Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7608710 | Cationic surfactants A surfactant comprising a polyether segment including at least one pendant alkoxyfluoroalkyl group, and a cationic substituent defined by one of the formulae: or the substituted derivatives thereof. ... | 10/27/2009 |
| 7265249 | Enantioselective alpha-fluorination of aldehydes using chiral organic catalysts Nonmetallic, chiral organic catalysts are used to catalyze enantioselective fluorination of enolizable aldehydes. Reaction systems composed of an enolizable aldehyde, an electrophilic fluorination reagent, and a nonmetallic chiral catalyst in the form of an imidazol... | 09/04/2007 |
| 7176313 | Anti acid-fast bacterial agent containing pyridonecarboxylic acids as active ingredient An anti acid-fast bacterial agent containing, as an active ingredient, a pyridonecarboxylic acid derivative represented by the following general formula (1), a salt thereof, or a hydrate thereof, which shows excellent antibacterial activity against Mycobacterium ... | 02/13/2007 |
| 7053236 | Catalytic asymmetric desymmetrization of prochiral and meso compounds The present invention relates to methods for the synthesis of chiral non-racemic products, e.g., enantiomerically-enriched hemiesters, from prochiral and meso starting materials, e.g., prochiral and meso cyclic anhydrides. The present invention also relates to catal... | 05/30/2006 |
| 6586434 | Method for the preparation of tetrahydrobenzothiepines Among its several embodiments, the present invention provides an improved process for the preparation of tetrahydrobenzothiepine-1,1-dioxide compounds; the provision of a process for preparing a diastereomeric mixture of tetrahydrobenzothiepine-1,1-dioxid... | 07/01/2003 |
| 6504066 | Process for the synthesis of (R)-1-(3,5-bis(trifluoromethyl)-phenyl)ethan-1-ol by asymmetric transfer hydrogenation The present invention is concerned with novel processes for the preparation of (R)-1-(3,5-bis(trifluoromethyl)phenyl)ethan-1-ol. This compound is useful as an intermediate in the synthesis of compounds which possess pharmacological activity.... | 01/07/2003 |
| 6153608 | Isoquinoline derivatives and drugs The invention relates to a compound of the following general formula [I] or a medicinally acceptable salt thereof, or a solvate thereof, ##STR1## wherein R1 represents alkyl, alkenyl, alkynyl, alkoxy, hydroxy, cyano, or halogen; R2 | 11/28/2000 |
| 6057321 | 1,4-diazabicyclo [2.2.2] oct-2-ylmethyl derivatives, their preparation and therapeutic application The invention concerns compounds of general formula (I) ##STR1## in which R1 represents a methyl group, X1 represents a hydrogen atom, or OR1 and X1 together form a group of formula --O(CH2)... | 05/02/2000 |
| 5892035 | Process for preparing N,N'-difluorodiazoniabicycloalkane salt, intermediate therefor A process for preparing a N,N'-difluorodiazoniabicycloalkane salt of the formula: ##STR1## by reacting a corresponding diazabicycloalkane or diazabicycloalkane Br.o slashed.nsted acid salt and fluorine in the presence of a Br.o slashed.nsted aci... | 04/06/1999 |
| 5756741 | Process for the production of triethylenediamine A process for preparing triethylenediamine by passing an amine compound over a catalyst at elevated temperature to afford a reaction product containing triethylenediamine and piperazine, the amine compound having, in the molecule, a moiety represented by ... | 05/26/1998 |
| 5741906 | Production of triethylenediamine using surface acidity deactivated zeolite catalysts A process for preparing triethylenediamine by passing an ethanolamine, ethyleneamine, piperazine or morpholine over a pentasil-type zeolite at elevated temperature characterized by employing a ZSM-5 zeolite in the hydrogen or ammonium form which has been ... | 04/21/1998 |
| 5663173 | N-[(1,4-diazabicyclo[2.2.2] oct-2-yl)methyl] benzamide derivatives, their preparations and their application in therapeutics An optically active isomer or a racemate of a compound of general formula (I) ##STR1## in which either R1 represents a methoxy or cyclopropylmethoxy group and R2 represents a hydrogen, chlorine or bromine atom, or R1 ... | 09/02/1997 |
| 5473065 | Fluorinated diazabicycloalkane derivatives The present invention relates to novel N,N'-difluorinated diazabicycloalkane derivatives which are useful as electrophilic fluorinating agents, processes for preparing such N,N'-difluorinated diazabicycloalkane derivatives and methods of using such compou... | 12/05/1995 |
