baber/WOPTO huggingface dataset:
Patent NO-179032-B (NO)
Inventor: SCHMIDT HELGA
IPC: A23C19/16
Filed: 1990-02-19
Abstract: In the process, in addition to the conventional acidifying organisms, lactobacilli, optionally in combination with other microorganisms, are added to the vat milk, and cheese ripening is carried out in special films. In this manner a cheese is obtained corresponding in flavour, consistency and appearance to Tilsit cheese traditionally prepared by surface treatment, but which has a less strong odour than traditional Tilsit.
Patent NO-179724-B (NO)
Title: Anordning for utmatning av kondensat
Inventor: YUMOTO HIDEAKI
IPC: F16T1/24
Filed: 1993-02-12
Abstract: For å muliggjøre at bare kondensat temmes/mates ut under trykk uten at damp lekker ut, uavhengig av de respektive trykk på primær- og sekundærsiden, er en kondensatutmatningsanordning, som omfatter et kondensatmottagningskammer (3) forsynt med en kondensatinn-løps- og en kondensatutlcpsåpning (4, 5) så vel som et innløp (8) og et utløp (9) for høytrykksdrivfluid, forsynt med en flottør (21) som er anordnet i kammeret og er innrettet til å stige og synke med vannivået. Anordningen omfatter videre en innløpsventil (10) som er forbundet med flottøren og benyttes for åpning og lukning av innløpet (8), og en utløpsventil (11) som er forbundet med flottøren og benyttes for åpning og lukning av utløpet (9), samt tilbakeslagsventiler (6,. 7), hvorav den ene (6) er anordnet ved kondensatinn-løpsåpningen og den andre (7) ved kondensatutløpsåp-ningen. Anordningen erat den omfatter en ventilanordning (20) som er forbundet med flottøren (21) for å åpne og lukke utløpsåpningen (5) uavhengig av tilbakeslagsventilene, idet ventilanordningen er innrettet til å lukke utløpsåpningen (5) når vannivået er lavt og å åpne utløpsåpningen (5) når vannivået stiger, idet kondensat strømmer fra innløpsåpningen (4) inn i kammeret (3) etter at flottøren (21) har lukket innløpet (8) og åpnet utløpet (9), inntil vannivået når et forhåndsbestemt nivå, og utløpet (9) lukkes og innløpet (8) åpnes, hvorved kondensat mates ut fra den åpnede utløpsåpning (5) når det forhåndsbestemte vannivå er nådd.
Patent NO-179582-B (NO)
Inventor: IKEDA TAKAFUMI
IPC: A61K31/16
Filed: 1993-05-26
Abstract: Certain novel hydroxamic acid derivatives having the structureinhibit the enzyme lipoxygenase. These compounds, and the pharmaceutically acceptable salts thereof, are useful in the treatment or alleviation of inflammatory diseases, allergic conditions and cardiovascular diseases in mammals and as the active ingredient in pharmaceutical compositions for treating such conditions.
Patent SE-305488-B (SE)
Inventor: BOKSJOE C
IPC: H02M7/06
Filed: 1964-04-30
Abstract: 1,096,386. Converting. ALLM€NNA SVENSKA ELEKTRISKA A.B. April 29, 1965 [April 30, 1964], No. 18017/65. Heading H2F. A bridge - connected converter has in each arm one or more main valves 2 and an auxiliary valve 1 arranged as in the Figure. The transformer is connected so that when the current is increasing a voltage is developed which opposes the voltage across the auxiliary valve, and when the current is decreasing a voltage is developed which increases the voltage across the auxiliary valve. Consequently towards the end of each conducting period the auxiliary valve takes over the current from the main valve which then has longer to deionize. Preferably the auxiliary valve does not carry any current in the midpart of each conducting period. The main valve is fired 30Á sec. after the auxiliary valve. If there are several main valves in parallel, then the transformer 6, 7 is interconnected with the current sharing inductors of the main valves (Figs. 3 and 4, not shown).
