1,5-Diaminonaphthalene
Appearance
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Names | |
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Preferred IUPAC name
Naphthalene-1,5-diamine | |
Other names
Alphamin, 1,5-DAN
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.017.108 |
EC Number |
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KEGG | |
PubChem CID
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RTECS number |
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UNII | |
UN number | 3077 |
CompTox Dashboard (EPA)
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Properties | |
C10H10N2 | |
Molar mass | 158.204 g·mol−1 |
Appearance | white solid |
Density | 1.4 |
Melting point | 185–187 °C (365–369 °F; 458–460 K) |
Structure[1] | |
monoclinic | |
P21/c | |
a = 5.1790, b = 11.008, c = 21.238 α = 90°, β = 90.68°, γ = 90°[2]
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Lattice volume (V)
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1210.7 |
Formula units (Z)
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6 |
Hazards | |
GHS labelling: | |
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Warning | |
H351, H410 | |
P201, P202, P273, P281, P308+P313, P391, P405, P501 | |
Flash point | 226 °C (439 °F; 499 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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1,5-Diaminonaphthalene is an organic compound with the formula C10H6(NH2)2. It is one of several diaminonaphthalenes. It is a colorless solid that darkens in air due to oxidation.
Synthesis and reactions
[edit]It is prepared by reduction of 1,5-dinitronaphthalene, which in turn is obtained with the 1,8-isomers by nitration of 1-nitronaphthalene. It can also be prepared by treatment of 1,5-dihydroxynaphthalene with ammonium sulfite. It is a precursor to naphthalene-1,5-diisocyanate, a precursor to specialty polyurethanes.[3]
See also
[edit]References
[edit]- ^ Bernes, S.; Pastrana, M.R.; Sanchez, E.H.; Perez, R.G. (2004). "Crystal Structure". CCDC 232143: Experimental Crystal Structure Determination. Cambridge Crystallographic Data Centre. doi:10.5517/cc7skh1.
- ^ Bernès, Sylvain; Pastrana, Modesto Rodríguez; Sánchez, Enrique Huerta; Pérez, René Gutiérrez (12 December 2003). "1,5-Diaminonaphthalene". Acta Crystallographica Section E. 60 (1): o45–o47. doi:10.1107/S1600536803026643.
- ^ Booth, Gerald (2005). "Naphthalene Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. ISBN 978-3527306732.