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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 5
BKCSDE 32(5)
May 20, 2011 

Selective Monobromination of 1,3-Diones with N-Bromosaccharin/Mg(ClO4)2 System in Solution and under Solvent-Free Conditions
Heshmatollah Alinezhad, * Mahmood Tajbakhsh, Shahram Shahriari Tehrani
Bromination, 1,3-Diones, N-Bromosaccharin, Lewis acid, Solvent free conditions
N-Bromosaccharin/Mg(ClO4)2 is an effective and regioselective system for α-monobromination of 1,3- dicarbonyl compounds. A wide variety of β-keto esters and 1,3-diketones in reaction with this system afforded a regioselectively α-monobrominated products. The bromination reaction can be conducted at 0-5 oC either in solution or under solvent-free conditions.
1543 - 1546
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