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γ-丁内酯

γ-丁内酯
英文名 gamma-Butyrolactone
缩写 GBL
识别
CAS号 96-48-0  checkY
PubChem 7302
ChemSpider 7029
SMILES
 
  • O=C1OCCC1
InChI
 
  • 1/C4H6O2/c5-4-2-1-3-6-4/h1-3H2
InChIKey YEJRWHAVMIAJKC-UHFFFAOYAC
ChEBI 42639
RTECS LU3500000
DrugBank DB04699
KEGG C01770
IUPHAR配体 5462
性质
化学式 C
4
H
6
O
2
摩尔质量 86.089 g·mol⁻¹
外观 无色油状液体
密度 1.1286 g/mL (15 °C)
熔点 -43.53 °C, 230 K, -46 °F
沸点 204 °C, 477 K, 399 °F
溶解性 互溶
危险性
警示术语 R:R22R36
安全术语 S:S26S36
闪点 98 °C (闭杯)
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

γ-丁内酯(英语:gamma-Butyrolactone,简称GBL)是一种易潮解的无色油状液体,有较弱的特征气味并且能溶于水。γ-丁内酯是化学中的一个常见溶剂和反应试剂,它也被用作一种芳香物、去污剂、氰基丙烯酸酯去除剂、除漆剂以及一些液体铝电解电容器的溶剂。

锂电池的制造上,γ-丁内酯被当做锂离子的特殊非水溶液。

制备

γ-丁内酯可以由1,4-丁二醇的催化脱氢制备而成,反应温度为180–300 °C,同时需要铜催化剂。此方法的产率约为百分之九十五。[1]

Dehydrocyclization of 1,4-butanediol to form γ-butyrolactone in the presence of a copper catalyst

参考资料

  1. ^ Wolfgang Schwarz; Jürgen Schossig; Roland Rossbacher; Rolf Pinkos; Hartmut Höke, Butyrolactone, Ullmann's Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH, 2005, doi:10.1002/14356007.a04_495.pub2 
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γ-丁内酯
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