Reaktionen von Pentacarbonyl(trifluormethylisocyanid)chrom mit Nucleophilen (original) (raw)

Trifluoromethyl isocyanide complexes / Carbene complexes / Chromium complexes Reactions of Pentacarbonyl(trifluoromethy1 isocyanide)chromium with Nucleophiles Pentacarbonyl(trifluoromethy1 isocyanide)chromium (1) reacts which is further attacked by the nucleophile. The isolated with nucleophilic reagents like secondary amines (2a-d), 1,2-products are carbene complexes of the type (CO)&rdimethylhydrazine (2e), or methanol (2f). The first nucleo-[C(NR,)N = C(NR,)F] (3a-c), (CO),Cr[C(NR,)N = C(NR,),] (3d), philic attack occurs at the isocyanide carbon atom. The formed (CO),Cr[CN(CH,)N(CH)3C{N(CH3)N(CH3)H] = I41 (3e), and Fischer-type carbene complexes readily eliminate HF under (CO),Cr[C(OCH,)N = C(OCH,),] (3f). The structure of 3c has the reaction conditions forming a difluoromethanimine moiety, been determined by an X-ray crystal structure analysis.