Patent SE-329546-B (SE)
Inventor: VANHEERENTALS J
IPC: G03C5/08
Filed: 1968-04-25
Abstract: 1,219,789. Photographic exposure control. AGFA-GEVAERT A.G. April 26, 1968 [April 26, 1967(2)], No.19951/68. Headings G2A and G2C. In a method of photo-printing in which a predetermined density range is desired in the copies, although the originals have varying density ranges, a calibration curve 8 is first prepared for the particular copying material by making a series of test exposures in pairs upon the copying material each pair of exposures comprising one yellow light exposure and one blue light exposure in different colour proportions using a neutral density wedge as original to be printed, plotting for each exposure a density curve of print densities against the corresponding original densities of the neutral density wedge, determining from each curve the density range of an original corresponding to the desired predetermined density range of copies, and then interpolating the calibration curve by plotting the so determined original density ranges against the printing light colour proportions of the corresponding test exposures. This curve is then used to read off the proportions of the two colours of the printing light corresponding to the maximum and minimum density values and/or the density range of the original to be printed. In apparatus 1 for controlling the exposure of a photographic printer, an electronic timer is provided, the timer having one setting member 5 for setting the total exposure time and a second setting member 4 for setting the ratio of partial exposures in light of different colours; the member 5 is coupled to a scale 6 of density values movable with reference to a fixed index and the member 4 is coupled to a movable scale bearing the curve 8 and co-operating with the scale 6, the arrangement being such that the maximum density value of the original to be printed as indicated on the scale 6 is set against the fixed index, and the member 4 is adjusted so that the curve 8 cuts the scale 6 at the value corresponding to the minimum density of the original. A plurality of inter-changeable density scales are provided for use with copying materials having different Schwarzschild exponents.
Patent RS-50454-B (RS)
Inventor: SURTEES JOHN
IPC: C07D207/26
Filed: 2001-02-21
Abstract: Jedinjenje sa opštom formulom (A) i njegove farmaceutski prihvatljive soli,naznačen time što je:X -CONR5R6 ili -COOR7 ili -CO-R8 ili CN;R1 vodonik ili alkil. aril, heterocikloalkil, heteroaril, halogen, hidroksi, amino, nitro, cijano;R2 i R4 su isti, ili različiti, te je svaki nezavisno vodonik ili halogeni atom,hidroksi, amino, nitro, cijano, acil, aciloksi, -SO2-alkil, -SO2-aril, -SO-alkil, -SO-aril, alkilamino, karboksi, estar, etar, amido, sulfonska kiselina, sulfonamid, alkoksikarbonil, alkiltio, ariltio, alkil, alkoksi, oksiestar, oksiamido, aril, arilamino, ariloksi, heterocikloalkil, heteroaril, vinil grupa; R3 je vodonik, halogen, hidroksi, amino, nitro, cijano, acil, aciloksi, -SO2-alkil, -SO2-aril, -SO-alkil, -SOaril, alkilamino, karboksi, estar, etar, amido, sulfonska kiselina, sulfonamid, alkoksikarbonil, alkiltio, ariltio, alkil, alkoksi, oksiestar, oksiamido. aril, arilamino, ariloksi, heterocikloalkil, heteroaril, (C2-C5)alkenil, (C2-C5)alkinil, azido, fenilsulfoniloksi grupa, gde svaka (C2-C5)alkenil, (C2-C5)alkinil grupa može opciono da bude supstutiosana jednim, ili većim brojem halogen, cijano, tiocijano, azido, alkiltio, ciklopropil, acil, i/ili fenil grupa;R5, R6, R7 su iste, ili različite, a svaka je nezavisno vodonik, hidroksi, alkil, aril, heterocikloalkil, heteroaril. alkoksi. ariloksi grupa; aR8 je vodonik, hidroksi, tiol. halogen, alkil, aril, heterocikloalkil, heteroaril, alkiltio, ariltio grupa;svaka alkil grupa sadrži 1-20 ugljenikovih atoma i ima ravnolančane, račvaste ili ciklične ostatke ili njihove kombinacije i može, opciono, da bude supstutisana sa 1 do 5 supstituenata, nezavisno izabranih iz grupe koja se sastoji od halogena. hidroksi, tiol. amino, nitro, cijano, acil, aciloksi, -SO2-alkil, -SO2-aril, -SO-alkil. -SO-aril, alkilamino, karboksi, estar, etar, amido, sulfonska kiselina, sulfonamid, alkoksikarbonil, alkiltio, ariltio, oksiestar, oksiamido, heterocikloalkil. heteroaril, vinil, (Cl-C5)alkoksi, (C6-C10)ariloksi, (C6-C10)aril grupe;svaki aril ostatak može opciono da bude supstituisan sa od 1 do 5 supstituenata. nezavisno izabranih iz grupe koja se sastoji od halogena, hidroksi, tiol, amino, nitro. cijano, acil. aciloksi, -SO2-alkil, -SO2-aril, -SO-alkil, -SO-aril, alkilamino. karboksi, estar, etar, amido, sulfonska kiselina, sulfonamid, alkoksikarbonil, alkiltio, oksiestar, oksiamido, aril, (Cl-C6)alkoksi, (C6-C10)ariloksi, (Cl-C6)alkil grupa;uz uslov da dato jedinjenje nije metil 2-(4R,S-izopropil-2-okso-pirolidin-l-il) akrilat, metil 2-(3R,S-hlor-4R,S-izopropil-2-oksopirolidin-l-il)akrilat ili metil 2-(2-okso-pirolidin-l-il)-akilat.Prijava sadrži još 12 patentnih zahteva.
