Unusual formation of a hex-3-ene-1,5-diyne-3-yl ligand from a buta-1,3-diyne in the Cp*2TiCl2–Mg system

作者: Paul-Michael Pellny , Frank G. Kirchbauer , Vladimir V. Burlakov , Anke Spannenberg , Uwe Rosenthal

DOI: 10.1039/A906777I

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摘要: The reaction of [Cp*2TiCl2] with equimolar amounts magnesium in the presence Me3SiCC–CCSiMe3 yields first early transition metal η3-enyne complex [Cp*2Ti{η3-Me3SiC3C(CCSiMe3)SiMe3}] 1 which is suggested to be an intermediate catalysed oligomerization reactions alk-1-ynes.

参考文章(17)
Munetaka Akita, Hajime Yasuda, Akira Nakamura, Regioselective Homo- and Codimerization of 1-Alkynes Leading to 2,4-Disubstituted 1-Buten-3-ynes by Catalysis of a (η5-C5Me5)2TiCl2/RMgX System Bulletin of the Chemical Society of Japan. ,vol. 57, pp. 480- 487 ,(1984) , 10.1246/BCSJ.57.480
Anne K. McMullen, John P. Selegue, Jin Guu. Wang, Synthesis and structure of a tungsten .eta.3-enynyl complex resulting from facile alkynyl-vinylidene coupling Organometallics. ,vol. 10, pp. 3421- 3423 ,(1991) , 10.1021/OM00056A005
Vojtech Varga, Lidmila Petrusová, Jir̂í ©ejka, Karel Mach, Fermethyltitanocene(III) diacetylide - magnesium tweezer complexes, intermediates in the catalysis of linear head-to-tail dimerization of terminal acetylenes Journal of Organometallic Chemistry. ,vol. 532, pp. 251- 259 ,(1997) , 10.1016/S0022-328X(96)06806-4
Claudio Bianchini, Paolo Innocenti, Maurizio Peruzzini, Antonio Romerosa, Fabrizio Zanobini, C−C Bond Formation between Vinylidene and Alkynyl Ligands at Ruthenium(II) Leading to either Enynyl or Dienynyl Complexes† Organometallics. ,vol. 15, pp. 272- 285 ,(1996) , 10.1021/OM950721K
J. Gotzig, H. Otto, H. Werner, Bildung eines neuartigen C4-Liganden durch oxidative kupplung zweier metallgebundener alkinylgruppen Journal of Organometallic Chemistry. ,vol. 287, pp. 247- 254 ,(1985) , 10.1016/0022-328X(85)87261-2
Paul-Michael Pellny, Frank G. Kirchbauer, Vladimir V. Burlakov, Wolfgang Baumann, Anke Spannenberg, Uwe Rosenthal, Reactivity of Permethylzirconocene and Permethyltitanocene toward Disubstituted 1,3-Butadiynes: η4- vs η2-Complexation or C−C Coupling with the Permethyltitanocene Journal of the American Chemical Society. ,vol. 121, pp. 8313- 8323 ,(1999) , 10.1021/JA991046Z
Petr Štěpnička, Róbert Gyepes, Ivana Císařová, Michal Horáček, Jiří Kubišta, Karel Mach, Photoinduced Generation of Catalytic Complexes from Substituted-Titanocene−Bis(trimethylsilyl)ethyne Complexes: Contribution to the Mechanism of the Catalytic Head-to-Tail Dimerization of Terminal Alkynes Organometallics. ,vol. 18, pp. 4869- 4880 ,(1999) , 10.1021/OM9905714
Munetaka Akita, Shuichiro Sugimoto, Masako Terada, Yoshihiko Moro-oka, Photochemical head-to-head (R H) vs. head-to-tail dimerization (R Ph) of iron acetylide complexes (η5-C5Me5)Fe(CO)2CCR leading to a dimetallacyclopentenone and a μ-vinylidene complex Journal of Organometallic Chemistry. ,vol. 447, pp. 103- 106 ,(1993) , 10.1016/0022-328X(93)80278-J
Claudio Bianchini, Maurizio Peruzzini, Fabrizio Zanobini, Piero Frediani, Alberto Albinati, A ruthenium(II) enynyl complex mediates the catalytic dimerization of 1-alkynes to Z-1,4-disubstituted enynes Journal of the American Chemical Society. ,vol. 113, pp. 5453- 5454 ,(1991) , 10.1021/JA00014A047