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Patent No. 5719655

System for magnetically attaching templeless eyewear to a person

A system of eyewear that eliminates the need for hinges on the frames of the eyewear.

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Class 568/417 - Carbon to carbon unsaturation containing


Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which contain an unsaturated carbon to carbon
No. of patents: 67
Last issue date: 07/28/2009


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NumberTitleIssue Date
7566808Management of ophthalmologic disorders, including macular degeneration
A drug may be used in the preparation of a medicament for the treatment or prevention of an ophthalmologic disorder, wherein the drug inihibits, antagonizes, or short-circuits the visual cycle at a step of the visual cycle that occurs outside a disc of a rod photore...
07/28/2009
7294448Composition sensitive to visible light
The present invention provides a visible light-sensitive composition which is highly sensitive to a visible light and is useful as an electronic circuit forming material, a lithographic printing material, etc., said visible light-sensitive composition comprising (a)...
11/13/2007
7214831Histone deacetylase inhibitors based on alpha-chalcogenmethylcarbonyl compounds
Histone deacetylase is a metallo-enzyme with zinc at the active site. Compounds having a zinc-binding moiety, for example, an alpha-chalcogenmethylcarbonyl group, such as an alpha-ketothio group, can inhibit histone deacetylase. Histone deacetylase inhibition can re...
05/08/2007
6753449Cleavable linker for solid phase synthesis
Cleavable alkene-containing linkers and supports useful for the solid phase synthesis of chemical compounds, and combinatorial libraries of compounds, are disclosed. Also disclosed are methods of making and using the linkers and supports. ...
06/22/2004
6310259Method for producing 6,10 and 6,9-dimethyl-5,10-undecadienyl-2-ones
The present application refers to a process for preparing 6,10- and 6,9-dimethyl-5,10-undecadienyl-2-ones by telomerizing isoprene with alkyl acetoacetates in the presence of a catalyst system containing a transition metal compound catalyst and a phosphor...
10/30/2001
6252106Method for stabilizing a sex pheromone compound
An efficient method is proposed for the stabilization of a sex pheromone compound of insect pest, which is a long-chain aliphatic unsaturated ester, alcohol, ketone or hydrocarbon compound having at least ten carbon atoms and at least one double bond in a...
06/26/2001
5856537Inhibitors of oleamide hydrolase
Inhibitors of oleamide hydrolase, responsible for the hydrolysis of an endogenous sleep-inducing lipid (1, cis-9-octadecenamide) were designed and synthesized. The most potent inhibitors possess an electrophilic carbonyl group capable of reversibly formin...
01/05/1999
5654487Catalyst composition and use in preparing polyketones
Catalyst compositions for preparing polyketones comprising (a) a Group VIII metal compound, containing at least one ligand capable of coordinating to the Group VIII metal, and (b) a boron hydrocarbyl compound are disclosed, in particular catalyst composit...
08/05/1997
5625069Process for preparing 2-cyano-3,5-dimethyl-4-methoxypyridine
A process of preparing 2-cyano-3,5-dimethyl-4-methoxypyridine. The process includes the steps of: acylating 2-methyl-1-penten-1-alkoxy-3-one to obtain 2-alkoxycarbonyl-3,5-dimethyl-4-pyrone; ammonolyzing 2-alkoxycarbonyl-3,5-dimethyl-4-pyrone to obtain ...
04/29/1997
5527968Process for the production of modified acrylic monomers
A hydroxy-terminated linear carbonate is produced by reacting a cyclic alkylene carbonate such as neopentyl glycol carbonate with a substance having at least one alcoholic hydroxyl group in the presence of a catalyst. Mono- or polyhydric alphatic alcohols...
06/18/1996
5300654Method for the preparation of unsaturated ketones
ଲ-hydroxyketones are prepared by reacting an aldehyde with acetone in the presence of perhydroisoindole or pyrrolidine and water. The resulting ଲ-hydroxyketone is further reacted in the presence of a solvent mixture to produce ଱-ଲ-...
04/05/1994
5221797Process for the purification of pseudo-ionone and a complex formed during said process
A process for the purification of pseudo-ionone, which comprises preparing pseudo-ionone by a reaction of citral with acetone, followed by bringing the reaction medium into contact with a metal derivative and thereafter distilling the pseudo-ionone....
