溴代环戊烷

溴代环戊烷

Cyclopentyl bromide

137-43-9

C5H9Br

149.02900

0.00000

2.32390

147.98900

n20/D 1.4881(lit.)

无色至黄色液体

95 °F

137-139 °C(lit.)

137-139ºC

1.39 g/mL at 25 °C(lit.)

9.73mmHg at 25°C

Stable. Flammable. Incompatible with strong oxidizing agents, strong bases.

Store at R.T.

3

29035990

3

S23-S24/25-S16

III

UN 1993 3/PG 3

R10

2933990090

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%

<p>由环戊醇溴化而得: 将环戊醇与氢溴酸混合后加热到170℃左右回流6~8h,然后用水蒸气蒸馏,油层用5%碳酸钠洗涤,再经干燥、过滤、分馏,收集136~139℃馏分即为成品。另一种方法是由环醇与三溴化磷反应。将环戊醇冷至0℃,滴加新蒸过的三溴化磷,在0~5℃加完,搅拌2h,室温下放置过夜。加水后分层,取油层水蒸气蒸馏。馏出液分层,油层用10%碳酸氢钠溶液洗涤,用无水氯化钙干燥,过滤,滤液蒸馏,收集134~141℃馏分即得溴环戊烷。</p>

<p>用作有机合成中间体，用于药品环戊甲噻嗪的生产。</p>