ChemicalBook CAS DataBase List 2-Bromophenanthrene

2-Bromophenanthrene synthesis

9synthesis methods

Product Name:2-Bromophenanthrene
CAS Number:62162-97-4
Molecular formula:C14H9Br
Molecular Weight:257.13

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Yield:62162-97-4 67%

Reaction Conditions:

with 2,3-dicyano-5,6-dichloro-p-benzoquinone in 1,4-dioxane at 100; for 24 h;

Steps:

16
5.1g (20 mmol) 27 is dissolved in 100ml dioxane and 14.9g (65 mmol) DDQ (4,5-dichloro- S.θ-dioxo-i^-cyclohexadiene-i ^-dicarbonitrile) is added. A black suspension is formed and the reaction mixture is heated up to T= 100°C and stirred for 24 hours. The reaction mixture is cooled down to room temperature and filtrated. Product 28 is isolated by evaporation and purified by column chromatography (silica gel, heptane as eluant). Product 28 is isolated in 67% yield as colorless crystals. M.p.28: 84-88°C

References:

CIBA SPECIALTY CHEMICALS HOLDING INC. WO2006/131466, 2006, A1 Location in patent:Page/Page column 58-59

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