Direct Comparison of C-H Bond Amination Efficacy through Manipulation of Nitrogen-Valence Centered Redox: Imido versus Iminyl.

ABSTRACT: Reduction of previously reported iminyl radical (^ArL)FeCl(^•N(C₆H₄-p-^tBu)) (2) with potassium graphite furnished the corresponding high-spin (S = ⁵/₂) imido (^ArL)Fe(N(C₆H₄-p-^tBu)) (3) (^ArL = 5-mesityl-1,9-(2,4,6-Ph₃C₆H₂)dipyrrin). Oxidation of the three-coordinate imido (^ArL)Fe(NAd) (5) with chlorotriphenylmethane afforded (^ArL)FeCl(^•NAd) (6) with concomitant expulsion of Ph₃C(C₆H₅)CPh₂. The respective aryl/alkyl imido/iminyl pairs (3, 2; 5, 6) have been characterized by EPR, zero-field ⁵⁷Fe Mössbauer, magnetometry, single crystal X-ray diffr

SUBMITTER: Wilding MJT 

PROVIDER: S-EPMC5821126 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature