baber/WOPTO huggingface dataset:
Patent IT-MC960087-A1 (IT)
Title: Double standardisation of arms on other lever positioned on same eccentric cord traction gear.
Inventor: SERI RANIERO
Filed: 1996-07-24
Abstract: Unlimited energy for alternators, engines and pumps. (With this LAST attempt, we will satisfy our interlocutors, that find us repetitive, superficial, and inconclusive. Therefore, the scientists were right that in 10,000 attempts in the tiresome research of the perpetual motion of Wheel 2 that we find in this simple device made with two concentric wheels, two levers planted on one of the two rims, with arms different and proportional to the double difference, due to the distance of the eccentric rope on the other rim. There is also a moveable arm to accommodate it. The inventor SERI Raniero, Cesi, 1, Macerata 62030 proposes the production of silent generators and claims as follows: 1) every self rotator on one or two wheels, however joined, with two levers which are proportional to the eccentric position, joined levers of the tie rod on different arms. N.B: For future mass migrations, more discipline and more spirituality, more authority from the part of the UN, the Vatican, and the USA are necessary, as well as social salaries for housewives/mothers, increasing the Special Rights to make money for the service sector, after agricultural gold and the industrial dollar.
Patent IT-MI910216-A1 (IT)
Inventor: BONETTI GIULIO
IPC: F16K/
Filed: 1991-01-30
Abstract: Ball valve for fluids, with sealing seatings (14,15) comprising rings (16,17), disposed between the spherical surface of the valve and the interior of the valve body, composed of rings formed of superimposed layers (17) of plates of pure graphite alternating with plates (16) of stainless steel sheet, the whole being contained in a casing (18) of metal sheet covering the outer sides of the seating, except that in contact with the spherical sealing surface. <IMAGE>
Patent IT-MI920020-A1 (IT)
Inventor: BRUNAZZI ACHILLE
IPC: A01D34/66
Filed: 1992-01-10
Abstract: Gear bar particularly for cutter bars of rotary disk-mowers comprising a box-like body (2) which is constituted by an upper (3) and a lower (4) half-shell and supports, inside it, gears for the actuation of the cutter disks and idler gears (8) which mutually connect the actuation gears. The peculiarity of the device is constituted by the fact that it comprises pivots (11) for supporting the idler gears (8), each pivot (11) being constituted by a through element (28) which joins the half-shells and is provided with coupling regions which can be subjected to force-fitting, respectively in an upper hole (21), formed by the upper half-shell, and in a lower hole (22), formed by the lower half-shell, so as to form seats for sealed coupling between the through element (28) and the box-like body. Coupling means are furthermore provided for the locking of the through element on the box-like body. <IMAGE>
Patent IT-MI921350-A1 (IT)
Title: Apparecchiatura elettronica per il controllo dell'interlacciatura dei  fili nel processo di filatura per fili continui
Inventor: PIANA PAOLO
IPC: B65H63/06
Filed: 1992-06-01
Abstract: Il presente trovato ha, come oggetto un'apparecchiatura elettronica, per il controllo dell'interlacciatura dei fili, nel processo di filatura per fili continui, caratterizzata dal fatto di comprendere un gruppo di rilevazione delle interlacciature sui fili, operativamente connesso ad un gruppo di comando dell'azionamento di una taglierina che agisce sul filo, se questo presenta interlacciature non corrispondenti a valori preimpostati.
Patent IT-MI931727-A1 (IT)
Title: Derivati di 5-isochinolinsolfonammidi
Inventor: LEVI SILVIO
IPC: C07D/
Filed: 1993-07-30
Abstract: Composti di formula generale (I): (FORMULA I) dove R è un derivato di amminoacido o di peptide o un gruppo ciclouretanico,sono dotati di attività inibitrice della protein-chinasi.
Patent IT-MI931827-A1 (IT)
Title: Dispositivo spargitore
Inventor: STOCKL FRIEDRICH
IPC: A01C3/06
Filed: 1993-08-13
Abstract: L'invenzione si riferisce ad un dispositivo spargitore, specialmente spandiconcime e spandicomposta con un'alimentazione per il materiale da spargere, per esempio una vasca preferibilmente con avanzamento nel fondo di raschietti, una carcassa per rotore, portata da un telaio di macchina, con un rotore alimentatore e un rotore espulsore e con un dispositivo di azionamento, caratterizzato dal fatto, che il rotore espulsore (4) è girevole intorno all'asse di rotazione orizzontale (19) del rotore alimentatore (3).
