Synthesis and Application of Novel Ruthenium Catalysts for High Temperature Alkene Metathesis
AbstractFour pyridinyl alcohols and the corresponding hemilabile pyridinyl alcoholato ruthenium carbene complexes of the Grubbs second generation-type RuCl(H2IMes)(O^N)(=CHPh), where O^N = 1-(2′-pyridinyl)-1,1-diphenyl methanolato, 1-(2′-pyridinyl)-1-(2′-chlorophenyl),1-phenyl methanolato, 1-(2′-pyridinyl)-1-(4′-chlorophenyl),1-phenyl methanolato and 1-(2′-pyridinyl)-1-(2′-methoxyphenyl),1-phenyl methanolato, are synthesized in very good yields. At high temperatures, the precatalysts showed high stability, selectivity and activity in 1-octene metathesis compared to the Grubbs first and second generation precatalysts. The 2-/4-chloro- and 4-methoxy-substituted pyridinyl alcoholato ligand-containing ruthenium precatalysts showed high performance in the 1-octene metathesis reaction in the range 80–110 °C. The hemilabile 4-methoxy-substituted pyridinyl alcoholato ligand improved the catalyst stability, activity and selectivity for 1-octene metathesis significantly at 110 °C. View Full-Text
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Tole, T.T.; du Toit, J.I.; van Sittert, C.G.C.E.; Jordaan, J.H.L.; Vosloo, H.C.M. Synthesis and Application of Novel Ruthenium Catalysts for High Temperature Alkene Metathesis. Catalysts 2017, 7, 22.
Tole TT, du Toit JI, van Sittert CGCE, Jordaan JHL, Vosloo HCM. Synthesis and Application of Novel Ruthenium Catalysts for High Temperature Alkene Metathesis. Catalysts. 2017; 7(1):22.Chicago/Turabian Style
Tole, Tegene T.; du Toit, Jean I.; van Sittert, Cornelia G.C.E.; Jordaan, Johan H.L.; Vosloo, Hermanus C.M. 2017. "Synthesis and Application of Novel Ruthenium Catalysts for High Temperature Alkene Metathesis." Catalysts 7, no. 1: 22.
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