Journal
ORGANIC LETTERS
Volume 11, Issue 23, Pages 5490-5493Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol902334x
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Reaction of 4-bromo-NH-1,2,3-triazoles 2 with alkyl halides in the presence of K2CO3 in DMF produced the corresponding 2-substituted 4-bromo-1,2,3-triazoles 5 in a regioselective process. Subsequent Suzuki cross-coupling reaction of these bromides provided an efficient synthesis of 2,4,5-trisubstituted triazoles 3. In addition, reduction of the bromotriazoles by hydrogenation furnished an efficient synthesis of 2,4-disubstituted triazoles
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