Patent ZA-827389-B (ZA)
Title: Substituted m-phenylenediamines
Inventor: KWOK KUN SUN
IPC: C07C67/00
Filed: 1982-10-08
Abstract: Novel meta phenylenediamines are provided having one or two particular benzyl radicals as substituents along with other optional substituents on the aromatic diamine ring and optionally substituents on the benzyl aromatic ring. The diamines are sterically hindered and thereby have lower amine reactivity as compared with the unsubstituted diamines. The diamines are useful as curing agents for epoxy resins and find particular utility as extenders in the formation of novel polyurethane-polyurea polymers.
Patent ZA-841975-B (ZA)
Title: Phosphonic acid esters
Inventor: JUNICHI SAITO
IPC: C07F9/40
Filed: 1984-03-16
Abstract: This invention relates to novel phosphonic acid esters represented by the following general formula (I)    <IMAGE>  (I)  wherein R1 represents a lower alkyl group or an aryl group, R2 represents a lower alkyl group or a lower alkoxy-lower alkyl group, R3 represents a fluoro-substituted lower alkyl group, X represents an oxygen or sulfur atom, Y represents an oxygen or sulfur atom or a group of the formula   <IMAGE>   in which R4 represents a hydrogen atom or a lower alkyl group, Z represents a hydrogen atom, a halogen atom or a lower alkyl group, and n represents 0 or 2, which can be used as insecticidal, miticidal and nematocidal agents.
Patent ZA-891162-B (ZA)
Title: Cephalosporin derivatives and processes for their preparation
Inventor: ADAM FRIEDHELM
IPC: C07D501/34
Filed: 1989-02-15
Abstract: Cephemcarboxylic acid esters of the general formula   <IMAGE>  +TR   <IMAGE>   pharmaceutical preparations which are active against bacterial infections, which contain such cephem derivatives, a process for the preparation of the cephem derivatives and the pharmaceutical preparations, and also the use of the cephem derivatives for combating bacterial infections.
Patent ZA-896760-B (ZA)
Title: Cycloalkyl-substituted glutaramide antihypertensive agents
Inventor: DANILEWIZ JOHN CHRISTOPHER
IPC: C07C271/24
Filed: 1989-09-04
Abstract: Compounds of the formula: <CHEM> Wherein A completes a 5 or 6 membered carbocyclic ring which may be saturated or monounsaturated; R<1> is H or (C1-C4)alkyl; R and R<4> are H, (C1-C6)alkyl, C3-C7 cycloalkyl, benzyl, or an alternative biolabile ester-forming group; Y is either a direct bond or an alkylene group of from 1 to 6 carbon atoms; R<2> is H, aryl, heterocyclyl, R<6>CONR<5>-, R<7>NR<5>CO-, R<7>NR<5>SO2- or R<8>SO2NR<5>-, with the proviso that Y is not a direct bond when R<2> is H, aryl or heterocyclyl; wherein R<5> is H, (C1-C6)alkyl or aryl(C1-C6)alkyl; R<6> is (C1-C6)alkyl, aryl, aryl(C1-C6)alkyl, heterocyclyl, heterocyclyl(C1-C6)alkyl or a group of the formula R<9>R<1><0>R<1><1>C- wherein R<9> is H, OH, (C1-C6)alkoxy, (C1-C6)alkyl, hydroxy(C1-C6)alkyl, aryl(C1-C6)alkyl, (C2-C6)alkenyl, heterocyclyl, heterocyclyl(C1-C6)alkyl, R<1><2>CONH-, R<1><2>SO2NH- or (R<1><3>)2N-; R<1><0> and R<1><1> are H or (C1-C6)alkyl; or R<1><0> is H and R<1><1> is amino(C1-C6)alkyl, imidazolylmethyl, aryl, aryl(C1-C6)alkyl, aryl(C1-C6)alkoxy(C1-C6)alkoxy, hydroxy(C1-C6)alkyl or methylthio(C1-C6)alkyl; or the two groups R<1><0> and R<1><1> form a 3 to 6 membered carbocyclic ring or a pyrrolidine or piperidine ring which may optionally be substituted by amino, (C2-C4)alkanoyl or