Pyrazolidine

Pyrazolidine is a heterocyclic compound. It is a liquid that is stable in air, but it is hygroscopic.[2]

Pyrazolidine
Structural formula of pyrazolidine
Ball-and-stick model of the pyrazolidine molecule
Names
Preferred IUPAC name
Pyrazolidine[1]
Other names
1,2-Diazolidine
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
UNII
  • InChI=1S/C3H8N2/c1-2-4-5-3-1/h4-5H,1-3H2 ☒N
    Key: USPWKWBDZOARPV-UHFFFAOYSA-N ☒N
  • InChI=1/C3H8N2/c1-2-4-5-3-1/h4-5H,1-3H2
    Key: USPWKWBDZOARPV-UHFFFAOYAM
  • C1CNNC1
Properties
C3H8N2
Molar mass 72.10902
Density 1.00 g/cm3 (20 °C)[2]
Melting point 10 to 12[2] °C (50 to 54 °F; 283 to 285 K)
Boiling point 138[2] °C (280 °F; 411 K)
1.477[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Preparation

Pyrazolidine can be produced by cyclization of 1,3-dichloropropane or 1,3-dibromopropane with hydrazine:[2]

See also

References
  1. International Union of Pure and Applied Chemistry (2014). Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013. The Royal Society of Chemistry. p. 142. doi:10.1039/9781849733069. ISBN 978-0-85404-182-4.
  2. Buhle, Emmett L.; Moore, Alexander M.; Wiselogle, F. Y. (1943). "The Configuration of Tervalent Nitrogen. A Bicyclic Hydrazine Derivative1". Journal of the American Chemical Society. American Chemical Society (ACS). 65 (1): 29–32. doi:10.1021/ja01241a009. ISSN 0002-7863.
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