Cyclopropanation in the reaction of [M(CO)₃Tp]^– [M = Mo, W; Tp = hydridotris(pyrazolyl)borate] with I(CH₂)₃I and the insertion of isocyanide into metal–acyl bonds

Abstract

Treatment of I(CH₂)₃I with anions [M(CO)₃Tp]^– (M = Mo, W) leads to an η²-acyl cyclopropanation product M(CO)₂{η²-C(O)(c-C₃H₅)}Tp which decarbonylates to give π-allyl complexes and reacts with CNBu^t by formal insertion of isonitrile into the metal–acyl bond.

References

1. M. J. Winter, N. A. Bailey, D. A. Dunn, C. N. Foxcroft, G. R. Harrison and S. Woodward, J. Chem. Soc., Dalton Trans., 1988, 1449.
2. H. Adams, N. A. Bailey, M. Grayson, C. Ridgway, A. J. Smith, P. Taylor and M. J. Winter, Organometallics, 1990, 9, 2621.
3. M. D. Curtis, K.-B. Shiu and W. M. Butler, J. Am. Chem. Soc., 1986, 108, 1550.
4. F. J. Manganiello, L. W. Christensen and W. H. Jones, J. Organomet. Chem., 1982, 235, 327.
5. M. D. Curtis and K.-B. Shiu, Inorg. Chem., 1985, 24, 1213.
6. J. L. Templeton, C. A. Ruskins, M. A. Collins, A. S. Gamble and T. L. Tonker, J. Am. Chem. Soc., 1989, 111, 2550.
7. S. Trofimenko, J. Am. Chem. Soc., 1969, 91, 588.
8. K. H. Pannell, R. N. Kapoor, M. Wells and T. Giasolli, Organometallics, 1987, 6, 663.
9. G. L. Geoffroy, J. B. Sheridan, S. L. Bassner and C. Kelley, Pure Appl. Chem., 1989, 61, 1723.
10. A. Mantovani, G. Facchin, T. Boschi and B. Crociani, J. Organomet. Chem., 1981, 206, C11.
11. L. D. Durfee and I. P. Rothwell, Chem. Rev., 1988, 88, 1059.