CAS: 2402-77-9; 2,3-Dichloropyridine

相似化合物

6515-09-9 16063-70-0 2402-79-1

上下游产品

CAS号6298-19-7 2-氯-3-氨基吡啶 | CAS号462-08-8 3-氨基吡啶 | CAS号49609-84-9 2-氯-3-吡啶羧酸 | CAS号6515-09-9 2,3,6-三氯吡啶 | CAS号2402-78-0 2,6-二氯吡啶 | CAS号5470-18-8 2-氯-3-硝基吡啶 | CAS号13472-84-9 3-氯-2-甲氧基吡啶 | CAS号626-60-8 3-氯吡啶 | CAS号177743-06-5 3-氯-2-乙氧基吡啶 | CAS号105529-94-0 8-methoxy-9H-py... | CAS号39620-04-7 3-氯-2-氨基吡啶 | CAS号393513-95-6 (3R)-1-(3-氯吡啶-2... | CAS号38180-46-0 3-氯-2-氰吡啶 | CAS号951677-39-7 2,3-二氯吡啶-4-硼酸 | CAS号500011-86-9 3-溴-1-(3-氯-2-吡啶... | CAS号185315-52-0 2-(3-氯吡啶-2-基)乙腈 | CAS号244-76-8 9H-吡啶并[2,3-B]吲哚 | CAS号884495-41-4 2,3-二氯吡啶-4-甲醛 | CAS号87394-57-8 1-(3-氯吡啶-2-基)-4-甲基哌嗪

3-氯-2-羟基吡啶置于五氯化磷体系中,用 1,2-二氯乙烷 用作溶剂,化学反应 10.0H,以94.9%的收率获得2,3-二氯吡啶
参考文献:一种2,3-二氯吡啶的制备方法
标题:一种2,3-二氯吡啶的制备方法
摘要:本发明提供一种2,3‑二氯吡啶的制备方法.本发明方法经由中间产物2‑羟基‑3‑氯吡啶制备2,3‑二氯吡啶;利用2‑哌啶酮为原料,经氯代反应制备3,3‑二氯‑2‑哌啶酮,然后经消除和氧化反应制备2‑羟基‑3‑氯吡啶,最后利用所得2‑羟基‑3‑氯吡啶和氯代试剂作用,经取代反应制备2,3‑二氯吡啶.本发明方法原料价廉易得,成本低,反应中间体和原料稳定,操作安全简便,废水产生量少,绿色环保,反应选择性高,副反应少,产品收率和纯度高,适于工业化生产.

专利信息

专利号:WO-2009018504-A1
优先权日:2007-08-01
标题 :Process for the synthesis of diaminopyridine and related compounds
发明人：RITTER JOACHIM C
权利人:DU PONT; RITTER JOACHIM C
摘要:A process is provided for the synthesis of a diaminopyridine, such as 2,6-diaminopyridine and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a chlorine-ammonia displacement in the presence of a copper source.

专利号:US-2013338369-A1
优先权日:2011-03-07
标 题 :Process for the Synthesis of Aminobiphenylene
发明人：HEINRICH MARKUS; PRATSCH GERALD
权利人:HEINRICH MARKUS; PRATSCH GERALD; BASF SE
摘要:The present invention relates to a process for the synthesis of 2-aminobiphenylene and derivatives thereof by reacting a benzene diazonium salt with an aniline compound under basic reaction conditions.

专利号:WO-2021033172-A1
优先权日:2019-08-20
标题:Process for the preparation of chlorantraniliprole
发明人：V ASHWIN; PRADHAN ASHOK KUMAR; PALIMKAR SANJAY SAMBHAJIRAO; MANE AVINASH SHESHRAO; KUNHIMON SYAM KUMAR UNNIARAN
权利人:EUROFINS ADVINUS LTD
摘要:The present invention relates to two novel, efficient and one-pot methods for synthesizing chlorantraniliprole. In the first scheme, Chlorantraniliprole is prepared by a novel telescopic process starting from 3-Bromo-1-(3-chloropyridin-2-yl)-1H-pyrazole-5-carboxylic acid a key raw material-A (Key RM-A). In the second scheme, starting from Key RM-A, the process steps use of a novel variant of anthranilic acid (Methyl 2-amino-5-chloro-3-methylbenzoate), to get Chlorantraniliprole. Furthermore, the present invention also relates to the synthesis of key starting material for the synthesizing chlorantraniliprole in-situ. All the in-situ steps of the disclosed synthesis methods obtain good yield, without using any expensive reagent or base or harsh reaction conditions, which makes the process simple, environment friendly and more cost effective. With this process the production cost of chlorantraniliprole and its intermediates is substantially reduced; fewer by-products are formed during its synthesis and since it's a one-pot reaction, isolation and purification are easy to achieve.

