337463-88-4 6-溴-2H-吡啶并[3,2-b][1,4]噁嗪-3(4H)-酮

中文名称: 6-溴-2H-吡啶并[3,2-b][1,4]噁嗪-3(4H)-酮
英文名称: 6-Bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one
CAS号

词条详情加载中…

名称和标识

中文名: 6-溴-2H-吡啶并[3,2-b][1,4]噁嗪-3(4H)-酮
英文名: 6-Bromo-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one
CAS号: 337463-88-4
分子式: C7H5BrN2O2
分子量: 229.03
中文别名: 6-溴-2H-吡啶并[3,2-B]-1,4-杂氧嗪-3(4H)-酮; 6-溴-4H-吡啶并[3,2-B][1,4]恶嗪-3-酮; 6-溴-2H-吡啶并[3,2-B][1,4]恶嗪-3(4H)-酮; 6-溴-3,4-二氢-2H-吡啶并[3,2-B][1,4]恶嗪; 6-溴-2H-吡啶[3,2B][1,4]并F嗪-3(4H)-酮; 6-溴-2H,3H,4H吡啶并[3,2-b][1,4]恶嗪-3-酮
英文别名: 6-bromo-2H,3H,4H-pyrido[3,2-b][1,4]oxazin-3-one; 6-Bromo-4H-pyrido[3,2-b][1,4]oxazin-3-one; 2H-Pyrido[3,2-b]-1,4-oxazin-3(4H)-one, 6-bromo-

物化属性

LogP: 1.83
PSA: 51.22 Å²
pKa: 10.18±0.20 (Predicted)
可旋转键数量: 0
外观: 白色至黄色固体
密度

安全信息

安全说明

危险性质：非危险化学品

生产及用途

用途与制备

化学合成。

医药; 农药; 染料; 香料

合成路线 1（1. 合成：337463-88-4）

产率：95% 合成条件：at 100℃; for 2 h; 实验步骤：化合物3.1（2.7g，8.85mmol）和铁粉（2.48g，44.3mmol）加入乙酸（40mL）中，将反应体系在100℃下搅拌2小时。冷却至室温，将反应溶液通过硅藻土过滤。向滤液中加入水（100mL）。用二氯甲烷（20mL×3）萃取，合并有机相，用无水硫酸钠干燥，浓缩，将残余物进行硅胶柱色谱（石油醚/乙酸乙酯= 3/1）化合物3.2的纯化（1.9g），产率：95％）它是淡黄色液体。 参考文献：

[1] Patent: CN108623615, 2018, A. Location in patent: Paragraph 0362; 0363; 0366 [2] Tetrahedron Letters, 2010, vol. 51, # 38, p. 5035 - 5037 [3] Synthetic Communications, 2013, vol. 43, # 24, p. 3315 - 3321 [4] Patent: EP2341052, 2011, A1. Location in patent: Page/Page column 35-36 [5] Patent: WO2017/199265, 2017, A1. Location in patent: Paragraph 000134 [6] Patent: US2006/223810, 2006, A1. Location in patent: Page/Page column 25 [7] Patent: WO2006/81264, 2006, A1. Location in patent: Page/Page column 25 [8] Patent: WO2006/81179, 2006, A1. Location in patent: Page/Page column 23 [9] Patent: WO2006/81289, 2006, A2. Location in patent: Page/Page column 22-23 [10] Patent: WO2006/81178, 2006, A2. Location in patent: Page/Page column 22-23 [11] Patent: WO2006/81182, 2006, A2. Location in patent: Page/Page column 23 [12] Patent: US2008/194547, 2008, A1. Location in patent: Page/Page column 11; 12 [13] Patent: WO2004/2490, 2004, A2. Location in patent: Page/Page column 40 [14] Patent: WO2004/2992, 2004, A1. Location in patent: Page 55; 56 [15] Patent: WO2004/14361, 2004, A1. Location in patent: Page/Page column 33 [16] Patent: WO2003/87098, 2003, A1. Location in patent: Page/Page column 100 [17] Patent: WO2006/2047, 2006, A2. Location in patent: Page/Page column 93; 97; 101 [18] Patent: WO2006/14580, 2006, A1. Location in patent: Page/Page column 44-46 [19] Patent: WO2006/17326, 2006, A1. Location in patent: Page/Page column 25 [20] Patent: WO2006/17468, 2006, A2. Location in patent: Page/Page column 24 [21] Patent: WO2006/20561, 2006, A2. Location in patent: Page/Page column 34; 37 [22] Patent: WO2007/16610, 2007, A2. Location in patent: Page/Page column 35 [23] ACS Medicinal Chemistry Letters, 2014, vol. 5, # 5, p. 609 - 614 [24] Patent: WO2016/123146, 2016, A1. Location in patent: Paragraph 0075; 0078 [25] Patent: WO2007/118130, 2007, A2. Location in patent: Page/Page column 30 [26] Patent: WO2013/3383, 2013, A1. Location in patent: Page/Page column 79

337463-88-4 6-溴-2H-吡啶并[3,2-b][1,4]噁嗪-3(4H)-酮

337463-88-4 6-溴-2H-吡啶并[3,2-b][1,4]噁嗪-3(4H)-酮

337463-88-4 6-溴-2H-吡啶并[3,2-b][1,4]噁嗪-3(4H)-酮

合成路线 1（1. 合成：337463-88-4）

合成路线 2（2. 合成：337463-88-4）