2,3-diaminonaphthalene synthesis
- Product Name: 2,3-diaminonaphthalene
- CAS Number:771-97-1
- Molecular formula:C10H10N2
- Molecular Weight:158.2
2050-75-1
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771-97-1
277 suppliers
$7.00/100mg
Yield:771-97-1 75%
Reaction Conditions:
with hydrogenchloride;ammonia;ammonium chloride in ethanol for 6 h;Reflux;
Steps:
Synthesis of 2,3-Diaminonaphthalene (2)
Compound 1 (2 gm) was dissolved in absolute ethanol. Ammonium chloride (1.5 gm),dil. HCl (in catalytic amount) and excess of strong ammonium solution were added to it and reuxed for 6 h on water bath till appearing of permanent dark greenish colour. After completion of reaction, solution was cooled and kept in deep freezer for overnight. Greenish crystals were fltered, dried and recrystallized with methanol. Dark greenish crystals;Yield 75%; Rf 0.89, Rf 0.82; mp 150 °C; IR (νmax,KBr, cm-1): 758, 854, 1473 (aromatic =C-N), 1500(aromatic C=C), 1681 (N-H), 3049 (N-H); 1H-NMR(CDCl3 500 MHz): 7.45-7.46 (dd, J=3.5-4 Hz, 2H,Ar-H), 7.12-7.14 (dd, J=3-3.5 Hz, 2H, Ar-H), 7.09 (s,Ar-H, 2H), 7.05 (s, Ar-NH2,4H).
References:
Kumar, Shiv;Kumar, Nitin;Drabu, Sushma [Oriental Journal of Chemistry,2017,vol. 33,# 2,p. 821 - 828]
92-44-4
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$9.00/1g
771-97-1
277 suppliers
$7.00/100mg
5417-63-0
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$10.00/100mg
771-97-1
277 suppliers
$7.00/100mg
91-59-8
207 suppliers
$54.00/100mg
771-97-1
277 suppliers
$7.00/100mg
