Hydrate;hydrochloride → HCID 69507248, compound

Participants

Reaction Steps

The process further comprises contacting the 2-iminobenzopyran with an aqueous acid to produce an optionally substituted coumarin (2-oxo-2H-chromene). For example, the hydrolysis of 3-cyano-2-imino-4-(5-methyl-pyridin-3-yl)-2H-pyrrolo[2,3-h]chromene using HCl/H2O produced 3-cyano-4-(5-methyl-pyridin-3-yl)-2-oxo-2H-pyrrolo[2,3-h]chromene (compound of Formula III).

Provenance & Evidence