Acknowledgements
CS is grateful to the Foundation for Polish Science, for the 'Ventures' grant. The project "Ventures/2008-1/5" is realized within the 'Ventures' program of Foundation for Polish Science, cofinanced from European Union, Regional Development Fund within Innovative Economy Operational Programme. We are grateful to Ms. Magdalena Jawiczuk for the preparation of compound 13a. Special thanks are addressed to Ms. Karolina •ukowska for an important contribution to the edition of the text.
References and Notes
1. For recent reviews, see: (a) Handbook of Metathesis; Grubbs, R. H., Ed.; Wiley-VCH: Weinheim, Germany, 2003. (b) Deshmukh, P. H.; Blechert, S. Dalton Trans. 2007, 2479. (c) Astruc, D. New J. Chem. 2005, 29, 42 (d) Samoj•owicz, C.; Bieniek, M.; Grela, K. Chem. Rev. 2009, 109, 3708. (d) Diesendruck, C. E.; Tzur, E.; Lemcoff, G. Eur. J. Inorg. Chem. 2009, 4185 (e) Metathesis in Natural Product Synthesis: Strategies, Substrates and Catalysts; Cossy, J., Ed.; Arseniyadis, S. Ed.; Meyer, C. Ed.; Wiley-VCH: Weinheim, Germany, 2010. (f) Michalak, M.; Gu•ajski, •.; Grela, K. "Alkene Metathesis" in Science of Synthesis: Houben–Weyl Methods of Molecular Transformations, Ed.: A. de Meijere; Georg Thieme Verlag KG, 2010; Vol. 47a, pp 327-438. 2. Precisely, the common Ru-based olefin metathesis catalysts should be called pre-catalysts: “Compounds that are well-characterized, and that under some conditions will catalyze the metathesis of olefins, but that have not been proven to be essentially identical to the active species for the metathesis reaction, are not well-defined catalysts. They are catalyst precursors, or (pre)catalysts.” Schrock. R. R. J. Mol. Catal. A: Chem. 2004, 213, 21. 3. (a) Ackermann, L.; Fürstner, A.; Weskamp, T.; Kohl, F. J.; Herrmann, W. A. Tetrahedron Lett. 1999, 40, 4787. (b) Huang, J.; Stevens, E. D.; Nolan, S. P.; Petersen, J. L. J. Am. Chem. Soc. 1999, 121, 2674. (c) Scholl, M.; Trnka, T. M.; Morgan, J. P.; Grubbs, R. H. Tetrahedron Lett. 1999, 40, 2247. 4. (a) For the 'first generation' Hoveyda type catalyst, see: Kingsbury, J. S.; Harrity, J. P. A.; Bonitatebus, P. J., Jr.; Hoveyda, A. H. J. Am. Chem. Soc. 1999, 121, 791. For the 'second generation' Hoveyda type catalyst, see: (b) Garber, S. B.; Kingsbury, J. S.; Gray, B. L.; Hoveyda, A. H. J. Am. Chem. Soc. 2000, 122, 8168. (c) Gessler, S.; Randl, S.; Blechert, S. Tetrahedron Lett. 2000, 41, 9973. 5. (a) Wakamatsu, H.; Blechert, S. Angew. Chem. Int. Ed. 2002, 41, 794. (b) Grela, K.; Harutyunyan, S.; Michrowska, A. Angew. Chem. Int. Ed. 2002, 114, 4038. (c) Michrowska, A.; Bujok, R.; Harutyunyan, S.; Sashuk, V.; Dolgonos. G.; Grela, K. J. Am. Chem. Soc. 2004, 126, 9318. 6. Bieniek, M.; Michrowska, A.; Usanov D. L.; Grela, K. Chem. Eur. J. 2008, 14, 806.