Patent IT-MI940482-A1 (IT)
Title: Blocco dell'apertura del cofano del vano motore degli autoveicoli
Inventor: GRITTI BOTTACCO CARLO MASSIMIL
IPC: B60R/
Filed: 1994-03-16
Abstract: Un dispositivo (S2), racchiuse in un contenitore (3), da applicare all'interno del vano motore degli autoveicoli (1), atto ad impedire l'apertura del cofano da parte di male intenzionati.Il dispositivo (S2), costituito essenzialmente da un solenoide e da un relè elettrico (S), impedisce lo scorrimento della funicella (2) e dell'astina (4) che si utilizzano per l'apertura delle scrocce di chiusura del vano motore, scorrimento che viene normalmente realizzato mediante una leva posta nell'abitacolo dell'autoveicolo.L'azionamento del solenoide e relè (S) avviene mediante la chiusura dei contatti (1) e (2) che si realizza contemporaneamente alla manovra della leva (10).
Patent IT-MI950507-A1 (IT)
Title: Composizioni polimeriche autoestinguenti
Inventor: ROMA PIERPAOLO
IPC: C08L25/00
Filed: 1995-03-16
Abstract: Composizioni polimeriche comprendenti:a) almeno un (co) polimero vinilaromatico;b) da 0,1 a 5 parti in peso, rispetto a 100 parti di componente (a), di una poliolefina fluorurata o perfluorurata;c) da 2 a 15 parti in peso, rispetto a 100 parti di componente (a), di almeno un ossido di antimonio,d) da 6 a 30 parti in peso, rispetto a 100 parti di componente (a), di un additivo antifiamma alogenato di formula generale (I): (FORMULA I) eventualmente in miscela con una poliolefina clorurata.
Patent IT-MI950613-A1 (IT)
Title: Sistema di trattamento di biogas e percolati di rifiuti solidi  urbani
Inventor: CASETTI GAETANO
IPC: F23G/
Filed: 1995-03-27
Abstract: Viene descritto un sistema di trattamento di biogas e percolati di RSU, utilizzante almeno un gruppo elettrogeno (10) alimentato a biogas per la produzione di energia elettrica, in cui è previsto il recupero dell'energia termica prodotta da uno scambiatore di calore (20) per il raffreddamento di detti gruppi elettrogeni (10), per alimentare un evaporatore (30) per lo smaltimento del percolato.
Patent IT-RM920394-A1 (IT)
Title: Dispositivo di copertura mobile e di isolamento termico per serre e  simili.
Inventor: CROBU COSTANTINO
Filed: 1992-05-28
Abstract: Il dispositivo comprende più paratie isolanti 1 mosse automaticamente con motore elettrico 4 e scorrevoli su appositi binari 6, così da essere sollevare durante il giorno e abbassate quando necessario a protezione delle vetrate V delle serre R o simili.
Patent IT-TV940028-A1 (IT)
Inventor: ROMANATO MARIAROSA
IPC: A43B23/02
Filed: 1994-03-09
Abstract: PCT No. PCT/EP95/00854 Sec. 371 Date Nov. 2, 1995 Sec. 102(e) Date Nov. 2, 1995 PCT Filed Mar. 8, 1995 PCT Pub. No. WO95/24305 PCT Pub. Date Sep. 14, 1995A method of manufacturing footwear, including the steps of positioning a sock portion over a mold element in which the sock portion comprises a fabric layer and a thermoplastic film layer connected to the fabric layer, such that the thermoplastic film layer is positioned between the mould element and the fabric layer, and injection-molding a thermoplastic material to the sock portion positioned over the mold element such that heated thermoplastic material flows through the fabric layer and bonds with the thermoplastic film layer and such that the thermoplastic material at least partially covers the fabric layer for forming a portion of an item of footwear.
Patent IT-TV950080-A1 (IT)
Title: Ghetta per calzature sportive
Inventor: FOFFANO MASSIMO
IPC: A41D17/00
Filed: 1995-06-30
Abstract: La presente domanda ha per oggetto una ghetta per calzature sportive del tipo comprendenti una tomaia presentante mezzi di serraggio.La ghetta risulta essere costituita da un primo elemento semirigido avvolgente a tenuta la tomaia e presentante primi fori per l'accesso a detti mezzi di serraggio.A costituire la tomaia concorre inoltre un secondo elemento, essenzialmente floscio, connesso al precedente ed avvolgente la parte bassa della gamba.La ghetta così concepita permette all'utilizzatore di intervenire sul grado di serraggio della calzatura in qualsiasi momento durante la pratica sportiva, senza dover preventivamente disassociare da quest'ultima la ghetta stessa.
