Manganese, nitrides

Another useful method that has been investigated is the transfer of nitride from one metal center to a another. Thus, porphyrin manganese nitrides have been documented to participate in nitrogen transfer reactions to Cr -porphyrin and C -salen to furnish the corresponding Cr-nitrides (Eq. (11)) [19]. 

Irradiation of manganese azides derived from Mn(III) porphyrin, cyclam, and polyamide complexes represents one of the earliest methods reported for the preparation of nitrido manganese complexes (Eq. (40)) [50], Additional methods have become available for the synthesis of manganese nitrides that utilize ammonia in combination with oxidants such as Cl2, PhIO, NaCIO, and NBS (Eq. (41)) [51-53]. Employing these methods, the manganese nitrides incorporating porphyrin, phath-locyanine, cyclam, salen, and bidentate Schiff base complexes have been documen-... 

The transfer of a nitrogen atom from a metal nitride to another metal complex is a process that works quite well with Mnv nitrides. Thus manganese nitrides derived from porphyrin or salen ligands participate in nitride transfer reaction to salen and porphyrin Mnm complexes to give new nitrido manganese products (Eq. (42) Chart 2) [55,56]. 

The interaction of alkaline earth nitrides and manganese nitride at high temperatures leads to compounds such as Ca3MnN3 or Ca6MnN5 that have sheet structures involving the trigonal planar [Mn(N)3]6 anion (c/ CO -).28... 

Although asymmetric aziridination of styrenes was attempted by Burrow and Katsuki and their coworkers using manganese salen complexes in the presence of PhI=NTs, low asymmetric induction was observed ". Nishikori and Katsuki later employed a salen complex synthesized from (/ ,/f)-2,3-diaminobutane and ( i-biphenol, and found that the chirality at the 3,3 -positions is more important for the asymmetric induction (equation 85) . Carreira conducted the stoichiometric amination of enol ethers and alkenes using a manganese nitride salen complex. Komatsu extended the methodology to the catalytic process and attained 94% ee for aziridination of / -isopropylstyrene. ... 

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