Folding-Promoted TBACl-Mediated Chemo- and Regioselective Demethylations of Methoxybenzene-Based Macrocyclic Pentamers
摘要:
Tetrabutylammonium chloride (TBACI) salt alone has not been shown previously to be capable of removing methoxy groups. It is demonstrated here that the use of TBACI achieves efficient folding-promoted chemo- and regioselective demethylations, eliminating up to two out of five methyl groups situated in similar macrocyclic chemical microenvironments.