Patent NO-20121313-A1 (NO)
Title: Kraftsystem og fremgangsmate med fjern variabel-frekvens-styring (VFD)
Inventor: BURDICK JOHN F
IPC: H02J13/00
Filed: 2012-11-08
Abstract: I hvert fall i noen utførelsesformer innbefatter et system et første fjernt verktøy. Systemet innbefatter også et variabelt frekvensdrev (VFD - Variable Frequency Drive) koblet til det første fjerne verktøyet, der utmålingen fra VFD'en driver det første verktøyet og der i hvert fall en del av VFD'en befinner seg ved det første fjerne verktøyet.
Patent NO-20140204-A1 (NO)
Title: Fremgangsmåte og apparat for fasesynkronisering av MWD- eller vaierline-verktøy separert i borestrengen
Inventor: FORGANG STANISLAV W
IPC: E21B47/00
Filed: 2014-02-18
Abstract: Foreliggende oppfinnelse vedrører apparater og fremgangsmåter for estimering av et faseavvik i grunnformasjoner. Fremgangsmåten kan inkludere estimering avfaseavviket gjennom sammenlikning av signaler generert og mottatt av en første komponent, der det andre signalet er utsendt av en andre komponent som har blitt synkronisert av signalet generert av den første komponenten. Signalene kan bli kommunisert ved hjelp av en første antenne på den første komponenten og en andre antenne på den andre komponenten. Signalene kan anvende en valgt frekvens. Synkronisering kan finne sted uten elektrisk kommunikasjon mellom de første og andre komponentene. Fremgangsmåten kan inkludere kompensering for en forplantningsforsinkelse i signalene ved hjelp av faseavviket. Fremgangsmåten kan inkludere bruk av et tidsstempel under synkroniseringen. Apparatet kan innbefatte en første antenne og en andre antenne henholdsvis på den første og den andre komponenten, begge innrettet for å sende ut og motta elektromagnetiske signaler.
Patent NO-20150241-A1 (NO)
Title: Subsea production system with downhole equipment suspension system.
Inventor: THEISS DAVID H
IPC: E21B33/035
Filed: 2015-02-19
Abstract: A subsea production system for a well including a subsea production tree, a tubing hanger, and a production tubing extending into the well and supported by the tubing hanger. A downhole equipment suspension system includes a suspension head supported directly or indirectly by the production tree above and separately from the tubing hanger. The suspension system also includes downhole equipment inside the production tubing below the tubing hanger and a suspension line extending through the tubing hanger vertical production bore and the production tree vertical bore. The suspension line suspends the downhole equipment from the suspension head.
Patent PE-20000275-A1 (PE)
Title: Proceso mejorado de intercambio y regeneracion de iones para la separacion y el retiro de iones de hierro (iii) de soluciones acuosas de acido sulfurico que contienen iones metalicos
Inventor: DREISINGER DAVID B
IPC: C02F1/42
Filed: 1999-01-12
Abstract: SE REFIERE A UN PROCESO QUE COMPRENDE : i) PONER EN CONTACTO UNA SOLUCION ACUOSA DE ACIDO SULFURICO QUE CONTIENE IONES METALICOS, DE PREFERENCIA IONES HIERRO (III) Y IONES DE VALENCIA MENOR DE +3 TALES COMO MANGANESO (II), COBRE (II) Y COBALTO (II), CON UN COPOLIMERO DEGRADADO INSOLUBLE CON MULTIPLES GRUPOS SUSPENDIDOS DIFOSFONATO GEMINAL DE FORMULA CH(PO3R2)2 o -C(PO3R2)2-, EN DONDE R ES UN CATION MONOVALENTE O DIVALENTE COMO HIDROGENO, AMONIO O UN CATION DE METAL ALCALINO; ii) MANTENER (i) EL TIEMPO SUFICIENTE PARA FORMAR IONES HIERRO (III) LIGADO DE FASE SOLIDA Y UNA FASE LIQUIDA ACUOSA QUE CONTIENE ACIDO SULFURICO Y LOS IONES DE VALENCIA MENOR DE +3; iii) SEPARAR LA FASE SOLIDA Y LA FASE LIQUIDA; iv) PONER EN CONTACTO LA FASE SOLIDA CON UNA SOLUCION REDUCTORA ACUOSA LIBRE DE SO2 LA CUAL CONTIENE DE 0,1 M A 6 M DE ACIDO SULFURICO Y IONES COBRE (I) SUFICIENTE PARA REDUCIR LOS IONES HIERRO (III) LIGADO DE FASE SOLIDA A IONES HIERRO (II) PARA FORMAR UNA SEGUNDA MEZCLA DE FASE SOLIDA/LIQUIDA; v) MANTENER LA MEZCLA OBTENIDA EN (iv) A UNA TEMPERATURA ENTRE 65°C Y 95°C EN TIEMPO SUFICIENTE PARA FORMAR UNA FASE LIQUIDA DE SOLUCION REDUCTORA ACUOSA QUE TIENE IONES HIERRO (II) Y UN MEDIO INTERCAMBIADOR DE IONES DE FASE SOLIDA REGENERADO; vi) SEPARAR LA FASE LIQUIDA DEL MEDIO INTERCAMBIADOR
