化学科研者一站式服务平台


  • 二溴戊烷

    1,5-Dibromopentane

化合物简介

1,5-Dibromopentane is used as an alkylating agent in organic synthesis. 1,5-Dibromopentane is also used as a reagent to synthesize benzo[b]xanthone derivatives, compounds that have potential anticancer activity.

基本信息

CAS:111-24-0
中文别名:五亚甲基二溴;戊撑二溴;二溴化五次甲基;1,5-二溴正戊烷;
英文别名:Pentane, 1,5-dibromo-;Pentamethylene bromide;1 5-DIBROMOPENTANE;1,5-DIBROMPENTAN;1,5-DIBROMOPENTANE FOR SYNTHESIS;PENTAMETHYLENE DIBROMIDE;1,5-DIBROMO-PENTANE;1,5 DIBROMPENTANE;1,5-dibromo-pentane;Pentamethylene dibromide;Pentane,1,5-dibromo;1,5-Dibromopentane ;1,5-dibromo-n-pentane;1,5-DIBROMPENTANE;Pentamethylene Bromide;1,5-Dibromopentan;EINECS 203-849-7;
分子式:C5H10Br2
分子量:229.941
精确质量:227.915
Psa:0.0
Logp:2.9465

编号系统

MDL号:MFCD00000268
PubChem号:24847812
EINECS号:203-849-7
BRN号:1209245
RTECS号:SA0320000

物化性质

外观与性状:透明无色至黄色-褐色液体
密度:1.688g/mLat 25°C(lit.)
沸点:110°C15mm Hg(lit.)
熔点:−34°C(lit.)
闪点:>230°F
折射率:n20/D 1.512(lit.)
水溶解性:insoluble
稳定性:Stable at room temperature in closed containers under normal storage and handling conditions.
储存条件:Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
蒸汽密度:8 (vs air)
蒸汽压:0.136mmHg at 25°C

安全信息

RTECS号:SA0320000
安全说明:S23-S26-S36-S37/39
WGK Germany:3
危险类别码:R22; R36/38
海关编码:29033036
危险品标志:Xn

生产方法及用途

生产方法
由四氢吡喃开环溴化而得。在500ml烧瓶中,依次加入250g48%氢溴酸;75g浓硫酸; 21.5g重蒸过的四氢吡喃(86.5-87.5℃馏分)装上回流冷凝器,将棕色混合物加热温和地回流3h。冷至室温后,分出下层的二溴化物,用饱和碳酸钠溶液和水各洗一次。以无水氯化钙干燥。减压蒸馏,收集104-106℃(2.53kPa)馏分即为成品,产量为46-47g,产率为80-82%。 有机合成中间体。
用途
有机合成中间体。

合成路线

上游原料

下游产品

图谱

Predict 1H proton NMR


13C NMR : Predict


1H NMR : Predict


13C NMR : in CDCl3


Mass spectrum (electron ionization)


Mass


Raman : 4880 A,200 M,liquid


IR : liquid film


IR : CCl4 solution


加载中...