您好，欢迎来到魔法化学网！
| CAS号 : | 5469-26-1 |
精确质量 : | 177.99900 |
| 分子式 : | C6H11BrO |
logP : | 1.99650 |
| 分子量 : | 179.05500 |
PSA : | 17.07000 |
1-溴频哪酮 | |
1-Bromopinacolone | |
5469-26-1 | |
C6H11BrO | |
179.05500 | |
17.07000 | |
1.99650 | |
177.99900 |
|
n20/D 1.466(lit.)
|
|
|
透明至黄色液体
|
|
|
195 °F
|
|
|
188-194 °C(lit.)
|
|
|
−10 °C(lit.)
|
|
|
1.331 g/mL at 25 °C(lit.)
|
|
|
-20ºC
|
|
EL7010000
|
|
|
3
|
|
|
3.2
|
|
|
S26-S37/39
|
|
|
III
|
|
|
1224
|
|
|
Xi
|
|
|
R36/37/38
|
|
|
2914700090
|
品名, 成分含量, 用途, 丙酮报明包装 |
|
2914700090 其他酮及醌的卤化、磺化衍生物（包括硝化和亚硝化衍生物）. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:5.5% 普通关税:30.0% |
|
HS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0% |
|
2914700090. Halogenated, sulphonated, nitrated or nitrosated derivatives of Ketones and quinones, whether or not with other oxygen function. General tariff: |
|
|
在反应瓶中先后加入750mL无水乙醚和60g频哪酮,瓶外用冰水冷却,搅拌。滴加96g溴,开始时先滴加几滴溴反应至无色,然后连续滴加,温度控制在0℃,约2h滴加完毕。再继续反应0.5h,用300mL冰水洗涤,静置,除去水层。乙醚反应液用水泵减压除去溶剂后再进行真空蒸馏,收集70~72℃(1.33kPa)馏分,产品外观为无色透明液体,放置颜色逐渐加深至棕色,产量91g,收率84.7%。 | |
有机合成中间体 |
