Chemistry:Pyrazolidine
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| Names | |||
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| Preferred IUPAC name
Pyrazolidine[1] | |||
| Other names
1,2-Diazolidine
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| Identifiers | |||
3D model (JSmol)
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| 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) | ||
Refractive index (nD)
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1.477[2] | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
 verify (what is   ?)
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Tracking categories (test):
Pyrazolidine is a heterocyclic compound. It is a liquid that is stable in air, but it is hygroscopic.[2]
Preparation
Pyrazolidine can be produced by cyclization of 1,3-dichloropropane or 1,3-dibromopropane with hydrazine:[2]
- [math]\displaystyle{ \mathrm{Cl{-}(CH_2)_3{-}Cl\ +\ N_2H_4\ \xrightarrow {\Delta T}\ C_3H_8N_2\ +\ 2 HCl} }[/math]
- [math]\displaystyle{ \mathrm{Br{-}(CH_2)_3{-}Br\ +\ N_2H_4\ \xrightarrow {\Delta T}\ C_3H_8N_2\ +\ 2 HBr} }[/math]
See also
References
- ↑ International Union of Pure and Applied Chemistry (2014). Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013. The Royal Society of Chemistry. pp. 142. doi:10.1039/9781849733069. ISBN 978-0-85404-182-4.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 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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