Olefin Metathesis in the Ionic Liquid 1‐Butyl‐3‐methylimidazolium Hexafluorophosphate Using a Recyclable Ru Catalyst: Remarkable Effect of a Designer Ionic Tag | Zendy

Yao Qingwei | Zendy; Zhang Yiliang | Zendy

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Olefin Metathesis in the Ionic Liquid 1‐Butyl‐3‐methylimidazolium Hexafluorophosphate Using a Recyclable Ru Catalyst: Remarkable Effect of a Designer Ionic Tag

Author(s) -

Yao Qingwei,

Zhang Yiliang

Publication year - 2003

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200351222

Subject(s) - ionic liquid , hexafluorophosphate , catalysis , metathesis , ruthenium , chemistry , sulfonyl , carbene , enyne metathesis , diene , ionic bonding , solvent , toluene , salt metathesis reaction , organic chemistry , combinatorial chemistry , ion , polymerization , polymer , alkyl , natural rubber

Designer labels : Ruthenium carbene complex 1 bearing an ionic tag was shown to be a highly reactive catalyst for the ring‐closing metathesis of various diene and enyne substrates in minimally ionic solvent systems (see scheme; Bmim=1‐butyl‐3‐methylimidazolium, Ts=toluene‐4‐sulfonyl). The catalyst can be repeatedly recycled and reused (up to at least 10 cycles) without significant loss of its activity, whereas other catalysts tested exhibited a dramatic diminishment in their activity upon recovery from the ionic layer.

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