aroyl; R<1><2> is (C1-C6)alkyl, (C3-C7)cycloalkyl, aryl, aryl(C1-C6)alkyl, heterocyclyl or heterocyclyl(C1-C6)alkyl; each R<1><3> is H, (C1-C6)alkyl, aryl(C1-C6)alkyl or the two groups R<1><3> form a pyrrolidinyl, piperidino, morpholino, piperazinyl or N-(C1-C4)alkyl-piperazinyl group; R<7> is (C1-C6)alkyl, aryl, aryl(C1-C6)alkyl, heterocyclyl, heterocyclyl(C1-C6)alkyl or a group of the formula R<1><0>R<1><1>R<1><4>C- wherein R<1><0> and R<1><1> are as previously defined and R<1><4> is (R<1><3>)2NCO-, R<1><2>OCH2- or R<1><5>OCO, wherein R<1><2> and R<1><3> are as previously defined and R<1><5> is (C1-C6)alkyl, (C3-C7)cycloalkyl or aryl(C1-C6)alkyl; and R<8> is (C1-C6)alkyl, aryl, aryl(C1-C6)alkyl, heterocyclyl or heterocyclyl(C1-C6)alkyl;  R<3> is a group of the formula: <CHEM> wherein R<1><6> is H, halo, 4-OH, 4-(C1-C6 alkoxy), 4-(C3-C7 cycloalkoxy) 4-(C2-C6 alkenyloxy), 4-[(C1-C6 alkoxy)carbonyloxy], 4-[(C3-C7 cycloalkoxy)carbonyloxy], or 3-(C1-C4 alkyl)SO2NH-; and R<2><0> is H, C1-C4 alkyl, C1-C4 alkoxy, C2-C6 alkanoyl or halo; or R<3> is a group of the formula: <CHEM> wherein said groups may optionally be substituted in the fused benzene ring by C1-C4 alkyl, C1-C4 alkoxy, OH, halo or CF3; are antihypertensive agents of utility in the treatment of hypertension, heart failure and renal insufficiency.
Patent ZA-897598-B (ZA)
Title: Antiviral compounds
Inventor: KRENITSKY THOMAS ANTHONY
IPC: A61K31/7076
Filed: 1989-10-05
Abstract: The present invention relates to certain substituted purine arabinosides and their pharmaceutically acceptable derivatives especially esters and their use in the treatment and prophylaxis of varicella zoster virus and cytomegalovirus infections. The invention also includes pharmaceutical formulations and processes for the preparation of such compounds.
Patent ZA-918224-B (ZA)
Title: A process for the preparation of a flavoured dried meat
Inventor: BOESCH HANS
IPC: A23L13/70
Filed: 1991-10-14
Abstract: In order to prepare a flavoured meat, a reducing sugar and a substance containing sulphur are mixed, the mixture is partially reacted by a heat treatment, the mixture is added to the cooked meat and the resulting product is dried.
Patent ZA-932597-B (ZA)
Title: Extended cement composition
Inventor: BORGHOLM HANS ERIK
IPC: C04B28/04
Filed: 1993-04-13
Abstract: PCT No. PCT/DK93/00132 Sec. 371 Date Jan. 4, 1995 Sec. 102(e) Date Jan. 4, 1995 PCT Filed Apr. 13, 1993 PCT Pub. No. WO93/21122 PCT Pub. Date Oct. 28, 1993A cement composition consists essentially of (a) from 50% to 97% by weight (calculated on the total composition) of a Portland cement clinker, the sulfur content of which is from 0.5% to 10% by weight expressed as SO3 and the fluorine content of which is from 0.13% to 1.00% by weight expressed as F, and (b) from 3% to 50% by weight (calculated on the total composition) of an extender containing a carbonate selected from calcium carbonate, magnesium carbonate, calcium magnesium carbonate and mixtures thereof as its main constituent and having a median particle size (d50) of below 14  mu m. Preferably, the total content of C3S and C2S in the Portland cement clinker is at least 65%. A preferred carbonate is electrostatic precipitator dust extracted from cement kiln exhaust gases. The cement composition may be mixed with further components such as other extenders, retarding agents and aggregate.
