1 is an allylamino, acetylamino or propionylamino radical, R2 is hydrogen or a 2-methoxyethoxy or ethoxy radical, R3 is hydrogen or a sulphamoyl radical, and R4 is hydr...	12/09/1986
4592867	Synthesis method for reductant precursor A synthesis method is provided for the synthesis of quinone compounds of the formula ##STR1## where n is 0-3, Y1 is alkoxy, Y2 is alkoxy, chloro, bromo or hydrogen and R' and R" each and independently are hydrogen, alkyl or ...	06/03/1986
4593120	Naphthalene anti-psoriatic agents Psoriasis in mammals is relieved by topically administering naphthalenes of the formula: ##STR1## wherein: R1 and R2 are the same and are lower alkoxy, lower alkylthio, optionally substituted phenoxy or optionally substituted ...	06/03/1986
4576756	Production of hydrogen peroxide Methods, materials and apparatus for production of hydrogen peroxide are disclosed. In one preferred embodiment, high surface area circulating elements derivatized with a quinone catalyst are reduced in an electrolytic cell where the cathode may also be d...	03/18/1986
4533443	Production of hydrogen peroxide Methods, materials and apparatus for production of hydrogen peroxide are disclosed. In one preferred embodiment, high surface area circulating elements derivatized with a quinone catalyst are reduced in an electrolytic cell where the cathode may also be d...	08/06/1985
4532078	Reductant precursor for tellurium imaging compositions Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae ##STR1## where Y	07/30/1985
4507241	Method for the hydrocarbylation of naphthoquinone derivatives A method for the hydrocarbylation of naphthoquinones comprising cross-coupling addition of the hydrocarbyl moiety of selected organometallic reagents to leaving group-substituted naphthoquinones....	03/26/1985
4486349	Process for preparing para-quinone or ortho-quinone derivatives, possibly alkoxylated or aryloxylated, respectively from the corresonding hydroquinone or pyrocatechic derivatives Process for preparing a para-quinone or ortho-quinone derivative, possibly alkoxylated or aryloxylated, which consists in oxidizing respectively the corresponding hydroquinone or pyrocatechic derivative, by means of the complex prepared, in situ or separa...	12/04/1984
4460678	Tellurium imaging composition including improved reductant precursor and method Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae ##STR1## where Y	07/17/1984
4442127	Naphthoquinone anti-psoriatic agents Psoriasis in mammals is relieved by topically administering naphthoquinones of the formula: ##STR1## wherein: R1 and R2 are lower alkoxy; and R3 is halo or cyano....	04/10/1984
4435336	Process for the preparation of aromatic aminosulphonic acids Aminoarylsulphonic acids which have a relatively high purity and a relatively low content of aminoaryldisulphonic acids can be obtained, if they are prepared, from the corresponding arylammonium hydrogen sulphates, by an improved version of the so-called ...	03/06/1984
4419368	Naphthoquinone anti-psoriatic agents Psoriasis in mammals is relieved by topically administering substituted naphthoquinone of the formula: ##STR1## wherein: R3 is halo, linear or branched alkoxy of one to eighteen carbon atoms or --S(O)n R wherein: n is 0, 1 or 2;...	12/06/1983
4360469	Preparation of quinones by salcomine-catalyzed oxidation of phenols It has been found that unexpectedly high yields of a high purity product can be obtained when substituted p-quinones are prepared by oxidation, using a molecular oxygen-containing gas, of the corresponding phenols in an inert solvent having a dipole momen...	11/23/1982
4229478	Naphthaquinone anti-psoriatic agents Psoriasis in mammals is relieved by topically administering substituted naphthaquinones of the formula: ##STR1## where R1 and R2 are the same or different and are hydrogen, hydroxy, alkoxy or acylamino and R3 is hydro...	10/21/1980
4148918	Substituted 2-higher alkyl-3-hydroxy-1,4-naphthoquinone carboxylic acid esters and their use as miticides This invention relates to novel compounds which are represented by the following formula: ##STR1## wherein R1 is alkyl of 8-14 carbon atoms either branched, cyclic or straight chain; and R2 is alkyl of 1-17 carbon atoms either b...	04/10/1979
4115584	Substituted 2-higher alkyl-3-hydroxy-1,4-naphthoquinone carboxylic acid esters and their use as miticides This invention relates to novel compounds which are represented by the following formula: ##STR1## wherein R1 is alkyl of 8-14 carbon atoms either branched, cyclic or straight chain; and R2 is alkyl of 1-17 carbon atoms either b...	09/19/1978
4070481	Substituted 2-higher alkyl-3-hydroxy-1,4-naphthoquinone carboxylic acid esters and their use as miticides This invention relates to novel compounds which are represented by the following formula: ##STR1## wherein R1 is alkyl of 8-14 carbon atoms either branched, cyclic or straight chain; and R2 is alkyl of 1-17 carbon atoms either b...	01/24/1978
4038293	Silicone-compatible tris(trimethylsilyloxy)silylalkylamino-substituted quinoncid dyestuffs Quinonoid dyestuffs containing the tris(trimethylsilyloxy)silylalkylamino group, --NH--(CH2)x --Si[OSi(CH3)3 ]3 are produced of the formula ##STR1## WHEREIN EACH R2 and R3 i...	07/26/1977
4014907	2-Hydroxy-3-nitro-1,4-naphthoquinones Substituted naphthoquinones of the formula (I) and pharmaceutically acceptable salts thereof wherein R1, R2, R3 and R4 represent alkyl, aryl, alkoxy, hydroxy, hydrogen or halogen or any two of the groups R1...	03/29/1977
3941815	Process for the preparation of 5-nitro-1,4-naphthoquinone A process for the preparation of 5-nitro-1,4-naphthoquinone comprising nitrating 1,4-naphthoquinone under such a condition that the dehydrating value of sulfuric acid in the reaction mixture is at least 4 to selectively introduce a nitro group into the 5-...	03/02/1976
3935246	Naphthoquinones Compounds represented by the formula ##SPC1## Wherein R is a cyclopentyl or cycloheptyl and R1 is a hydrogen, halogen or lower alkoxy, Processes for their production and novel intermediates as well as therapeutic preparations containing the compound...	01/27/1976
3931255	Process for the production of 5-nitro-1,4-naphthoquinone 5-Nitro-1,4-naphthoquinone is prepared by reducing 8-nitro-1,4-naphthoquinone-1-oxime and/or 5-nitro-1,4-naphthoquinone-1-oxime in an aqueous and/or organic reaction medium in the presence of iron (II) ions and a hydrogen halide at a temperature in t...	01/06/1976

PatentStorm

Bizarre Patents

PatentStorm News

Class 552/297 - Nitrogen or halogen bonded directly to the polycyclo ring system