- One-step synthesis of diarylpyrazolo[3,4- b]pyridines from isoflavones
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A new concise, facile, and efficient method for the synthesis of 3-hydroxy-5,6-diphenylpyrazolo[3,4-b]pyridine derivatives has been described. The cyclocondensation of isoflavones with 3-amino-5-hydroxypyrazole in the presence of sodium methoxide gave fused heteroaromatic 3-hydroxy-5,6- diphenylpyrazolo[3,4-b]pyridines in moderate to good yields.
- Zhang, Zun-Ting,Liang, Yong,Ma, Yu-Qing,Xue, Dong,Yang, Jun-Ling
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experimental part
p. 600 - 603
(2010/09/05)
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