Diastereoselectivity of polar and radical couplings in electrophilic substitutions of rigid 2-lithio-N-methylpyrrolidines
作者:Robert E. Gawley、Daniel B. Eddings、Marcelina Santiago、Davic A. Vicic
DOI:10.1039/b608013h
日期:——
N-Methyl trans-fused perhydroisoindolines substituted with a tributylstannyl group in the 2-position have been prepared and used as precursors of the corresponding α-aminoorganolithiums. The steric course of the reactions of these and other conformationally rigid organolithiums with various electrophiles is summarized and compared with the steric course of the unsubstituted analogs. A mechanistic rationale for the steric course of electrophilic substitutions of these organolithiums is discussed. Pathways involving both polar electrophilic substitutions and radical couplings were observed with different electrophiles.