Addition of imine PhNC(Ar)R (Ar = Ph, R = Me; p-MeOC6H4, R = H) to (PhN)Mo(TMS-o-pda)(CH2CMe2) 1 [TMS-o-pda = bis(trimethylsilyl)-o-phenylenediamide] affords the corresponding η2-imine complexes (PhN)Mo(TMS-o-pda)[PhNC(Ar)R] 2a and 2b; analogous reactions with aldimines RNC(H)Ar (Ar = p-MeOC6H4, R = CH2Ph, Et) afford products (PhN)Mo(TMS-o-pda)[RNC(H)ArC(H)ArNR] 3a and 3b resulting from reductive imine coupling, providing the first example of facile and general Mo(IV) η2-imine complex formation.
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Cameron et al. (2000) studied this question.
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