06/22/1993
5073659Process for the preparation of terpenes
A terpene compound having the formula (III) is produced by reacting an allylic halide having the formula (I) with a Grignard reagent having the formula (II) in the presence of anhydrous zinc chloride and a copper compound or an organic zinc halide compoun...
12/17/1991
5017718Process for preparing polyfluoroalkyl-substituted compounds
A process for preparing a perfluoroalkyl-substituted compound is disclosed. The process comprises reacting a halopolyfluoroalkane having 1 to 20 carbon atoms with a compound selected from the group consisting of (1) a substituted or unsubstituted ethylene...
05/21/1991
4806693Process for the preparation of unsaturated ketones
A process for preparing compounds of the general formula R represents an H atom or an optionally substituted hydrocarbyl group, by reacting a compound R--C.dbd.CH with CO in the presence of a Pd(II) compound, an organic phosphine and a protonic acid having a p...
02/21/1989
4727195Process for the preparation of unsaturated ketones
A process for preparing compounds of the general formula: R represents an H atom or an optionally substituted hydrocarbyl group, by reacting a compound R--C.tbd.CH with CO in the presence of a Pd(II) compound, an organic phosphine and a protonic acid having a ...
02/23/1988
4625066Substituted acetylene-ketones
Novel substituted acetylene-ketones of the formula in which R1 represents optionally substituted cycloalkyl with 4 to 7 carbon atoms or the groupings ##STR1## or represents optionally substituted aryl, if R2 represents optional...
11/25/1986
4613706Isomer-directed process for producing asymmetric ketones using catalytic Claisen rearrangement of allylic ethers, intermediates, and uses of products and intermediates of process in perfumery
Described is an isomer-directed process for producing asymmetric ketones defined according to the generic structure: ##STR1## wherein one of Z1 or Z2 is the moiety: ##STR2## and the other of Z1 or Z2 i...
09/23/1986
4564477Polyprenyl compounds and method of producing the same
There are provided polyprenyl compounds of the formula ##STR1## wherein ##STR2## represent a trans-isoprene unit and a cis-isoprene unit, respectively, n is an integer of 11-19, Z1 and Z2 combinedly represent .dbd.O, ....
01/14/1986
4560791Synthesis of triconjugated dienones and intermediates used in said process
Described is a process for preparing triconjugated dienones defined according to the structure: ##STR1## wherein R1 represents C1 -C8 alkyl, phenyl or phenyl methyl and wherein R2 represents hydrogen or C
12/24/1985
4476147Flavoring of alliaceous-flavored foodstuffs
A process for augmenting or enhancing the aroma or taste of alliaceous flavors, particularly garlic flavors, by augmenting or enhancing the garlic and green aroma and taste nuances of alliaceous-flavored foodstuffs comprising the step of adding to a allia...
10/09/1984
4465863Branched C13 -alk-1-en-5-ones, use thereof in perfumery, process for preparing same and intermediates used in said process
Described are compounds defined according to the structure: ##STR1## wherein R3, R4, R5, R6 and R7 represent hydrogen or methyl with the provisos that: (i) the sum total of carbon atoms in R3
08/14/1984
4456558Polyprenyl ketone derivatives
This invention relates to novel polyprenyl ketone derivatives having the eral formula: ##STR1## in which n is an integer of 1-5, and R represents a hydroxymethyl, formyl or carboxyl group, and a process for the preparation of the same....
06/26/1984
4451392Synthesis of triconjugated dienones and novel intermediates used in said process
Described is a process for preparing triconjugated dienones defined according to the structure: ##STR1## wherein R1 represents C1 -C8 alkyl, phenyl or phenyl methyl and wherein R2 represents hydrogen or C
05/29/1984
4431844Preparation of polyunsaturated ketones
An improved process for the preparation of unsaturated ketones of the general formula I ##STR1## where R1 is --CH3, ##STR2## and R2 and R3 are different and each is H or --CH3, by react...
02/14/1984
4426321Odorant alkadienyl ketones, alcohols and oximes
This invention discloses a number of novel odorant alkadienyl ketones, alcohols and oximes having from 9 to 15 carbon atoms, processes for making same and odorant compositions containing same....
