Palladium-Catalyzed C3-Arylations of 1H- and 2H-Pyrazolo[4,3-b]pyridines on Water
2018
Faarasse, Soukaina | El Kazzouli, Saïd | Suzenet, Franck | Guillaumet, Gérald
Direct C3-arylation of 1H-pyrazolo[4,3-b]pyridines and direct C3-arylation of 2H-pyrazolo[4,3-b]pyridines in water has been developed. A new protocol for a sequential C3-arylation procedure on a mixture of 1H- and 2H-pyrazolo[4,3-b]pyridines followed by in situ PMB cleavage has also been achieved. This procedure led to unprotected (NH) C3-arylated 1H-pyrazolo[4,3-b]pyridines in good yields.
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