ChemicalBook--->CAS DataBase List--->20816-79-9

20816-79-9

20816-79-9 Structure

20816-79-9 Structure
IdentificationBack Directory
[Name]

1-Bromo-8-chloronaphthalene
[CAS]

20816-79-9
[Synonyms]

18-BCN
1-Bromo-8-chloronaphthalene
Naphthalene, 1-bromo-8-chloro-
1-Bromo-8-chloronaphthalene ISO 9001:2015 REACH
[Molecular Formula]

C10H6BrCl
[MDL Number]

MFCD17012231
[MOL File]

20816-79-9.mol
[Molecular Weight]

241.51
Questions And AnswerBack Directory
[Preparation]

Add a concentrated solution of 8-bromo-naphthyl-1-amine (4.48 g, 20 mmol) to a solution of HCl (30 mL) and H₂O (25 mL) at 0°C. Add a solution of NaNO₂ (3.45 g, 50 mmol) in H₂O (10 mL). Dissolve freshly prepared CuCl (13.86 g, 140 mmol) in a concentrated solution. Add HCl (15 mL) to the reaction mixture. Bring the reaction mixture to room temperature and stir at 65°C for 30 minutes. Add ethyl acetate (250 mL), separate the organic layer, wash with H₂O (3 × 100 mL) and brine, dry with Na₂SO₄, and evaporate under vacuum. Purify by chromatography on silica, eluting with CHCl₃, then to CHCl₃:MeOH (98:2), to give the oily second intermediate compound 1-Bromo-8-chloronaphthalene (2.95 g, 72%).
Chemical PropertiesBack Directory
[Melting point ]

87-88 °C
[Boiling point ]

150-160 °C(Press: 5-6 Torr)
[density ]

1.592±0.06 g/cm3(Predicted)
[storage temp. ]

Sealed in dry,Room Temperature
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H335-H332-H319-H315-H312
[Precautionary statements ]

P264-P270-P301+P312-P330-P501-P280-P302+P352-P312-P322-P363-P501-P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362-P261-P271-P304+P340-P312
Hazard InformationBack Directory
[Uses]

1-Bromo-8-chloronaphthalene is a useful reagent in the preparation of peri-substituted naphthalene series.
Spectrum DetailBack Directory
[Spectrum Detail]

1-Bromo-8-chloronaphthalene(20816-79-9)1HNMR
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