Add time:07/11/2019         Source:sciencedirect.com

A one-pot multigram synthesis of 3-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridine starting from 2-fluoropyridine using directed ortho metallation (DoM) technique is described. The compound contains an anionically activatable trifluoromethyl group and is a versatile building block for the microwave assisted synthesis of 3-substituted 1H-pyrazolo[3,4-b]pyridines.

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