Reaction Of A Sterically Encumbered Iron(Ⅰ) Aryl/arene With Organoazides: Formation Of An Iron(Ⅴ) Bis(imide)

摘要

Reaction of 3,5-(Pr~i)_2Ar~*Fe(η~6-C_6H_6)(3,5-(Pr~i)_2Ar~* = C_6H_1-2,6-(C_6H_2-2,4,6-(Pr~i)_3_2-3,5-Pr~i_2) with N_3C_6H_3-2,6-Mes_2 (Mes = C_6H_2-2,4,6-Me_3) afforded the dimeric iron(Ⅱ) amido/aryl complex {CH_2C_6H_2-2(C_6H_3-2-N(H)FeAr~*-3,5-Pr~i_2)-3,5-Me_2}_2 (1) which arises via methyl hydrogen abstraction by nitrogen and dimerization of the radical via C-C bond formation; in contrast, reaction of 3,5-Pr~i_2Ar~*Fe(η~6-C_6H_6) with N_3(l-Ad) (1-Ad = 1-adamantanyl) gave the iron(v) bis(imido) complex 3,5-(Pr~i)_2Ar~*Fe{N(l-Ad)}_2 (2).