Patent PE-14096-A1 (PE)
Title: Circuito hibrido universal de linea
Inventor: BERNALES PACHECO VICTOR
IPC: H04M7/00
Filed: 1995-02-16
Abstract: COMPRENDIDO POR: A) UN PUENTE DE ALIMENTACION, ENCARGADO DE DOTAR A LA LINEA LA TENSION ADECUADA, GENERAR LA SENALIZACION EN FORMA PROGRAMADA PARA EL BUCLE CONECTADO A SU SALIDA, REALIZA LA INTERFASE EN CORRIENTE CONTINUA CON EL ABONADO; B) UNA ZONA HIBRIDA Y DE INTERFAZ DIGITAL, CONVIRTIENDO LA SENAL ANALOGICA-DIGITAL Y DIGITAL-ANALOGICA, Y DETECTA SI EL CIRCUITO A SENALIZAR ES DE LINEA DE ABONADO O DE ENLACE CON OTRA SENAL, PARA ASI PODER PRAGRAMAR DIGITALMENTE LA ALIMENTACION O NO DEL MISMO; C) UNA CARGA ACTIVA, QUE CONFIGURA EL CIRCUITO EN FORMA DE TERMINAL PARA REALIZAR EL DESCOLGADO DE LA LINEA; D) UN CONVERTIDOR DC/DC QUE OPTIMIZA LAS NECESIDADES DEL CIRCUITO; Y E) UN BLOQUE DE CONTROL Y CONMUTACION, QUE PROTEGE AL CICUITO FRENTE A SOBRETENSIONES , CORTOS CIRCUITOS, Y CONDICIONA LA TENSION EN LOS TERMINALES. ES UTILIZADO COMO REGISTRADOR DE LAS CENTRALES TELEFONICAS QUE PERMITAN LA SENALIZACION DE LLAMADAS
Patent PE-37296-A1 (PE)
Title: Emulsionador
Inventor: VENTER PAUL NICHOLAAS
IPC: C06B47/14
Filed: 1995-12-20
Abstract: CARACTERIZADO PORQUE COMPRENDE: 1) POR LO MENOS UN ESTER DE UNA COMPOSICION POLIHIDRICA QUE PUEDE CONTENER UN ALCOHOL, UN AZUCAR QUE PUEDE SER MONOSACARIDO O POLISACARIDO, PREFERIBLEMENTE UN DERIVADO DEL SORBITOL Y/O UN DERIVADO DEL SORBITAN; Y 2) UN ACIDO ORGANICO MONO-BASICO O POLI-BASICO QUE CONTENGA DE 2 A 50 ATOMOS DE CARBONOS, PREFERIBLEMENTE POLI-ISO-BUTILENO-SUCCINICO-ANHIDRIDO; SE REFIERE ADEMAS A UN EXPLOSIVO DE EMULSION QUE TIENE UN pH ENTRE 0,5 Y 6,5 CARACTERIZADO POR CONTENER: A) DE 0% A 35% DE SALES DE NITRATO; B) DE 0,1% A 3% DEL EMULSIVO DESCRITO ANTERIORMENTE; C) DE 0% A 2% DE CO-EMULSIVO; D) DE 0,01% A 2% DE ESTER FOSFATO; E) DE 2,5% A 20% DE ACEITE (O ACEITE Y CERA); F) DE 1% A 24% DE AGUA; G) DE 0,1% A 2% DE ACIDO TARTARICO; Y H) DE 0,05% A 5% DE REACTIVO GASIFICADOR, SIENDO EL RESTO NITRATO DE AMONIO
Patent PL-267592-A1 (PL)
Title: Device for disintegrated o volume discharge of granulated materials from granulate dispenser
IPC: A01C7/12
Filed: 1987-09-04
Abstract: In a granulate spreader with a cellular wheel (1), at the transfer point between the funnel (10) and cellular wheel a stripper device (11) is arranged adjustably in the gap between the cellular wheel (1) and the surrounding housing (7). This prevents damage to the housing inner wall by granulate projecting from the recesses (37) of the cellular wheel and ensures an exact dispensing of the granulate to be discharged. In an alternative version serving the same purpose, free spaces assigned to the recesses of the cellular wheel receiving the granulate are provided in the form of depressions, channels, shafts or the like, to which the granulate distribution line is connected (Fig. 2). <IMAGE>
Patent PL-288299-A1 (PL)
Title: Method of obtaining carbolic acid
Inventor: BUIJS WIM
IPC: C07C37/055
Filed: 1990-12-17
