155705-83-2

Upstream product

• 124-63-0 methanesulfonyl chloride 
• 155705-82-1 2-hydroxy-N-(4-morpholinyl)-2-phenyl-2-(3-pyridinyl)-acetamide 
• 15206-55-0 methyl 2-oxo-2-phenylacetate 
• 92200-20-9 α-[3]Pyridyl-mandelsaeure-methylester 
• 23826-59-7 2-hydroxy-2-phenyl-2-(3-pyridinyl)-acetic acid 
• 626-55-1 3-Bromopyridine 

Relevant academic research and scientific papers

Synthesis and Unexpected Reactions of 2-Hydroxy-3-pyridinylacetic Hydrazides. Formation of 2H-Pyrrolo[2,3-b]pyridin-2-ones

Treatment of 2-hydroxy-3-pyridinylacetic hydrazides under mild mesylation conditions provided 2H-pyrrolo[2,3-b]pyridin-2-ones as unexpected products. This rearrangement is believed to result from an intramolecular attack of the hydrazide on a reactive pyridinium species formed under the reaction conditions.