Matches in SemOpenAlex for { <https://semopenalex.org/work/W3150793793> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W3150793793 endingPage "10" @default.
- W3150793793 startingPage "1" @default.
- W3150793793 abstract "Iridium had shown no special advantage in heterogeneous catalysis and this situation seemed to carry over into the early work in homogeneous catalysis. In particular, the failure of IrCl(PPh3)3, the Ir analog of Wilkinson’s catalyst, to give catalytic hydrogenation strongly influenced thinking at the time. The developments that changed the situation were Shrock and Osborn’s work on [(cod)RhL2]+ complexes that showed how lowering the L:M ratio from 3 to 2 gave improved catalysts, followed by our own finding that [(cod)IrL2]+ and especially [(cod)IrLL′]+ complexes are even more highly active, particularly for highly substituted alkenes. This performance is absent in the classical coordinating solvents then standard in the field but only appears in weakly coordinating solvents like dichloromethane. A special property of the Ir complexes is a pronounced directing effect caused by catalyst binding to substrate functionality, leading to very high diastereoselectivity of the reduction. Asymmetric hydrogenations consistently gave lower ee values for iridium over rhodium, however, so academic work still strongly emphasized Rh. The exceedingly rapid rates of hydrogenation with Ir attracted industrial attention, because rate is such an important factor in that case, and Novartis’ catalytic asymmetric route to the pesticide (S)-Metolachlor employs iridium, even though the ee value is only ca 80%. Leading applications of these and other Ir catalysts up to about 1,990 are also discussed. Work by Pfaltz, Burgess, and Andersson showed how efficient asymmetric Ir catalysts could be made by judicious choice of ligand. Alkane dehydrogenation by reverse hydrogenation also proved possible with Ir catalysts." @default.
- W3150793793 created "2021-04-13" @default.
- W3150793793 creator A5090136280 @default.
- W3150793793 date "2010-11-13" @default.
- W3150793793 modified "2023-10-13" @default.
- W3150793793 title "Introduction and History" @default.
- W3150793793 cites W1971511427 @default.
- W3150793793 cites W1976197833 @default.
- W3150793793 cites W1976745590 @default.
- W3150793793 cites W1984118569 @default.
- W3150793793 cites W1985434587 @default.
- W3150793793 cites W1985837247 @default.
- W3150793793 cites W1990819836 @default.
- W3150793793 cites W1992574888 @default.
- W3150793793 cites W1994179403 @default.
- W3150793793 cites W1995597071 @default.
- W3150793793 cites W2008086922 @default.
- W3150793793 cites W2017449422 @default.
- W3150793793 cites W2018099022 @default.
- W3150793793 cites W2044568919 @default.
- W3150793793 cites W2051462270 @default.
- W3150793793 cites W2063101113 @default.
- W3150793793 cites W2080156182 @default.
- W3150793793 cites W2082039974 @default.
- W3150793793 cites W2085806329 @default.
- W3150793793 cites W2086676618 @default.
- W3150793793 cites W2088782064 @default.
- W3150793793 cites W2090130090 @default.
- W3150793793 cites W2094573081 @default.
- W3150793793 cites W2101826827 @default.
- W3150793793 cites W2105612294 @default.
- W3150793793 cites W2123586116 @default.
- W3150793793 cites W2126054100 @default.
- W3150793793 cites W2147133423 @default.
- W3150793793 cites W2168859204 @default.
- W3150793793 cites W2949873187 @default.
- W3150793793 cites W2952693093 @default.
- W3150793793 cites W3004967212 @default.
- W3150793793 cites W4293281588 @default.
- W3150793793 doi "https://doi.org/10.1007/978-3-642-15334-1_1" @default.
- W3150793793 hasPublicationYear "2010" @default.
- W3150793793 type Work @default.
- W3150793793 sameAs 3150793793 @default.
- W3150793793 citedByCount "12" @default.
- W3150793793 countsByYear W31507937932012 @default.
- W3150793793 countsByYear W31507937932013 @default.
- W3150793793 countsByYear W31507937932015 @default.
- W3150793793 countsByYear W31507937932018 @default.
- W3150793793 crossrefType "book-chapter" @default.
- W3150793793 hasAuthorship W3150793793A5090136280 @default.
- W3150793793 hasConcept C119889771 @default.
- W3150793793 hasConcept C155647269 @default.
- W3150793793 hasConcept C161790260 @default.
- W3150793793 hasConcept C178790620 @default.
- W3150793793 hasConcept C185592680 @default.
- W3150793793 hasConcept C2780400988 @default.
- W3150793793 hasConcept C2780471494 @default.
- W3150793793 hasConcept C521398313 @default.
- W3150793793 hasConcept C528581852 @default.
- W3150793793 hasConceptScore W3150793793C119889771 @default.
- W3150793793 hasConceptScore W3150793793C155647269 @default.
- W3150793793 hasConceptScore W3150793793C161790260 @default.
- W3150793793 hasConceptScore W3150793793C178790620 @default.
- W3150793793 hasConceptScore W3150793793C185592680 @default.
- W3150793793 hasConceptScore W3150793793C2780400988 @default.
- W3150793793 hasConceptScore W3150793793C2780471494 @default.
- W3150793793 hasConceptScore W3150793793C521398313 @default.
- W3150793793 hasConceptScore W3150793793C528581852 @default.
- W3150793793 hasLocation W31507937931 @default.
- W3150793793 hasOpenAccess W3150793793 @default.
- W3150793793 hasPrimaryLocation W31507937931 @default.
- W3150793793 hasRelatedWork W1980883813 @default.
- W3150793793 hasRelatedWork W1996649224 @default.
- W3150793793 hasRelatedWork W2004225503 @default.
- W3150793793 hasRelatedWork W2023237625 @default.
- W3150793793 hasRelatedWork W2041251035 @default.
- W3150793793 hasRelatedWork W2069708019 @default.
- W3150793793 hasRelatedWork W2313504019 @default.
- W3150793793 hasRelatedWork W2944269287 @default.
- W3150793793 hasRelatedWork W2951594134 @default.
- W3150793793 hasRelatedWork W2970246252 @default.
- W3150793793 isParatext "false" @default.
- W3150793793 isRetracted "false" @default.
- W3150793793 magId "3150793793" @default.
- W3150793793 workType "book-chapter" @default.