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99-73-0 - 2,4'-Dibromoacetophenone, 98+% - alpha,4-Dibromoacetophenone - 4-Bromophenacyl bromide - A13687 - Alfa Aesar

A13687 2,4'-Dibromoacetophenone, 98+%

CAS-Nummer
99-73-0
Synonyme
alpha,4-Dibromoacetophenone
4-Bromophenacyl bromide

Größe Preis ($) Menge Verfügbarkeit
25g 59,20
100g 205,00
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2,4'-Dibromoacetophenone, 98+%

MDL
MFCD00000200
EINECS
202-783-6

Chemische Eigenschaften

Formel
C8H6Br2O
Molmasse
277.95
Schmelzpunkt
108-112°
Löslichkeit
Soluble in dimethyl sulfoxide (5 mg/ml), methanol (20 mg/ml), toluene and ethanol. Insoluble in water.

Anwendungen

2,4'-Dibromoacetophenone is used as a reagent for analysis of fatty acids by HPLC as 4-bromophenacyl esters, for use in the protection of phenols and carboxylic acids. It undergoes condensation reactions with aldehydes in the presence of SnCl2 or SmI3 to afford α,β-unsaturated ketones. It is also useful in the esterification of carboxylic acids.

Bemerkungen

Keep container tightly sealed. Store in refrigerated condition. Incompatible with bases and oxidizing agents.

Literaturverweise

K. T. Potts.; D. R. Choudhury.; T. R. Westby. Bridgehead nitrogen systems. X. Cycloadditions with thiazolium N-ylides. J. Org. Chem. 1976, 41 (2), 187-191.

Derrick L. J. Clive.; Pierre L. Beaulieu. Dehalogenation of .alpha.-chloro and .alpha.-bromo ketones. Use of sodium O,O-diethyl phosphorotelluroate. J. Org. Chem. 1982, 47 (6), 1124-1126.

Reagent for analysis of fatty acids by HPLC as 4-bromophenacyl esters: Anal. Chem., 47, 1797, (1975).

For use in the protection of phenols and carboxylic acids, see: Tetrahedron Lett., 343 (1970).

The O-methyl oxime has been used to N-alkylate pyridines. The products can be cyclized with triethylamine to give imidazo[1,2-a]pyridines in high yield: Synthesis, 927 (1996).

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

Sicherheitshinweise: P280-P305+P351+P338-P309-P310a

Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or if you feel unwell:

Weitere Referenzen

Merck
14,1427
Beilstein
607604
Gefahrenklasse
8
Verpackungsgruppe
II
Harmonized Tariff Code
2914.79
TSCA
Yes
RTECS
AM6950000

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