On the configuration resulting from oxidative addition of RX to Pd(PPh3)4 and the mechanism of the cis-to-trans isomerization of [PdRX(PPh3)2] complexes (R = aryl, X = halide)

Organometallics

Volumn 17, Issue 5, 1998, Pages 954-959

  Casado, Arturo L ^a   Espinet, Pablo ^a  

^a UNIVERSITY OF VALLADOLID   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001455450     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om9709502     Document Type: Article

References (25)

1. (a) Farina, V.; Roth, G. P. in Advances in Metal-Organic Chemistry; Liebeskind, L. S., Ed.; JAI Press: Greenwich, CT, 1996, Vol. 5, pp 1-53.
2. (b) Farina, V. In Comprehensive Organometallic Chemistry II; Abel, E. W., Stone, F. G. A., Wilkinson, G., Eds.; Pergamon: Oxford, 1995, Vol. 12, Chapter 3.4.
3. (c) Brown, J. M.; Cooley, N. A. Chem. Rev. 1988, 88, 1131-1146.
4. (a) Amatore, C.; Broeker, G.; Jutand, A.; Khalil, F. J. Am. Chem. Soc. 1997, 119, 5176-5185.
5. (b) Amatore, C.; Jutand, A.; Suarez, A. J. Am. Chem. Soc. 1993, 115, 9531-9541.
6. (c) Amatore, C.; Pflüger, F. Organometallics 1990, 9, 2276-2282.
7. Urata, H.; Tanaka, M.; Fuchikami, T. Chem. Lett. 1987, 751-754.
8. Minniti, D. Inorg. Chem. 1994, 33, 2631-2634.
9. (a) Tatsumi, K.; Hoffmann, R.; Yamamoto, A.; Stille, J. K. Bull. Chem. Soc. Jpn. 1981, 54, 1857-1867.
10. (b) Ozawa, F.; Ito, T.; Nakamura, Y.; Yamamoto, A. Bull. Chem. Soc. Jpn. 1981, 54, 1868-1880.
11. (c) Komiya, S.; Albright, T. A.; Hoffmann, R.; Kochi, J. K. J. Am. Chem. Soc. 1976, 98, 7255-7265.
12. (a) Wilkins, R. G. Kinetics and Mechanism of Reactions of Transitions Metal Complexes, 2nd ed.; VCH: Weinheim, 1991.
13. (b) Espenson, J. H. Chemical Kinetics and Reaction Mechanisms, 2nd ed.; McGraw-Hill: Singapore, 1995.
14. 3; see, for example, ref 1a.
15. Catalan, J.; López, V.; Pérez, P.; Martín-Villamil, R.; Rodriguez, J.-G. Liebigs Ann. Chem. 1995, 241-252.
16. Complexes with THF coordinated to Pd(II) have been reported, see: Usón, R.; Forniés, J. Adv. Organomet. Chem. 1988, 28, 219-297.
17. isot (see ref 6b, pp 16).
18. 0.
19. 0 -[2])) = kt. Neither of these simple models explains the first-order kinetics, whereas eq 4 does.
20. This two-terms rate law is common for substitution processes in planar complexes, see, for example: Belluco, U.; Cattalini, L.; Basolo, F.; Pearson, R. G.; Turco, A. J. Am. Chem. Soc. 1965, 87, 241-246.
21. 3 does not very noticeably catalyze the isomerization following a pentacoordinate-based mechanism may be due to a higher energy barrier for the pseudorotations.
22. 2] complexes in alcoholic solvents, see: Alibrandi, G.; Scolaro, L. M.; Romeo, R. Inorg. Chem. 1991, 30, 4007-4013 and references therein.
23. Frey, U.; Helm, L.; Merbach, A. E.; Romeo, R. J. Am. Chem. Soc. 1989, 111, 8161-8165.
24. Coulson, D. R. Inorg. Synth. 1972, 13, 121-123.
25. Espinet, P.; Martinez-Ilarduya, J. M.; Pérez-Briso, C.; Casado, A. L.; Alonso, M. A. J. Organomet. Chem., in press.