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Dibromination of 5‐pyrazolones and 5‐hydroxypyrazoles via dibromoisocyanuric acid
Author(s) -
Cheng KaungMin,
Wu Jin Bin,
Lin HuiChang,
Huang JiannJyh,
Huang YuYing,
Lin ShaoKai,
Lin TsungPing,
Wong Fung Fuh
Publication year - 2010
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.442
Subject(s) - pyrazolones , chemistry , organic chemistry
A safe and efficient method was developed for the dibromination of pyrazolones and 5‐hydroxypyrazoles by use of dibromoisocyanuric acid (DBI). The reaction gave the corresponding dibrominated pyrazolones in excellent yields (≥91%). J. Heterocyclic Chem., (2010).