Detail of "13472-85-0"

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CAS Number:
13472-85-0
Name:
5-Bromo-2-methoxypyridine
Molecular Structure:
Formula:
C₆H₆BrNO
Molecular Weight:
188.02
Synonyms:
Pyridine, 5-bromo-2-methoxy-;2-Methoxy-5-Bromopyridine;2-Methyloxy-5-bromopyridine;
Density:
1.53 g/cm³
Boiling Point:
197 °C at 760 mmHg
Flash Point:
72.9 °C
Appearance:
light yellow liquid
Hazard Symbols:
Xi,Xn
Risk Codes:
36/37/38-20/21/22
Safety:
26-36-36/37/39 Details

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Preparation of 5-(2'-pyridyl)-2-pyridone derivatives: Preparation of 5-(2'-pyridyl)-2-pyridone derivatives. Koyakumaru, Kenichi; Matsuo, Yoshimi; Satake, Youichi (Kuraray Co., Ltd.; Eisai Co., Ltd., Japan). PCT Int. Appl. WO 2004009553 A1 29 Jan 2004, 24 pp. DESIGNATED STATES: W: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, KE, KG, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW, AM, AZ, BY, KG, KZ, MD, RU, TJ, TM; RW: AT, BE, BF, BJ, CF, CG, CH, CI, CM, CY, DE, DK, ES, FI, FR, GA, GB, GR, IE, IT, LU, MC, ML, MR, NE, NL, PT, SE, SN, TD, TG, TR. (Japanese). (World Intellectual Property Organization). CODEN: PIXXD2. CLASS: ICM: C07D213-64. ICS: C07D213-69. APPLICATION: WO 2003-JP9316 23 Jul 2003. PRIORITY: JP 2002-214098 23 Jul 2002. DOCUMENT TYPE: Patent CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) Title compds. I (R1 = aryl, substituted aryl; R2, R3, R4 = H, alkyl, aryl, etc.; R6, R7, R8, R9 = H, alkyl, aryl, etc.) are prepd. 13472-85-0 and 381725-49-1 which are cas registry numbers of substances are two of reagents here. from pyridines II and sulfonylpyridines III (R5 = alkyl, aryl). Thus, bromination of 2-methoxypyridine with Br2 in EtOAc in the presence of KOAc gave 86% 5-bromo-2-methoxypyridine, lithiation of which followed by condensation with 2-benzenesulfonylpyridine gave 95% 6-methoxy-3,2'-bipyridone. Hydrolysis of the latter compd. with aq, HCl gave 60% 5-(2'-pyridyl)-2-pyridone. .

Detail of "13472-85-0"

5-Bromo-2-methoxypyridine

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