1206640-82-5

基本信息
1-二氟甲基-吡咯-4-硼酸频哪醇酯
1-(二氟甲基)吡唑-4-硼酸频哪醇酯
1-(二氟甲基)-1H-吡唑-4-硼酸频那醇酯
1-(二氟甲基)-4-硼酸频哪醇酯基-1H-吡唑
1-(二氟甲基)-4-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-1H-吡唑
1-(二氟甲基)-4-(4,4,5,5-四甲基-1,3,2-二氧杂环己硼烷-2-基)-1H-吡唑
1-(二氟甲基)-4-(4,4,5,5-四甲基-1,3,2-二氧硼杂环戊烷-2-基)-1H-吡唑
1-(DIFLUOROMETHYL)-4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-2H-PYRAZOLE
1-(Difluoromethyl)pyrazole-4-boronic acid pinacol ester
(1-(DIFLUOROMETHYL)-1H-PYRAZOL-4-YL)BORONIC ACID PINACOL ESTER
1-(difluoroMethyl)-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-y
1-(difluoromethyl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1-(difluoromethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole
1-(difluoromethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1H-Pyrazole, 1-(difluoromethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-
1-(Difluoromethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole 97%
物理化学性质
制备方法

269410-08-4

1895-39-2

1206640-82-5
步骤1:1-(二氟甲基)-4-(4,4,5,5-四甲基-1,3,2-二氧杂硼杂环戊烷-2-基)-1H-吡唑的合成 向100mL圆底烧瓶中加入4-吡唑硼酸频哪醇酯(1.0g,5.15mmol)、18-冠-6(0.27g,1.03mmol)和无水乙腈(25mL)。搅拌混合物至形成无色均相溶液后,加入二氟氯乙酸钠(0.94g,6.18mmol)。将反应混合物加热至回流并保持18小时。反应完成后,将混合物冷却至室温。通过硅藻土垫过滤除去不溶性固体,并用乙酸乙酯(3×20mL)洗涤滤饼。合并滤液和洗涤液,通过疏水性玻璃料过滤后,减压浓缩得到浅黄色油状粗产物。粗产物经快速硅胶柱色谱纯化(梯度洗脱,己烷至33%乙酸乙酯/异己烷),得到1-(二氟甲基)-4-硼酸频哪醇酯基-1H-吡唑,为无色固体(1.06g,收率84%)。质谱(电喷雾正离子模式)显示分子离子峰(M+H)+与目标化合物一致。
参考文献:
[1] Patent: WO2014/159218, 2014, A1. Location in patent: Paragraph 00218
[2] Patent: WO2014/159224, 2014, A1. Location in patent: Paragraph 00256
[3] Patent: US2017/8889, 2017, A1. Location in patent: Paragraph 0324; 0325
[4] Patent: US2010/197651, 2010, A1. Location in patent: Page/Page column 84
[5] Patent: WO2014/1377, 2014, A1. Location in patent: Page/Page column 119; 120
报价日期 | 产品编号 | 产品名称 | CAS号 | 包装 | 价格 |
2025/05/22 | XW02120664082505 | 1-(二氟甲基)-4-(4,4,5,5-四甲基-1,3,2-二氧硼杂环戊烷-2-基)-1H-吡唑 | 1206640-82-5 | 25G | 1116元 |
2025/05/22 | XW02120664082504 | 1-(二氟甲基)-4-(4,4,5,5-四甲基-1,3,2-二氧硼杂环戊烷-2-基)-1H-吡唑 | 1206640-82-5 | 10G | 609元 |
2025/05/22 | XW02120664082503 | 1-(二氟甲基)-4-(4,4,5,5-四甲基-1,3,2-二氧硼杂环戊烷-2-基)-1H-吡唑 | 1206640-82-5 | 5G | 305元 |