1,2-二碘乙烷
1,2-二碘乙烷是一种有机化合物,化学式为C2H4I2。
1,2-二碘乙烷 | |||
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IUPAC名 1,2-diiodoethane | |||
别名 | ethylene iodide | ||
识别 | |||
CAS号 | 624-73-7 | ||
PubChem | 12224 | ||
ChemSpider | 11723 | ||
SMILES |
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InChI |
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InChIKey | GBBZLMLLFVFKJM-UHFFFAOYAR | ||
性质 | |||
化学式 | C2H4I2 | ||
摩尔质量 | 281.86 g·mol−1 | ||
密度 | 2.132 g·cm−3(10 °C)[1] | ||
熔点 | 82 °C(355 K)[1] | ||
沸点 | 200 °C(473 K)[2] | ||
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
制备及性质
- C2H4 + I2 ⇌ C2H4I2
1,2-二氯乙烷和碘化钠在四丁基碘化铵的催化下于DMF中加热,发生卤素交换反应,得到1,2-二碘乙烷。[4]乙二醇和氢碘酸加热反应,也可得到该化合物。[5]
1,2-二碘乙烷在有机合成中主要用于二碘化钐和二碘化镱的制备:[6]
- Sm + ICH2CH2I → SmI2 + H2C=CH2 (惰性气氛、THF作为溶剂)
参考文献
- Jaeger, F. M. Crystallography of the Aliphatic Compounds. Zeitschrift fuer Kristallographie und Mineralogie, 1909. 45: 539-547. ISSN: 0372-9176.
- Gordon G. Cash, Suzanne Hartigan, Jay Tunkel. . Toxicological & Environmental Chemistry. 2008-11, 90 (6): 1073–1089 [2020-05-29]. ISSN 0277-2248. doi:10.1080/02772240701862116 (英语).
- Cutherbertson, G.R.; Kistiakowsky, G.B. . J. Chem. Phys. 1935, 3 (10): 631–634. Bibcode:1935JChPh...3..631C. doi:10.1063/1.1749566.
- Herlekar, Omkar Pravin; Durve, Ketakee Sanjay; Chaudhari, Nikhil Vitthal. Process for terminal dihaloalkane. 2012. IN 2012MU01684 A.
- Doya, Masaharu; Hoshino, Yuki. Preparation of iodine compounds by alcohol iodination using hydriodic acid while removing generated water. 2010. JP 2010159223 A.
- Girard, P.; Namy, J. L.; Kagan, H. B. . Journal of the American Chemical Society. 1980, 102 (8): 2693–2698. doi:10.1021/ja00528a029.
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