Access to 6-hydroxy indolizines and related imidazo[1,5- a]pyridines through the SN2 substitution/condensation/tautomerization cascade process

RSC Adv. 2021 Jul 23;11(41):25624-25627. doi: 10.1039/d1ra04425g. eCollection 2021 Jul 19.

Abstract

A simple and efficient cascade reaction was developed for the construction of hydroxy substituted indolizines from pyrrole-2-carbaldehydes and commercially available 4-halogenated acetoacetic esters. Their optical properties were also evaluated.