77-79-2Relevant articles and documents
Synthesis of symmetrical sulfones from rongalite: Expansion to cyclic sulfones by ring-closing metathesis
Kotha, Sambasivarao,Khedkar, Priti,Ghosh, Arun Kumar
, p. 3581 - 3585 (2005)
A simple method for the synthesis of symmetrical sulfones using rongalite has been developed. Terminally olefinic sulfone derivatives were subjected to ring-closing metathesis (RCM) reactions to generate cyclic sulfones. Wiley-VCH Verlag GmbH & Co. KGaA, 2005.
A six-coordinated cationic ruthenium carbyne complex with liable pyridine ligands: Synthesis, structure, catalytic investigation, and DFT study on initiation mechanism
Liu, Guiyan,Zheng, Lu,Shao, Mingbo,Zhang, Huizhu,Qiao, Weixia,Wang, Xiaojia,Liu, Bowen,Zhao, Haitao,Wang, Jianhui
supporting information, p. 4718 - 4725 (2014/06/24)
A novel six-coordinated high-valence cationic ruthenium carbyne complex bearing two liable pyridine ligands was prepared in high yield by the reaction of the ruthenium-based complex (IMesH2)(Cl)2(C 5H5N)2RuCHPh [IMesH2=1,3-dimesityl- 4,5-dihydroimida-zol-2-ylidene] with excess iodine as an oxidant in CH 2Cl2 at 25 °C under N2. The new ruthenium carbyne-based complex shows moderate to good catalytic activity for ring-closing metathesis reactions. Importantly, no double bond isomerization by-product was produced at elevated reaction temperatures (100 °C-137 °C) in the reaction catalyzed by the synthesized ruthenium carbyne complex. A mechanism involving the in situ conversion of the ruthenium carbyne through the addition of an iodide to the carbyne carbon was also proposed, and DFT calculations were performed to explain the initiating mechanism.
A unique ruthenium carbyne complex: A highly thermo-endurable catalyst for olefin metathesis
Wang, Jianhui,Shao, Mingbo,Zheng, Lu,Qiao, Weixia,Wang, Jingjing
supporting information, p. 2743 - 2750,8 (2012/12/12)
A cationic ruthenium carbyne complex was prepared and was found to initiate olefin metathesis reactions with good activities, which throws a new light on the design of a new type of ruthenium catalyst for RCM reactions. More importantly, no double bond isomerized by-product was observed even at elevated temperatures in reactions catalyzed by the new carbyne complex. A mechanism involving the in situ conversion of the ruthenium carbyne to a ruthenium carbene complex via addition of an iodide to the carbyne carbon was also proposed.