Easy entry to terminal 1,5- and 1,6-enynes from (indenyl)ruthenium(II) allenylidenes and grignard reagents

Organometallics

Volumn 21, Issue 18, 2002, Pages 3837-3840

  Cadierno, Victorio ^a   Conejero, Salvador ^a   Gamasa, M Pilar ^a   Gimeno, José ^a  

^a UNIVERSITY OF OVIEDO   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

DEMETALATION;

CHEMICAL BONDS; DERIVATIVES; ELECTRONS; POSITIVE IONS; SUBSTITUTION REACTIONS;

ORGANOMETALLICS;

EID: 0000494920     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om020330n     Document Type: Article

References (38)

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3. (c) Caffyn, A. J. M.; Nicholas, K. M. In Comprehensive Organometallic Chemistry II; Abel, E. W., Stone, F. G. A., Wilkinson, G., Eds.; Pergamon: New York, 1995; Vol. 12, p 685.
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13. For theoretical calculations on cationic transition-metal allenylidene complexes see: (a) Cadierno, V.; Gamasa, M. P.; Gimeno, J.; Conzález-Cueva, M.; Lastra, E.; Borge, J.; García-Granda, S.; Pérez-Carreño, E. Organometallics 1996, 15, 2137.
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17. (a) Cadierno, V.; Gamasa, M. P.; Gimeno, J.; Pérez-Carreño, E.; García-Granda, S. Organometallics 1999, 18, 2821.
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19. (c) Cadierno, V.; Conejero, S.; Gamasa, M. P.; Gimeno, J.; Pérez-Carreño, E.; García-Granda, S. Organometallics 2001, 20, 3175.
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25. 3] are reported in: (a) Cadierno, V.; Gamasa, M. P.; Gimeno, J.; Borge, J.; García-Granda, S. Organometatlics 1997, 16, 3178.
26. (b) Cadierno, V.; Gamasa, M. P.; Gimeno, J.; López-González, M. C.; Borge, J.; García-Granda, S. Organomeyallics 1997, 16, 4453.
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28. (d) Cadierno, V.; Conejero, S.; Gamasa, M. P.; Gimeno, J.; Rodriguez, M. A. Organometallics 2002, 21, 203.
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33. Analytical and spectroscopic data for compounds 2a-d through 7a- c have been provided as Supporting Information.
34. To the best of our knowledge only terminal enynes 6b and 7b have been previously reported: (a) O'Boyle, J. E.; Nicholas, K. M. Tetrahedron Lett. 1980, 21, 1595.
35. (b) Khun, O.; Rau, D.; Mayr, H. J. Am. Chem. Soc. 1998, 120, 900.
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37. Related ruthenium-catalyzed propargylic substitutions of mono-substituted propargylic alcohols, via allenylidene intermediates, have been recently reported: (a) Nishibayashi, Y.; Wakiji, I.; Hidai, M. J. Am. Chem. Soc. 2000, 122, 11019.
38. (b) Nishibayashi, Y.; Wakiji, I.; Ishii, Y.; Uemura, S.; Hidai, M. J. Am. Chem. Soc. 2001, 123, 3393.