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Facile Synthesis of Alkynyl− and Vinylidene−Niobocene Complexes. Unexpected η 1 -Vinylidene−η 2 -Alkyne Isomerization

✍ Scribed by García-Yebra, Cristina; López-Mardomingo, Carmen; Fajardo, Mariano; Antiñolo, Antonio; Otero, Antonio; Rodríguez, Ana; Vallat, Alain; Lucas, Dominique; Mugnier, Yves; Carbó, Jorge Juan; Lledós, Agustí; Bo, Carles


Book ID
120258005
Publisher
American Chemical Society
Year
2000
Tongue
English
Weight
286 KB
Volume
19
Category
Article
ISSN
0276-7333

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η1-Vinylidene to η2-Alkyne Isomerization
✍ Junes Ipaktschi; Javad Mohsseni-Ala; Sascha Uhlig 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 175 KB

## Abstract The thermal isomerizations of η^1^‐vinylidene complexes [(η^5^‐C~5~H~5~)(CO)(NO)W=C=CHR] [5a, R = Si(CH~3~)~2~C(CH~3~)~3~; 5c, R = C(CH~3~)~3~] as well as [(η^5^‐C~5~H~5~)(CO)(NO)Mo=C=CHC(CH~3~)~3~] (8), to the corresponding η^2^‐1‐alkyne complexes [(η^5^‐C~5~H~5~)(CO)(NO)W(η^2^‐H−C≡C−R