1. Reductive coupling of carbon monoxide with methyl isocyanide in a seven-coordinate niobium complex
2. Hypervalent iodine compounds in general have been the subject of several recent reviews and monographs: (a) Moriarty, R. M.; Prakash, O. InAdvances in Heterocyclic Chemistry; Katritsky, A. R., Ed.; Academic: New York, 1998; pp 1−87. (b) Varvoglis, A.Tetrahedron1997,53, 1179−1255. (c) Zhdankin, V. V.; Stang, P. J.Chem. Rev.1996,96, 1123−1178. (d) Varvoglis, A.Hypervalent Iodine in Organic Synthesis; Academic: New York, 1997.