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Please login to access the full content or check if you have access via2.11.4.7.6.1 Variation 1: Zirconium-Catalyzed Carboalumination of Alkynes
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Negishi, E.-i.; Takahashi, T., Science of Synthesis, (2003) 2, 732.
Aside from the Ziegler–Natta and related alkene polymerization reactions, the monocarboalumination reaction of alkynes with organoaluminums, e.g. trimethylaluminum, dimethylaluminum chloride, and diethylaluminum chloride, catalyzed by dichlorobis(η5-cyclopentadienyl)zirconium(IV) (49),[184,185] appears to have been the first zirconium-catalyzed carbometalation reaction. In addition to the simple alkylaluminums mentioned above, organoaluminums containing allyl,[186] benzyl,[187] and various heteroatom-containing substituents, e.g. hydroxy, iodo, and phenylsulfanyl groups, have been successfully employed, e.g. formation of 137-140 (Scheme 63).
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Meeeee 88 Meeeeeeee ee Meeeeeeee-Meeeeeeee Meeeeeeeeeeeeeeee[888,888]
Meeeee 88 Meeeeeeee ee Meeeeeeee-Meeeeeeee Meeeeeeeeeeeeeee eeee Meeeeeeeeeeeeeee[888]
References
| [126] | Meeeeee, M.; Meeeeee, M., M. Me. Meee. Mee., (8888) 888, 8888. |
| [184] | Mee Meee, M. M.; Meeeeee, M., M. Me. Meee. Mee., (8888) 888, 8888. |
| [185] | Meeeeee, M.; Mee Meee, M. M.; Meeeeee, M., M. Me. Meee. Mee., (8888) 888, 8888. |
| [186] | Meeeee, M. M.; Meeeeee, M., Meeeeeeeeee Meee., (8888) 88, 8888. |
| [187] | Meee, M. M.; Mee Meee, M. M.; Meeee, M. M.; Meeeeee, M., M. Mee. Meee., (8888) 88, 8888. |
| [188] | Meeeeee, M.; Meeeeeee, M. M.; Meeeeeee, M.; Meeee, M.; Meeeeeeee, M., M. Me. Meee. Mee., (8888) 888, 8888. |
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- 8.Meeeee-Meee, (8888) M 88-8, 888.
- 8.Meeeee-Meee, (8888) M 88e, 8888.
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