A. Sivaramakrishna et al. / Journal of Organometallic Chemistry 695 (2010) 1627e1633
1633
4962;
4.15. UV-irradiation studies
(j) L. Wang, T. Shima, F. Hampel, J.A. Gladysz, Chem. Commun. (2006) 4075;
(k) L.Y. Wang, F. Hampel, J.A. Gladysz, Angew. Chem. Int. Ed. 45 (2006) 4372;
(l) N. Lewanzik, T. Oeser, J. Blumel, J.A. Gladysz, J. Mol, Catal. A: Chem. 254 (2006)
20.
Irradiations were carried out with a Englehard Hanovia Lamp
(125 W) at a distance of 16 cm from the reaction vessel. 4a.dppp
(24 mg, 0.033 mmol) or 4b.dppe (28 mg, 0.04 mmol) was trans-
ferred to a J. Young NMR tube and toluene-d8 (0.9 mL) was added.
The resulting solution was subjected to three freezeethaw cycles,
and then allowed to warm to room temperature. The colourless
solution was then irradiated for 9 h.
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Acknowledgements
[12] T. Agapie, S.J. Schofer, J.A. Labinger, J.E. Bercaw, J. Am. Chem. Soc. 126 (2004)
1304.
Financial support from the AngloPlatinum Corporation, DST
Centre of Excellence in Catalysis (c* change), NRF, UCT and gifts of
chemicals from Johnson & Matthey are gratefully acknowledged.
The authors also wish to thank Ian Rogers for his valuable input into
the study.
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