Designing and synthesis of phosphine derivatives of Ru3(CO)12 – Studies on catalytic isomerization of 1-alkenes

Pandya, Chayan; Panicker, Rakesh R.; Senjaliya, Parth; Hareendran, M.K. Hima; Anju, P.V.; Sarkar, Sibasis; Bhat, Haamid Rasool; Jha, Prakash C.; Rao, Koya Prabhakara; Smith, Gregory S.; Sivaramakrishna, Akella

doi:10.1016/j.ica.2020.120211

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2022

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“…The Ru source was selected on the basis of its low price and bench stability (Supplementary Fig. 2 and 3 ) since Ru 3 (CO) 12 must be handled under nitrogen 26 . A turnover frequency > 10 8 h −1 can be obtained (Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

Parts–per–million of ruthenium catalyze the selective chain–walking reaction of terminal alkenes

et al. 2022

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The chain–walking of terminal alkenes (also called migration or isomerization reaction) is currently carried out in industry with unselective and relatively costly processes, to give mixtures of alkenes with significant amounts of oligomerized, branched and reduced by–products. Here, it is shown that part–per–million amounts of a variety of commercially available and in–house made ruthenium compounds, supported or not, transform into an extremely active catalyst for the regioselective migration of terminal alkenes to internal positions, with yields and selectivity up to >99% and without any solvent, ligand, additive or protecting atmosphere required, but only heating at temperatures >150 °C. The resulting internal alkene can be prepared in kilogram quantities, ready to be used in nine different organic reactions without any further treatment.

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Section: Resultsmentioning

confidence: 99%