FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2007421025> ?p ?o ?g. }

• W2007421025 endingPage "91" @default.
• W2007421025 startingPage "82" @default.
• W2007421025 abstract "Both (Xantphos)Pd(dba) and Pd(Xantphos)2 were identified in mixtures of Pd2(dba)3 and Xantphos by use of 31P NMR and independent syntheses. At high ligand concentrations, Pd(Xantphos)2 was found to be the predominant species. Reaction calorimetry was employed to determine whether the formation of Pd(Xantphos)2 affects the rate at which the Pd-catalyzed C−N bond formation occurs between 4-tert-butylbromobenzene and morpholine. Indeed, the concentration of Xantphos dramatically influences the activity of the catalyst, with high concentrations of Xantphos inhibiting the reaction rate due to the formation of Pd(Xantphos)2. Two plausible hypotheses for the low activity of Pd(Xantphos)2 as a precatalyst are (1) a slow rate of Xantphos dissociation from Pd(Xantphos)2 inhibits the formation of an active (Xantphos)Pd0 species and (2) the high degree of insolubility of Pd(Xantphos)2 results in the precipitation of a significant fraction of the precatalyst from the reaction mixture. Although the equilibrium constant for ligand dissociation could not be determined by either magnetization transfer or variable-temperature experiments due to its slow rate, the more soluble Pd(4,7-di-tert-butylXantphos)2 complex demonstrated different activity relative to Pd(Xantphos)2. A comprehensive study of these two complexes indicates that the lower activity of the bis-ligated Pd species is a result of a combination of aforementioned processes, i.e., the slow rate of ligand dissociation and the insolubility of Pd(Xantphos)2, with the rate of ligand dissociation serving as the primary turnover-limiting factor." @default.
• W2007421025 created "2016-06-24" @default.
• W2007421025 creator A5010949745 @default.
• W2007421025 creator A5017633411 @default.
• W2007421025 creator A5039233288 @default.
• W2007421025 creator A5062518839 @default.
• W2007421025 date "2005-12-08" @default.
• W2007421025 modified "2023-09-30" @default.
• W2007421025 title "New Insights into Xantphos/Pd-Catalyzed C−N Bond Forming Reactions: A Structural and Kinetic Study" @default.
• W2007421025 cites W1964115352 @default.
• W2007421025 cites W1971149733 @default.
• W2007421025 cites W1972693920 @default.
• W2007421025 cites W1975050200 @default.
• W2007421025 cites W1975394444 @default.
• W2007421025 cites W1979680515 @default.
• W2007421025 cites W1987751510 @default.
• W2007421025 cites W1990625436 @default.
• W2007421025 cites W1992422332 @default.
• W2007421025 cites W2004263788 @default.
• W2007421025 cites W2006121758 @default.
• W2007421025 cites W2009441924 @default.
• W2007421025 cites W2010676355 @default.
• W2007421025 cites W2011088545 @default.
• W2007421025 cites W2014240385 @default.
• W2007421025 cites W2017223027 @default.
• W2007421025 cites W2019734917 @default.
• W2007421025 cites W2022665106 @default.
• W2007421025 cites W2035265176 @default.
• W2007421025 cites W2066356327 @default.
• W2007421025 cites W2120437993 @default.
• W2007421025 cites W2125160925 @default.
• W2007421025 cites W2132426585 @default.
• W2007421025 cites W2168631181 @default.
• W2007421025 cites W2179673921 @default.
• W2007421025 cites W2180432435 @default.
• W2007421025 cites W2331867047 @default.
• W2007421025 cites W2949097009 @default.
• W2007421025 cites W2949278961 @default.
• W2007421025 cites W2952378532 @default.
• W2007421025 cites W3021515054 @default.
• W2007421025 cites W4376848281 @default.
• W2007421025 doi "https://doi.org/10.1021/om050715g" @default.
• W2007421025 hasPublicationYear "2005" @default.
• W2007421025 type Work @default.
• W2007421025 sameAs 2007421025 @default.
• W2007421025 citedByCount "77" @default.
• W2007421025 countsByYear W20074210252012 @default.
• W2007421025 countsByYear W20074210252013 @default.
• W2007421025 countsByYear W20074210252014 @default.
• W2007421025 countsByYear W20074210252015 @default.
• W2007421025 countsByYear W20074210252016 @default.
• W2007421025 countsByYear W20074210252017 @default.
• W2007421025 countsByYear W20074210252018 @default.
• W2007421025 countsByYear W20074210252019 @default.
• W2007421025 countsByYear W20074210252020 @default.
• W2007421025 countsByYear W20074210252021 @default.
• W2007421025 countsByYear W20074210252022 @default.
• W2007421025 crossrefType "journal-article" @default.
• W2007421025 hasAuthorship W2007421025A5010949745 @default.
• W2007421025 hasAuthorship W2007421025A5017633411 @default.
• W2007421025 hasAuthorship W2007421025A5039233288 @default.
• W2007421025 hasAuthorship W2007421025A5062518839 @default.
• W2007421025 hasConcept C102931765 @default.
• W2007421025 hasConcept C116569031 @default.
• W2007421025 hasConcept C155647269 @default.
• W2007421025 hasConcept C161790260 @default.
• W2007421025 hasConcept C170493617 @default.
• W2007421025 hasConcept C178790620 @default.
• W2007421025 hasConcept C185592680 @default.
• W2007421025 hasConcept C2778499101 @default.
• W2007421025 hasConcept C502130503 @default.
• W2007421025 hasConcept C55493867 @default.
• W2007421025 hasConcept C71240020 @default.
• W2007421025 hasConceptScore W2007421025C102931765 @default.
• W2007421025 hasConceptScore W2007421025C116569031 @default.
• W2007421025 hasConceptScore W2007421025C155647269 @default.
• W2007421025 hasConceptScore W2007421025C161790260 @default.
• W2007421025 hasConceptScore W2007421025C170493617 @default.
• W2007421025 hasConceptScore W2007421025C178790620 @default.
• W2007421025 hasConceptScore W2007421025C185592680 @default.
• W2007421025 hasConceptScore W2007421025C2778499101 @default.
• W2007421025 hasConceptScore W2007421025C502130503 @default.
• W2007421025 hasConceptScore W2007421025C55493867 @default.
• W2007421025 hasConceptScore W2007421025C71240020 @default.
• W2007421025 hasIssue "1" @default.
• W2007421025 hasLocation W20074210251 @default.
• W2007421025 hasOpenAccess W2007421025 @default.
• W2007421025 hasPrimaryLocation W20074210251 @default.
• W2007421025 hasRelatedWork W1980377213 @default.
• W2007421025 hasRelatedWork W2175030372 @default.
• W2007421025 hasRelatedWork W2341530064 @default.
• W2007421025 hasRelatedWork W2605525615 @default.
• W2007421025 hasRelatedWork W2605844409 @default.
• W2007421025 hasRelatedWork W2605935158 @default.
• W2007421025 hasRelatedWork W2606106002 @default.
• W2007421025 hasRelatedWork W2606140458 @default.
• W2007421025 hasRelatedWork W2606340465 @default.
• W2007421025 hasRelatedWork W2950450351 @default.

• next