TY - JOUR ID - pittir20449 UR - http://d-scholarship-dev.library.pitt.edu/20449/ IS - 7 A1 - Curran, DP A1 - Fairweather, N Y1 - 2003/04/04/ N2 - Reduction of allyl 2-iodobenzyl malonates with triphenyltin hydrides generates aryl radicals that partition between 6-exo cyclization, 7-endo cyclization, and 1,5-hydrogen atom transfer. Rate constants for all of these processes are high (> 108 M-1 s-1), and the rates are only marginally reduced (<33%) by the introduction of methyl group ortho to the reacting radical. JF - Journal of Organic Chemistry VL - 68 SN - 0022-3263 TI - Quantitating the effect of an ortho substituent on cyclization and intramolecular hydrogen-transfer reactions of aryl radicals SP - 2972 AV - public EP - 2974 ER -