CAS: 1435-52-5; 1,4-Dibromo-2-Fluorobenzene

相似化合物

327-51-5 399-94-0 128259-71-2

上下游产品

CAS号3638-73-1 2,5-二溴苯胺 | CAS号1050423-91-0 2-(2-氟-4-碘苯基)-4... | CAS号321-60-8 2-氟联苯 | CAS号113770-42-6 2′-氟-1,1′:4′,1′′-三联苯 | CAS号95970-08-4 2,5-二溴苯甲醚 | CAS号57848-46-1 4-溴-2-氟苯甲醛 | CAS号66826-78-6 5-溴-2,3-二氢苯并呋喃 | CAS号603122-84-5 2-氟-4-(甲氧基羰基)苯硼酸 | CAS号1050423-87-4 4-羧基-2-氟苯基硼酸频那醇酯 | CAS号112704-79-7 4-溴-2-氟苯甲酸 | CAS号137000-66-9 1,4-二乙炔基-2-氟苯

2,5-二溴苯胺置于盐酸,Tetrafluoroboric Acid,Sodium Nitrite体系中,化学反应生成1,4-二溴-2-氟苯
参考文献:Pavlath; Olah,Acta Chimica Academiae Scientiarum Hungaricae,1957,Vol. 10,P. 227,229
标题:Pavlath; Olah,Acta Chimica Academiae Scientiarum Hungaricae,1957,Vol. 10,P. 227,229

专利信息

专利号:US-7615300-B2
优先权日:2005-08-30
标 题 :Development of novel proton-conductive polymers for proton exchange membrane fuel cell (PEMFC) technology
发明人：BAE CHULSUNG
权利人:REGENTS UNIVERSITY AND COMMUNI
摘要:New thermally and chemically stable sulfonic acid-containing polymers are synthesized via post-sulfonation of aromatic polymers. These new polymers provide unique benefits to proton exchange membrane fuel cell technology (“PEMFCâ€?). As a sulfonic acid moiety can be easily installed into an aromatic ring via electrophilic sulfonation, even in the presence of an electron-withdrawing substituent such as —F, rigid polymers consisting of aromatic rings at either the side chain or main chain can be prepared with a wide range of substituents and flexibility in properties. Novel synthetic procedures are provided for synthesis of the polymers.

专利号:US-8716532-B2
优先权日:2009-03-27
标 题:One pot multicomponent synthesis of some novel hydroxy stilbene derivatives with alpha, beta-carbonyl conjugation under microwave irradiation
发明人：SHARMA ABHISHEK; SINHA ARUN KUMAR; KUMAR RAKESH; SHARMA NAINA
权利人:SHARMA ABHISHEK; SINHA ARUN KUMAR; KUMAR RAKESH; SHARMA NAINA; COUNCIL SCIENT IND RES
摘要:The present invention provides a method for the preparation of some novel multiconjugated 2- or 4-hydroxy substituted stilbenes. The method provides one pot multicomponent approach wherein 3-4 step reaction sequences viz. condensation, decarboxylation and Heck coupling occur simultaneously which results in an enhanced yield of desired products and reduced reaction times.

专利号:US-2002107391-A1
优先权日:2000-10-25
标 题:Process for the synthesis of an endothelin receptor antagonist
发明人：FREY LISA F; CHEN CHENG Y; LI JING; SONG ZHIGUO J; TAN LUSHI; TILLYER RICHARD D; TSCHAEN DAVID M; ZHAO MATTHEW M
摘要:The present invention relates to a practical and efficient way to synthesize the compound for the endothelin receptor antagonist involving a Grignard addition and a cyclization reaction to give a desired compound of the general formula shown below:

专利号:US-8692026-B2
优先权日:2010-07-15
标题:Processes for producing 4-bromo-2-methoxybenzaldehyde
发明人：GIARD THIERRY J; MUTTERER VINCENT L; DURVAUX CHRISTOPHE
权利人:GIARD THIERRY J; MUTTERER VINCENT L; DURVAUX CHRISTOPHE; ALBEMARLE CORP
摘要:A new synthesis of 4-bromo-2-methoxybenzaldehyde is reported from 1,4 dibromo 2-fluorobenzene. First, 2-fluoro-4-bromobenzaldehyde is prepared through metal halogen exchange and formylation with a formyl source at 0° C. After crystallization, this intermediate is reacted with methanol in the presence of potassium carbonate. Subsequently, 4-bromo-2-methoxy-benzaldehyde is crystallized.

专利号:US-2012165567-A1
优先权日:2009-03-27
标 题 :One pot multicomponent synthesis of some novel hydroxy stilbene derivatives with alpha, beta-carbonyl conjugation under microwave irradiation

专利号:WO-2010113005-A2
优先权日:2009-03-27
标题 :One pot multicomponent synthesis of some novel hydroxy stilbene derivatives with alpha, beta-carbonyl conjugation under microwave irradiation