(CO. 13a, 14a); llb (CO, 13b, 14b); llc (CO, 14c, 15c, 16c); 1 Id (CO, l4d). Kelative reactivities with respect to mercurial 12 (benzene, 80" C) were 3-CF3PhCHO (0.08), PhCHO (0.3), n- BuCH= CHz (0.3), I-MeOPhCHO (O. YI, c-CsHlo (1.0), and Me* C= CMe2 (15.0). Complexarion between the mercurial and benzaldehyde, which enhanced the rate of decomposition of the mercurial to produce: CClz of the same reactivity as that from the ...