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Published December 2016 | Supplemental Material
Journal Article Open

Synthesis and catalytic activity of supported acenaphthoimidazolylidene N-heterocyclic carbene ruthenium complex for ring closing metathesis (RCM) and ring opening metathesis polymerization (ROMP)


Ruthenium catalyzed ring closing metathesis (RCM) and ring opening metathesis polymerization (ROMP) reactions using a supported bis(arylimino)acenaphthene N-heterocyclic carbene (BIAN-NHC) complex have been reported. The BIAN-NHC Ru-complex exhibits excellent catalytic activity and tolerates a wide range of substrates at low catalyst loadings. DFT calculations were also carried out on some selected key intermediates in the reaction mechanism to study the effect of having the conjugated aromatic moiety (BIAN-NHC) in the backbone of the complex. The newly synthesized BIAN-NHC Ru-complex shows comparable catalytic activities to the commercially available second generation Ru catalyst HG2. The recycled complex was reused for up to eight reaction cycles for the RCM of N,N-diallyl tosylamine affording a high average isolated yield, with lower levels of Ru contamination in the final product.

Additional Information

© 2016 Elsevier Inc. Received 12 July 2016, Revised 25 August 2016, Accepted 27 August 2016, Available online 1 October 2016. The authors gratefully acknowledge support of this work from the Qatar National Research Fund project number: NPRP X-095-1-024. We also acknowledge Prof. Ivan Bela for his generous support for analyzing the polymers using GPC in his laboratory. The authors declare no competing financial interest.

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