Expedient and Diastereoselective Synthesis of Substituted 6,6a-Dihydroisoindolo[2,1-a]quinolin-11(5H)-ones
2016
Further synthetic utility of 3-substituted N -arylisoindolinones obtained from N -aryl-3-hydroxyisoindolinones and alkyl aryl ketones under Lewis acid mediated anhydrous conditions is reported. Herein, substituted 6,6a-dihydroisoindolo[2,1- a ]quinolin-11(5 H )-ones were synthesized from 3-substituted isoindolinones following a NaBH 4 ketone reduction and carbocation-mediated intramolecular electrophilic aromatic substitution using BF 3 ·OEt 2 . Representative final products were unambiguously characterized by single-crystal X-ray crystallography.
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