| Identification | More | [Name]
1,8-Dinitronaphthalene | [CAS]
602-38-0 | [Synonyms]
1,8-DINITRONAPHTHALENE
LABOTEST-BB LT00436938
1,8-dinitro-naphthalen
1,8-Dinitronaphthalene, contains variable amounts of water, 97%
Naphthalene, 1,8-dinitro- | [EINECS(EC#)]
210-016-1 | [Molecular Formula]
C10H6N2O4 | [MDL Number]
MFCD00003918 | [Molecular Weight]
218.17 | [MOL File]
602-38-0.mol |
| Safety Data | Back Directory | [Hazard Codes ]
F,Xi | [Risk Statements ]
11-36/37/38 | [Safety Statements ]
16-26-36 | [RIDADR ]
2811 | [WGK Germany ]
3 | [RTECS ]
QJ4552000 | [HazardClass ]
6.1(b) | [PackingGroup ]
III | [Safety Profile]
Suspected carcinogen.
Mutation data reported. When heated to
decomposition it emits toxic vapors of NOx |
| Hazard Information | Back Directory | [Chemical Properties]
Light yellow to Yellow to Orange powder to crystal. | [Uses]
1,8-Dinitronaphthalene (cas# 602-38-0) is a compound useful in organic synthesis. | [Application]
The reduction of 1,8-dinitronaphthalene to diaminonaphthalene is an important organic synthesis unit reaction and an important way to prepare diaminonaphthalene, and its product diaminonaphthalene is an important pigment intermediate. Diaminonaphthalene mainly includes 1,5-diaminonaphthalene and 1,8-diaminonaphthalene. | [Definition]
ChEBI: 1,8-dinitronaphthalene is a dinitronaphthalene carrying nitro groups at positions 1 and 8. | [Preparation]
Separation of dinitronaphthalene: Crude mixtures of dinitronaphthalene (5 g, from Table-3 run 8) was placed together with 50 mL acetone in a 100 mL flask, stirred and heated to reflux. The suspension was refluxing for 2 h and then cooled to 30 oC by stirred and filtered quickly. The precipitate was recrystallized by acetone and 1,5-dinitronaphthalene as light yellow crystals (1.725 g) was got. Then the filter liquor was concentrated to one-thirds of original volume, filtered, the precipitate was recrystallized by toluene and 1,8- dinitronaphthalene as light yellow crystals (1.987 g) was got.
1, 5-Dinitronaphthalene: m.p. 215-216 oC, 1H NMR (400 MHz, CDCl3): δ = 7.84 (t, 2H), 8.33 (d, 2H), 8.81 (d, 2H).
1, 8-Dinitronaphthalene: m.p. 172-173 oC, 1H NMR (400 MHz, CDCl3): δ = 7.98 (t, 2H), 8.51 (dd, 4H).
Zeolite-Assisted Regioselective Synthesis of Dinitronaphthalene | [General Description]
1,8-dinitronaphthalene appears as yellow crystals. (NTP, 1992) | [Air & Water Reactions]
Insoluble in water. | [Reactivity Profile]
1,8-Dinitronaphthalene(602-38-0) is sensitive to heat and shock. | [Fire Hazard]
Flash point data for 1,8-Dinitronaphthalene is not available, however 1,8-Dinitronaphthalene is probably combustible. | [Purification Methods]
Crystallise it from *benzene. [Beilstein 5 H 559, 5 II 455, 5 III 1608.] |
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