Patent ZA-942123-B (ZA)
Title: Abrasion-resistant aesthetic surface layer laminate
Inventor: O'DELL ROBIN D
IPC: B32B21/08
Filed: 1994-03-25
Abstract: A highly glossy thick aesthetic laminate surface layer is achieved by using pre-cured particulates of the impregnating resin preferably along with an initial binder material and abrasion resistant mineral particles. The protective overcoating may be applied in a thick layer to give gouge resistance and a deep look in the glossy laminate. The overcoated decor sheet is pressed against a mirror plate in the laminate manufacturing process, and gives a gloss meter reading well over 100. Because the impregnating resin and the pre-cured particulates have the same index of refraction, the transparency of the coating and the resultant clarity of the underlying decor sheet are excellent.
Patent ZA-953539-B (ZA)
Title: Blister pack for an optical lens
Inventor: BORGHORST SHARLA
IPC: B65D1/30
Filed: 1995-05-03
Abstract: The blister pack has a base section (B) with a tear shaped recess to hold the lens (L) with the edge of the base section raised (16,18) to form a self supporting structure. The oval recess is covered by a foil (D) secured by a seal (2) around the recess. The front of the base section is wider and has a cut-out (15) through which the release tag (4) of the foil can be lifted with finger pressure. The raised side sections also form finger grips to manipulate the pack. For packaging two lenses the blister pack is packed back to back with a similar pack to form a compact double. The elongated section of the tear shape recess forms a ramp up which the lens is dragged by finger pressure. <IMAGE>
Patent ZA-957347-B (ZA)
Title: Carbamoylcarboxamides
Inventor: WETTERICH FRANK
IPC: C07C271/22
Filed: 1995-09-01
Abstract: PCT No. PCT/EP95/03303 Sec. 371 Date Mar. 3, 1997 Sec. 102(e) Date Mar. 3, 1997 PCT Filed Aug. 19, 1995 PCT Pub. No. WO96/07638 PCT Pub. Date Mar. 14, 1996Carbamoylcarboxamides of the general formula I    <IMAGE>  (I)  and their salts (R1 is unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl or an unsubstituted or substituted nonaromatic carbo- or heterocycle; R2 is H or unhalogenated or halogenated alkyl or cycloalkyl; R3 is unsubstituted or substituted alkyl, cycloalkyl or phenylalkyl; R4 is H or one of the radicals R3 or R3 and R4, together with the C atom to which they are bonded, are an unsubstituted or substituted carbo- or heterocycle; R5 independently of these is one of the radicals R2; X independently of one another is hydrogen, unsubstituted or substituted alkyl and/or alkenyl; Y independently of one another and of these is one of the radicals X; p,q independently of one another are 0, 1 or 2; R6 is halogen, cyano, nitro or unsubstituted or substituted alkyl, alkoxy, alkylthio or an unsubstituted or substituted phenyl group bonded via oxygen or sulfur; r is 0, 1, 2 or 3), and compositions containing them, processes for preparation, and the use of the compounds I and the compositions are described.
Patent ZA-986244-B (ZA)
Title: Switching control arrangement.
Inventor: AINSWORTH JOHN DESMOND
IPC: H02J3/18
Filed: 1998-07-14
Abstract: A switching control arrangement for a multilevel convertor minimises the harmonic content of the convertor voltage or current by an open-loop and/or a closed-loop control of the timing of the switching of the GTOs associated with the energy-storage components (e.g. capacitors) in the convertor. In a first open-loop arrangement the convertor current is quantized over its working range and different threshold values are provided in dependence on the quantization values of the current. In a second open-loop arrangement a continuous, non-quantized control is provided based on at least a quadratic approximation to the desired current-dependent behaviour of the GTO switching angles. In a third, closed-loop arrangement, different GTO-switching threshold levels are provided as controlled by a Fourier integration process involving the nulling of those harmonics desired to be nulled. The control arrangement is applicable to chain or stacked-capacitor multilevel convertors and can be employed in SVC applications or applications in which the convertor draws real power as well as reactive power. <IMAGE>
Patent GB-2374190-B (GB)
Title: A gambling apparatus
Inventor: BURSILL DONALD WILLIAM
IPC: G07F17/32
Filed: 2001-03-13
Granted: 2004-09-29
Abstract: A gambling apparatus comprising: means for generating a random outcome; direct bet placing means for receiving a bet on the outcome; communication means for transmitting the outcome or data dictating the outcome; and at least one direct display means for generating a display of the outcome.