专利号:US-2023018429-A1
优先权日:2019-11-22
标 题 :Process for synthesis of (3-chloro-2-pyridyl)hydrazine
发明人：CHOCKALINGAM DEVARAJAN; DUDHAT VIPUL; KHARATKAR RAJU MAHADEV; MAO JIANHUA; VEKARIYA PANKAJKUMAR; BHATT DHARMESH BALVANTRAI
权利人:FMC CORP; FMC AGRO SINGAPORE PTE LTD
摘要:Described herein are novel methods of synthesizing (3-chloro-2-pyridyl)hydrazine. Compounds prepared by the methods disclosed herein are useful for preparation of certain anthranilamide compounds that are of interest as insecticides, such as, for example, the insecticides chlorantraniliprole and cyantraniliprole.

专利号:US-9574189-B2
优先权日:2005-12-01
标题:Enzymatic encoding methods for efficient synthesis of large libraries
发明人：FRANCH THOMAS; LUNDORF MIKKEL DYBRO; JACOBSEN SØREN NYBOE; OLSEN EVA KAMPMANN; ANDERSEN ANNE LEE; HOLTMANN ANETTE; HANSEN ANDERS HOLM; SØRENSEN ANDERS MALLING; GOLDBECH ANNE; DE LEON DAEN; KALDOR DITTE KIEVSMOSE; SLØK FRANK ABILDGAARD; HUSEMOEN GITTE NYSTRUP; DOLBERG JOHANNES; Jensen Kim Birkebæ; PEDERSEN LENE; NØRREGAARD-MADSEN MADS; GODSKESEN MICHAEL ANDERS; GLAD SANNE SCHRØDER; NEVE SØREN; THISTED THOMAS; KRONBORG TINE TITILOLA AKINLEMINU; SAMS CHRISTIAN KLARNER; FELDING JAKOB; FRESKGÃ…RD PER-OLA; GOULIAEV ALEX HAAHR; PEDERSEN HENRIK
权利人:FRANCH THOMAS; LUNDORF MIKKEL DYBRO; JACOBSEN SØREN NYBOE; OLSEN EVA KAMPMANN; ANDERSEN ANNE LEE; HOLTMANN ANETTE; HANSEN ANDERS HOLM; SØRENSEN ANDERS MALLING; GOLDBECH ANNE; DE LEON DAEN; KALDOR DITTE KIEVSMOSE; SLØK FRANK ABILDGAARD; HUSEMOEN GITTE NYSTRUP; DOLBERG JOHANNES; Jensen Kim Birkebæ; PEDERSEN LENE; NØRREGAARD-MADSEN MADS; GODSKESEN MICHAEL ANDERS; GLAD SANNE SCHRØDER; NEVE SØREN; THISTED THOMAS; KRONBORG TINE TITILOLA AKINLEMINU; SAMS CHRISTIAN KLARNER; FELDING JAKOB; FRESKGÃ…RD PER-OLA; GOULIAEV ALEX HAAHR; PEDERSEN HENRIK; NUEVOLUTION AS
摘要:Disclosed is a method for obtaining a bifunctional complex comprising a molecule linked to a single stranded identifier oligonucleotide, wherein a nascent bifunctional complex comprising a chemical reaction site and a priming site for enzymatic addition of a tag is a) reacted at the chemical reaction site with one or more reactants, and b) reacted enzymatically at the priming site with one or more tag(s) identifying the reactant(s).

专利号:US-2024309013-A1
优先权日:2021-11-19
标 题:SYNTHESIS OF 2'-(7,7-dimethyl-1'H,7H-spiro[furo[3,4-b]pyridine-5,4'-piperidin]-1'-yl)-1,3-dihydro-4'H-spiro[indene-2,5'-[1,3]oxazol]-4'-one
发明人：ADAM JEAN-MICHEL; BACHMANN STEPHAN; BIGLER RAPHAEL; DOTT PASCAL; FANTASIA SERENA MARIA; GROSSE-SENDER KATJA; JAMES PHILIPPE; SPURR PAUL; THUN JUERGEN; TONAZZI SANDRO; TOSATTI PAOLO
权利人:HOFFMANN LA ROCHE
摘要:The invention provides crystalline forms of 2′-(7,7-dimethyl-1′H,7H-spiro[furo[3,4-b]pyridine-5,4′-piperidin]-1′-yl)-1,3-dihydro-4′H-spiro[indene-2,5′-[1,3]oxazol]-4′-one, and a process for converting Form A to Form B for use in medicaments for treatment of anxiety, depression, irritability, impaired social interactions and psychomotor coordination, and other indications. The invention further provides processes to manufacture 2′-(7,7-dimethyl-1′H,7H-spiro[furo[3,4-b]pyridine-5,4′-piperidin]-1′-yl)-1,3-dihydro-4′H-spiro[indene-2,5′-[1,3]oxazol]-4′-one. Also disclosed are compounds useful as intermediates in the methods of the invention.