| 5459267 | 1-substituted-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts and their application as fluorinating agents SUBSTITUTED-4-FLUORO-1,4-DIAZONIABICYCLO[2.2.2]OCTANE SALTS AND THEIR APPLICATION AS FLUORINATING AGENTS The present invention relates to the preparation and uses of 1-substituted-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane salts, specifically 1-hydrox... | 10/17/1995 |
| 5367071 | Process for preparing difluorinated diazoniabicycloalkane derivatives The invention is a process for preparing 1,4-diazoniabicycloalkanes of Formula I wherein the corresponding 1-hydro-4-aza-1-azoniabi-cycloalkane salt of the 1,4-diazabicycloalkane is fluorinated in the presence of an alkali metal salt under reaction condit... | 11/22/1994 |
| 5280120 | Catalytic processes for the preparation triethylenediamine A process for preparing bridged nitrogen-containing compounds which comprises contacting a carboxylated cyclic nitrogen-containing compound with a mixed metal oxide catalyst under conditions effective to produce the bridged nitrogen-containing compound.... | 01/18/1994 |
| 5274166 | Dithiocarbamic acid salt, process for production thereof, and process for production of isothiocyanate using said dithiocarbamic acid salt The present invention provides a dithiocarbamic acid salt which can be converted, at a very high yield, to an isothiocyanate suitable for use as an intermediate for production of thiazabicyclononane derivative or monothiourazole derivative; a process for ... | 12/28/1993 |
| 5212312 | Vattable and non-vattable quinoid dyes Dyes of the formula ##STR1## in which F is the radical of an indigoid dye, of a benzothioxanthene or of an aromatic dye which contains at least 4 alicyclic and/or heterocyclic, fused six-membered rings and at least two ring keto groups and is not ... | 05/18/1993 |
| 5194613 | Catalytic processes for the preparation of bridged nitrogen-containing compounds A process for preparing bridged nitrogen-containing compounds which comprises contacting a carboxylated cyclic nitrogen-containing compound with a mixed metal oxide catalyst under conditions effective to produce the bridged nitrogen-containing compound.... | 03/16/1993 |
| 5164497 | Decarboxylation processes using mixed metal oxide catalysts A decarboxylation process which comprises contacting a carboxylated compound with a metal oxide catalyst under conditions effective to decarboxylate the carboxylated compound.... | 11/17/1992 |
| 5162531 | Mixed metal oxide catalytic process for the preparation of triethylenediamines A process for preparing bridged nitrogen-containing compounds which comprises contacting a cyclic nitrogen-containing compound reactant with a mixed metal oxide catalyst under conditions effective to produce the bridged nitrogen-containing compound.... | 11/10/1992 |
| 5124378 | Stabilization of ambient cured coatings N--OR1 substituted hindered amine light stabilizers impart outstanding stabilization properties to ambient cured coatings based on a variety of resins, the stabilized coatings exhibiting improved durability, weatherability, and the like.... | 06/23/1992 |
| 5113617 | Chemical hybridizing agents The present invention relates to a method for inducing male sterility in plants which comprises treating seeds of a plant receptive to said treatment by application of an effective amount of a compound of the formula: ##STR1## wherein R and R | 05/19/1992 |
| 5086178 | Fluorinated diazabicycloalkane derivatives Fluorinated diazabicycloalkane derivative of the following Formula I: ##STR1## wherein n represents 0, 1 or 2; R represents a quaternizing organic group; each R1, R2, R3, R4 and R5 independently ... | 02/04/1992 |
| 5006577 | Stabilization of ambient cured coatings with N-hydroxy hindered amines N-hydroxy-substituted hindered amine light stabilizers impart outstanding stabilization properties to ambient cured coatings based on a variety of resins, the stabilized coatings exhibiting improved durability, weatherability, and the like.... | 04/09/1991 |
| 4990616 | Zinc stearate as a flow promoting additive for triethylenediamine A flowable triethylenediamine composition containing 200 to 1,000 ppm zinc stearate. Aqueous solutions containing such flowable triethylenediamine in amounts suitable for making polyurethane foam are clear and colorless without foam formation on the solut... | 02/05/1991 |
