Facile N...N coupling of manganese(V) imido species.
(Salen)manganese(V) nitrido species are activated by electrophiles such as trifluoroacetic anhydride (TFAA) or trifluoroacetic acid (TFA) to produce N2. Mechanistic studies suggest that the manganese(V) nitrido species first react with TFAA or TFA to produce an imido species, which then undergoes N...N coupling. It is proposed that the resulting manganese(III) mu-diazene species decomposes via internal redox to give N2 and manganese(II). The manganese(II) species is then rapidly oxidized by manganese(V) imide to give manganese(III) and CF3CONH2 (for TFAA) or NH3 (for TFA).
Yiu
Shek-Man
SM
Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong, China.
Lam
William W Y
WW
Ho
Chi-Ming
CM
Lau
Tai-Chu
TC
D000089:Acetic Anhydrides; D005463:Fluoroacetates; D007094:Imides / Q000737:chemistry*; D007700:Kinetics; D008345:Manganese / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry*; D014269:Trifluoroacetic Acid / Q000737:chemistry
D000089:Acetic Anhydrides; D005463:Fluoroacetates; D007094:Imides; D009942:Organometallic Compounds; D008345:Manganese; C017958:trifluoroacetic anhydride; D014269:Trifluoroacetic Acid; D009584:Nitrogen