01/17/1984
4412083Process for producing solanone, norsolanadione and intermediates therefor
Described is a process for preparing solanone and norsolanadione using chemical intermediates defined according to the generic structure: ##STR1## wherein X is one of the moieties: ##STR2## wherein R represents hydrogen or methyl; wherein Y repr...
10/25/1983
4380674Branched ketones, organoleptic uses thereof and process for preparing same
Described are branched ketones defined according to the generic structure: ##STR1## wherein R4 ' represents C1 -C4 lower alkyl; wherein one of the dashed lines is a carbon-carbon double bond and the other of the dashe...
04/19/1983
4374276Novel branched chain ketones and the process for preparing same
Described are acylated derivatives of triisobutylene defined according to the generic structures: ##STR1## wherein, in each of the molecules one of the dashed lines represents a carbon-carbon double bond and each of the other of the dashed lines ...
02/15/1983
4346237Branched ketones, organoleptic uses thereof and process for preparing same
Described are branched ketones defined according to the generic structure: ##STR1## wherein R4 ' represents C1 -C4 lower alkyl; wherein one of the dashed lines is a carbon-carbon double bond and the other of the dashe...
08/24/1982
4321255Use of branched ketones in augmenting or enhancing the aroma or taste of foodstuffs, chewing gums, toothpastes or chewing tobacco
Described is the use in augmenting or enhancing the aroma or taste of foodstuffs, chewing gums, toothpastes or chewing tobaccos comprising the step of adding to a foodstuff, toothpaste, chewing gum or chewing tobacco an aroma or taste augmenting or enhanc...
03/23/1982
4315911Flavoring with mixture of acetyl diisobutylenes
Described for augmenting or enhancing the aroma or taste of foodstuffs, chewing gums, toothpastes and medicinal products are certain branched ketones having the generic structure: ##STR1## wherein one of the dashed lines is a carbon-carbon double bon...
02/16/1982
42949721,2-Disubstituted oxo triazolidine
Compounds of the formula (I): ##STR1## wherein n is 3 to 5; Y is --CH2 --CH2, --CH.dbd.CH-- or C.tbd.C--; L is O or S; R1 is C1-4 alkyl; R2 is hydrogen, C1-4 alkyl or phenyl; R3 is hy...
10/13/1981
4292454Coupling reaction involving a Grignard and allylic halide
Disclosed is a process for the coupling of a Grignard reagent RMgX with an allylic halide in the presence of a dipolar aprotic solvent wherein the improvement, for obtaining improved yield and selectivity, comprises adding a catalyst to said Grignard or a...
09/29/1981
423345315-Deoxy-16-hydroxy-16-allenyl prostane derivatives of the E and F series
This invention disclosed herein relates to pharmacologically active 15-deoxy-16-hydroxy prostaglandin derivatives of the E and F series wherein C16 is substituted with allenyl. These compounds are active as hypotensives, antisecretory, bronchodilati...
11/11/1980
4228313Coupling reaction involving a Grignard and allylic halide
Disclosed is a process for the coupling of a Grignard reagent RMgX with an allylic halide in the presence of a dipolar aprotic solvent wherein the improvement, for obtaining improved yield and selectivity, comprises adding a catalyst to said Grignard or a...
10/14/1980
4226810Splitting up pyran rings
A chemical method for splitting the pyran ring of compounds such as 2,6,6-trimethyl-5,6-dihydro-4H-pyran is disclosed which consists in reacting the 4H-pyran derivatives concerned with water and a halogen-containing or halogen-donating catalyst at a compa...
10/07/1980
4222963Substituted propargyl alcohols, allylic alcohols and unsaturated ketones, and methods for the production thereof
Novel substituted propargyl alcohols of the formula: ##STR1## novel allylic alcohols of the formula: ##STR2## and; δ,&3xb5;-unsaturated ketones of the formula: ##STR3## are provided. In the above formulas, R represents a group of the formu...
09/16/1980
42028221-Hydroxymethyl-1-oxo-prostane derivatives of the F1 series
Derivatives, analogs, and congeners of prostane having a 1-(hydroxymethyl)-1-oxo-prostane structure in the F1 series....
05/13/1980
41972451-Hydroxymethyl-1-oxo-prostane derivatives of the A1 series
Derivatives, analogs, and congeners of prostane having a 1-(hydroxymethyl)-1-oxo-prostane structure in the A1 series....
04/08/1980
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