In(OTf)<sub>3</sub>-Catalyzed One-Pot Tandem Mannich and Conia-Ene Cyclization Reaction of <i>N</i>-Propargyl Amido Alcohols with 1,3-Dicarbonyl Compounds: An Approach To Construct Tetrahydro-1<i>H</i>-pyrrolo[2,1-<i>a</i>]isoindolone-1,1-dicarboxylate and Its Application
作者:Archana Kumari Sahu、Ramanjaneyulu Unnava、Sudip Shit、Anil K. Saikia
DOI:10.1021/acs.joc.9b02686
日期:2020.2.21
A one-pottandemreaction has been developed for the synthesis of substituted tetrahydropyrroloisoindolone via Mannich reaction of N-propargyl amido alcohols with 1,3-dicarbonyl compounds followed by Conia-ene cyclization reaction in moderate to good yields catalyzed by indium(III)triflate [In(OTf)3]. The reaction is highly regioselective with an exo-cyclic double bond in the pyrrolidinering. The