| 4966969 | Process for the preparation of triethylenediamines The present invention relates to a process for preparing triethylenediamines which comprises contacting an amine compound having, in the molecule, a group represented by the general formula: ##STR1## (wherein R1, R2, R3 | 10/30/1990 |
| 4918190 | Crystalline complex compounds of propargyl alcohols and tertiary diamines, and process of separation and purification of propargyl alcohols using the same Disclosed are a crystalline complex compound of a propargyl alcohol represented by Formula (I): ##STR1## wherein each of R1 and R2 represents a substituent which is different from each other and a tertiary diamine represented by... | 04/17/1990 |
| 4814446 | Fluorinated triethylenediamine as an oxygen transport agent Fluorinated triethylenediamine compounds such as perfluorotriethylenediamine and the novel compounds undecafluorotriethylenediamine and decafluorotriethylenediamine, prepared by indirect fluorination of triethylenediamine by passing triethylenediamin... | 03/21/1989 |
| 4804758 | Preparation of 1,4-diazabicyclo[2.2.2]octanes 1,4-Diazabicyclo[2.2.2]octane and C-substituted 1,4-diazabicyclo[2.2.2]octanes of the formula (I) ##STR1## where R1 and R2 are each hydrogen or alkyl or alkenyl, each of 1 to 4 carbon atoms, are prepared from a heterocyclic amin... | 02/14/1989 |
| 4803205 | Quinolones as antibacterial agents A novel series of quinolone carboxylic acids for use as antibacterial agents are described. Methods for making the compounds, methods of using the compounds and compositions containing them are also described. Certain novel intermediates are also describe... | 02/07/1989 |
| 4780468 | 8-trifluoromethyl quinolones as antibacterial agents A novel series of quinolone carboxylic acids for use as antibacterial agents are described. Methods for making the compounds, methods of using the compounds and compositions containing them are also described. Certain novel intermediates are also describe... | 10/25/1988 |
| 4772706 | Process for quinoline-3-carboxylic acid antibacterial agents An improved process for the preparation of 7-substituted amino-1-alkyl- or cyclopropyl-6,8-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acids is described where tetrafluorobenzoyl chloride is converted in three operations via 1-alkyl or 1-cycloal... | 09/20/1988 |
| 4757143 | Catalytic method for the manufacture of triethylenediamine Cyclic and acyclic hydroxyethyl ethylenepolyamines are converted to triethylenediamine when using a catalyst composed of zirconia or titania to which from about 0.5 to about 7 wt. % of phosphorous has been thermally chemically bonded in the form of phosph... | 07/12/1988 |
| 4754036 | Conjoint production of C-methyl triethylene diamine and allyl piperazine N-(hydroxypropyl) piperazine and/or N,N'-(dihydroxypropyl) piperazine can conjointly be converted to C-methyl-triethylenediamine and allyl piperazine with excellent conjoint yield and selectivity when using a catalyst composed of titania to which from abo... | 06/28/1988 |
| 4742168 | Anti-caking agent for triethylenediamine The use of certain oxyalkyl amines as anti-caking agents for triethylenediamine (TEDA) is disclosed. The anti-caking agent comprises polyoxypropylene amines or their amides, the amines having the formula: ##STR1## wherein X is hydrogen, a methyl radi... | 05/03/1988 |
| 4691015 | Hydroxylamines derived from hindered amines Hydroxylamines derived from hindered amines are effective in stabilizing polyolefin compositions containing a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the hindered amine light stabilizers, the a... | 09/01/1987 |
| 4656268 | Benzoquinophthalone quaternary ammonium salt derivatives There are described novel cationic quinophthalone compounds of the formula I ##STR1## wherein the symbols have the meanings defined in claim 1, and also processes for producing them. These novel quinophthalone compounds can be used in particular... | 04/07/1987 |
| 4628092 | Triethylenediamine containing acetylenic alcohols as flow aids The flowability of stored triethylenediamine is improved by admixing with a flow promoting amount of a C5 -C28 acetylenic alcohol. Especially suitable as a flow promoting additive for triethylenediamine is a mixture of 3,6-dimethyl-1... | 12/09/1986 |
| 4621036 | Halogenated organic solid depolarizer Certain solid organic depolarizers are disclosed for use in non-aqueous active metal cells which allow such cells to achieve both high voltage and high capacity with greater enhanced stability. The depolarizers include halogen adducts of triethylenediamin... | 11/04/1986 |