Abstract: The invention relates to a method for the preparation of a phenol by an oxidative decarboxylation in the liquid phase of the corresponding aryl carboxylic acid in the presence of a dissolved Cu-containing catalyst, the phenol being obtained through a hydrolysis step. The characteristic part of the method comprises the following process steps:     a) catalyst oxidation at 120-190  DEG C;   b) a reduction and hydrolysis step at 225-270  DEG C; o
Patent PL-296973-A1 (PL)
Title: Method of conducting a catalyzed estrification process
IPC: B01J35/10
Filed: 1992-12-11
Abstract: Esters may be produced with a minimum formation of ether by-product by reacting an organic acid, organic acid anhydride or ester with an alcohol at elevated temperatures in the presence of vinylaromatic polymer beads which are surface functionalized with strongly acidic functional groups, the inner volume of the polymer beads remaining unfunctionalized.
Patent PL-298239-A1 (PL)
Title: Genetic sequences encoding the enzymes of flavonoid path and their applications
Inventor: HOLTON TIMOTHY ALBERT
IPC: A01H5/02
Filed: 1992-07-08
Abstract: The present invention relates to a nucleic acid isolate comprising a sequence of nucleotides encoding, or complementary to a sequence encoding, a dihydrokaempferol (DHK) hydroxylating enzyme or derivative or part thereof. The present invention also relates to transgenic plants carrying and expressing the above mentioned nucleic acid material.
Patent PL-301253-A1 (PL)
Title: Vaccine for prevention of poultry capsule infective diseases, method of administering such vaccine and method of preparing same
Inventor: GUTTER BEZALEL
IPC: A61K39/395
Filed: 1993-11-30
Abstract: The invention relates to a vaccine for the prevention of Infectious Bursal Disease in poultry comprising an effective immunizing amount of a live attenuated intermediately-pathogenic IBD virus belonging to the strain deposited at the ECACC under No. V92052301 (MB), an effective immunizing amount of a live attenuated intermediately-pathogenic IBD virus belonging to the strain deposited at the ECACC under No. V92100106 (MB-2), or an effective immunizing amount of a live attenuated intermediately-pathogenic IBD virus belonging to the strain deposited at the ECACC under No. V92102209 (MB-1). In addition, the invention relates to a method of preventing Infectious Bursal disease in poultry by administering to the birds an effective immunizing amount of the said vaccines. The invention relates to three novel virus strains deposited at the ECACC under No. V92052301 (MB), under No. V92100106 (MB-2) and under No. V92102209 (MB-1). Furthermore, the invention relates to a method of preparing live vaccines which protect poultry against Infectious Bursal Disease, containing an effective immunizing amount of a virus of the strain deposited at the ECACC under No. V92052301 (MB) and/or No. V92100106 (MB-2) and/or No. V92102209 (MB-1).
Patent PL-304600-A1 (PL)
Title: Human insulin preparation and method of obtaining same
Inventor: HOFFMANN JAMES ARTHUR
IPC: C07K14/575
Filed: 1994-08-09
Abstract: The present invention is directed to an insulin formulation comprising a suspension of Ultralente crystals and a total formulation zinc concentration of between about 0.5 milligrams to about 20 milligrams per 100 units of insulin. Greater than fifty percent of the total zinc in the formulation resides in the soluble fraction, rather than in complex with the insulin. This insulin formulation generally has a pH from between about 6.0 to about 7.4. In addition, the insulin formulation of the present invention does not contain other proteins like protamine. This zinc-modified formulation displays characteristics of a very long lasting human insulin product.
