4,4-Dibromo-3-methylpyrazol-5-one: New a
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Sabir H. Mashraqui; Chandrashekar D. Mudaliar; Harini Hariharasubrahmanian
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Article
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1997
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Elsevier Science
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French
β 210 KB
Dibromopyrazolone 1, a stable, crystalline solid effects para selective monobromination of phenols and aniline substrates under mild conditions. Selective oxidation of sulfides to sulfoxides can also be accomplished by using 1 in high yields.