Patent GB-2382967-B (GB)
Title: Container for uniformly heating its contents by means of microwaves and heating system equipped with at least one such container
Inventor: GERMAIN ALAIN
IPC: B65D81/34
Filed: 2001-08-30
Granted: 2005-07-20
Abstract: Container designed to contain a product having to be heated by applying microwaves, the container having a side wall (10) and an end wall (12) formed by a base or a lid and means (10A) for limiting the penetration of the microwaves through the side wall (10), compared with the penetration of the microwaves through a central region of the end wall (12). Advantageously, the container according to the invention further comprises means (12A) for concentrating the microwaves in a central region of the end wall (12), the said means being formed by an excess thickness of a dielectric material, the dielectric constant of which is at least equal to 1.5, preferably greater than 2.
Patent GB-2390910-B (GB)
Title: Flexure arrangements for optical beam steering
Inventor: DAMES ANDREW NICHOLAS
IPC: G02B6/42
Filed: 2003-06-04
Granted: 2004-12-15
Abstract: A flexure arrangement, suitable for use with or as part of, e.g., an optical beam steering arrangements, and intended for supporting and transmitting movement to any appropriate element, the arrangement including a first flexure to which movement is applied, a second flexure which attaches the arrangement to any appropriate supporting structure, structure linking the first flexure to the second flexure and structure for receiving any appropriate element, the first and second flexure being appropriately spaced so that any movement applied to the first flexure is amplified by the flexure arrangement.
Patent GB-2059959-B (GB)
Title: Non-ionic surface-active agents
IPC: C09K23/42
Filed: 1980-09-17
Granted: 1983-11-30
Abstract: The invention relates to non-ionic surface-active agents which correspond to the formula RO[C2H3(OZ)]R1 (I)  in which R denotes a linear or branched, saturated or unsaturated aliphatic radical containing 4 to 20 carbon atoms, R1 denotes (1) a, preferably linear, alkyl radical, (2) a linear or branched alkoxymethyl radical or (3) an alkenyloxymethyl radical, the alkyl or alkenyl parts of these radicals containing from 4 to 20 carbon atoms,and Z denotes a polyether linkage corresponding to the formula   <IMAGE>   in which &upbar& n denotes an average statistical value of 2 to 20 and A denotes (a) the group OH, (b) the group   <IMAGE>   in which u denotes 0 or 1, or (c) the group    <IMAGE>   in which u dentoes 0 or 1, the radicals R and R1 containing a total of 12 to 38 carbon atoms, as well as to the derivatives of the above compounds which result from the reaction of ethylene oxide or glycidol with the OH groups. These compounds can be used, in particular, as base surface-active agents or as additives in cosmetic or pharmaceutical compositions.
Patent GB-2065480-B (GB)
Title: Ballasted tubes for enteral feeding
IPC: A61J15/00
Filed: 1980-12-12
Granted: 1983-08-03
Abstract: A ballasted feeding tube comprises flexible tubing (30), for example of silicone, the distal extremity (36) of which is ballasted by means of a load of mercury (24) introduced in a closed cartridge (22) which is placed in the interior of the distal extremity (36) of the tubing of the feeding tube. <IMAGE>
Patent GB-2116555-B (GB)
Title: Preparation of ortho-methyl anilines from ortho-amino benzyl sulfoxides
Inventor: CHUPP JOHN PAUL
IPC: B01J23/44
Filed: 1983-03-16
Granted: 1986-01-15
Abstract: This invention relates, in one of its aspects, to a process for the preparation of ortho-methyl anilines from ortho-amino benzyl sulfoxides. An ortho-amino benzyl sulfoxide is converted to an ortho-amino benzyl halide by reaction with a nonoxidizing acid halide and is converted to a stable quaternary salt by reaction with a tertiary amine preferably in the presence of an alcohol. The quaternary salt may be cleaved by hydrogenation to form ortho-methyl anilines. Other aspects of the invention relate to novel intermediate quaternary salts and to a process for forming those quaternary salts.