| 英文名 | Benzyl chloride |
|---|---|
| 类型 | 芳香族化合物 |
| CAS号 | 100-44-7 |
| 物理性质 | M 126.6, m 139℃, b 63℃/8mm, d420 1.100, d420 1.538. |
| 提纯方法 | Dry it with MgSO4 or CaSO4, or reflux it with fresh Ca turnings, then fractionally distil it under reduced pressure, collecting the middle fraction and storing it over CaH2 or P2O5. It has also been purified by passage through a column of alumina. Alternatively it is dried over MgSO4 and distilled in a vacuum. The middle fraction is degassed by several freeze-thaw cycles and then fractionated in an 'isolated fractionating column' (which has been evacuated and sealed off at ~10 -6 mm) over a steam bath. The middle fraction is retained. The final samples are distilled in a vacuum from this sample and again retaining the middle fraction. The purity is >99.9% (no other peaks are visible by GLC, and the NMR spectrum is consistent with the structure. [Mohammed & Kosower J Am Chem Soc 93 1709 1971, Beilstein 5 IV 809.] IRRITANT and strongly LACHRYMATORY. |
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