Patent PL-317155-A1 (PL)
Title: Method of making electromagnetic steel sheet of oriented grain especially for transformers
Inventor: BAVAY JEAN-CLAUDE
IPC: C21D8/12
Filed: 1996-03-08
Abstract: Electrical steel sheet is made by concasting steel of composition in wt. %:- 0.02-0.09 C; 2.5-4 Si; 0.027-0.17 Mn; 0.007-0.02 S; 0.01-0.03 Al; 0.004-0.012 N; 0.06-5 Cu; balance Fe and impurities. The concast slab or strip is reheated to 1200-1300 deg. C before being hot rolled to a thickness of 1-5 mm and then coiled at 500-700 deg. C. The strip is then cold rolled to below 0.5 mm, annealed to produce a primary recrystallisation and a decarburisation in a moist atmosphere and then coated with MgO. Finally it is annealed to produce a secondary recrystallisation and coated with an insulation layer which is fired.
Patent PL-320082-A1 (PL)
Title: Method of assembling automotive vehicles
Inventor: BASLER NORBERT
IPC: B62D25/08
Filed: 1995-10-24
Abstract: PCT No. PCT/DE95/01494 Sec. 371 Date Apr. 25, 1997 Sec. 102(e) Date Apr. 25, 1997 PCT Filed Oct. 24, 1995 PCT Pub. No. WO96/13421 PCT Pub. Date May 9, 1996A motor vehicle is produced by joining two semifinished, preassembled bodies, a front structure and a rear structure. Each of these structures are preassembled with associated automobile components. That is, the front structure is assembled with engine, transmission (for a front engine mounted car), and related components, instrument panel, steering wheel, etc. The front structure is also semifinished in a standard color. The rear structure has preassembled decorative components, such as seats, carpeting, covering, etc. The rear structure has the final finish (in the desired final color). The windshield frame can be part of either the front or the rear structure. The roof is part of the rear structure. The front and the rear structure are joined together near the middle of the vehicle body. Existing assembly tools can be used to join the front and rear structures. After the front and rear structures are joined, the front structure is finished with the final color, matching that of the rear structure. Thereafter, additional components, which are finished with the final color, such as a mudguard, an engine hood or bonnet, doors, and other outer covering, namely a bumper, and a radiator grille, are connected to the joined structures.
Patent PL-321514-A1 (PL)
Title: Architecure of situating the network indentification information for use in mobile communication systems
Inventor: WILLARD DAVID FRANK
IPC: H04B7/26
Filed: 1996-01-22
Abstract: Network roaming information (NRI), which comprises identifies a network (200) and a service area (210) within the network (200), a receiver address, is transmitted in a network (200) during a predetermined number of time slots of a signal, whereby the signal is transmitted in consecutive cycles, each cycle comprising a plurality of consecutive time slots. The placement of the NRI in the transmitted signal is made to be predicted by a receiver so that the receiver can compute an expected time slot location of a NRI to be compared with a stored NRI. The placement of the NRI is made according to an algebraic relationship between moduloN of the transmission frequency of the signal, moduloN of the order of the cycle, and moduloN of a portion of the NRI, wherein N is an integer.
Patent PL-323817-A1 (PL)
Title: Method of transforming 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines
Inventor: CHEN YUHPYNG L
IPC: C07D213/64
Filed: 1995-06-06
Abstract: This invention relates to a process for converting 2,4-dichloropyridines into 2-aryloxy-4-chloropyridines, comprising reacting a compound of formula (I), wherein R1 is (C1-C4)alkyl; R2 is methyl or ethyl; and R3, R4 and R5 are selected, independently, from (C1-C4)alkyl and (C1-C4)alkoxy; or a pharmaceutically acceptable salt thereof; comprising reacting a compound of formula (II), wherein R1 and R2 are defined as above, with a compound of formula (III), wherein R3, R4 and R5 are defined as above, in the presence of a base that is capable of deprotonating the compound of formula (III), optionally in the presence of an organometallic halide or oxide and a suitable solvent, and then optionally converting the resulting compound of formula (I) into a pharmaceutically acceptable salt of such compound.