期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 74, 期 16, 页码 6331-6334出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo9006656
关键词
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Indazoles are unselectively protected under strongly basic conditions to give a mixture at N-1 and N-2. Under mildly acidic conditions, regioselective protection at N-2 takes place. Thermodynamic conditions lead to regioselective protection at N-1. This trend applies to various substituted indazoles. Protected 5-bromoindazoles participate in Buchwald reactions with a range of amines to generate novel derivative.
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