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| CAS号 : | 1122-58-3 |
精确质量 : | 122.08400 |
| 分子式 : | C7H10N2 |
logP : | 1.14760 |
| 分子量 : | 122.16800 |
PSA : | 16.13000 |
4-二甲氨基吡啶 | |
4-Dimethylaminopyridine | |
1122-58-3 | |
C7H10N2 | |
122.16800 | |
16.13000 | |
1.14760 | |
122.08400 |
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n20/D 1.431
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白色至黄色结晶粉末
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110 °C
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211 °C
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83-86 °C(lit.)
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1.012 g/cm3
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76 g/L (25 ºC)
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0.431mmHg at 25°C
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Stable. Incompatible with acids, oxidizing agents.
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Store in dark
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GHS06, GHS08 | |
危险 | |
H302; H311; H315; H319; H335; H351 | |
P280; P301 + P312 + P330; P302 + P352 + P312; P304 + P340 + P312; P305 + P351 + P338; P337 + P313 | |
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US8400000
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3
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8
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S36/37/39-S45-S28A-S26-S28-S36/37-S53-S27-S22
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II
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UN 2811 6.1/PG 2
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2933399090
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T
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R24/25; R34
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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暂时无法加载合成路线，请稍后刷新重试 |
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<p>1.将4-羟基吡啶、二甲胺盐酸盐和六甲基磷酰三胺在220℃加热4h。生成的固化反应物用水漂洗,加盐酸在100℃水解1h。冷至室温,搅拌下加入氢氧化钠水溶液,然后用氯仿提取。提取液在用硫酸镁干燥后蒸除溶剂,剩余物用沸腾的己烷提取,热滤,浓缩,结晶,得4-二甲氨基吡啶。收率约55%。 <br>2.通过4-取代 (Cl, OPh, SO3H, OSiM<br>e3) 吡啶与二甲基胺共热来制备。</p> | |
<p>高效酰化催化剂。</p> |
