Diprotonative stabilization of ring-opened carbocationic intermediates: conversion of tetrahydroisoquinoline to triarylmethanes.
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DOI: 10.1039/d0cc01969k
Abstract: Superacid-promoted conversion of tetrahydroisoquinolines to triarylmethanes via tandem reactions of C-N bond scission, Friedel-Crafts alkylation, C-O bond scission, and electrophilic aromatic amidation was developed. Dication formation was important for stabilizing the ring-opened carbocationic intermediate, which… read more here.
Keywords: stabilization ring; diprotonative stabilization; ring opened; carbocationic intermediates ... See more keywords