Divergent synthesis of pyrrolidone fused pyrimido[1,2-b]indazole through selective trapping of an enone intermediate by 1H-indazol-3-amine

Chem. Commun., 2024, 60,9781-9784 DOI: 10.1039/D4CC03483J, Communication Xi Shen, Zhi-Cheng Yu, You Zhou, Yan-Dong Wu, An-Xin Wu An oxidant-controlled divergent synthesis of a pyrrolidone fused pyrimido[1,2-b]indazole skeleton was developed through selective cyclization of an in situ generated enone intermediate and 1H-indazol-3-amine.