Matches in SemOpenAlex for { <https://semopenalex.org/work/W1996218636> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W1996218636 endingPage "1439" @default.
- W1996218636 startingPage "1432" @default.
- W1996218636 abstract "The allylic palladium complexes (1L, for allyl = η3-C3H5; 2L, for allyl = η3-1,3-Ph2C3H3) with chiral 1,2-bis(oxazolinyl)benzene and 1,2-bis(oxazolinyl)ethane ligands L, (R,R)-A, (R,S)-A, (S,S)-B, (R,R)-C, and (S,S)-D, were synthesized and fully characterized, both in solution and in the solid state. Five crystal structures of palladium allyl complexes are described, three of them containing the non-substituted allyl group, (R,S)-1A, (S,S)-1B, and (S,S)-1D, and two containing the 1,3-diphenylallyl group, (R,S)-2A and (S,S)-2B. A NMR study showed the existence of two isomers in solution for complexes containing 1,2-bis(oxazolinyl)benzene, endo and exo, with the diasteromeric excess of ca. 40% for type 1 complexes and ca. 75% for type 2 complexes. The catalytic behaviour of the palladium systems with the ligands described was tested for a model allylic alkylation reaction. The Pd/bis(oxazolinyl)benzene ((R,R)-A, (S,S)-B) catalytic systems showed low activity, but good asymmetric inductions, affording enantiomeric excesses up to 86%. However, the Pd/bis(oxazolinyl)ethane systems exhibited lower activity and worse enantioselectivity than for the analogous catalysts containing the rigid phenyl backbone. Stoichiometric reactions, modelling the nucleophilic attack step of the catalytic cycle, from palladium(II) (2L) complexes, led to lower enantiomeric excesses than under catalytic conditions." @default.
- W1996218636 created "2016-06-24" @default.
- W1996218636 creator A5005498548 @default.
- W1996218636 creator A5018178541 @default.
- W1996218636 creator A5020163583 @default.
- W1996218636 creator A5030477055 @default.
- W1996218636 creator A5052815182 @default.
- W1996218636 creator A5057728857 @default.
- W1996218636 creator A5061420118 @default.
- W1996218636 date "2001-01-01" @default.
- W1996218636 modified "2023-10-18" @default.
- W1996218636 title "Palladium complexes containing bis(oxazolines): stoichiometric versus catalytic allylic alkylation" @default.
- W1996218636 cites W1967665150 @default.
- W1996218636 cites W1970262466 @default.
- W1996218636 cites W1972829104 @default.
- W1996218636 cites W1988141501 @default.
- W1996218636 cites W1988454253 @default.
- W1996218636 cites W2023497659 @default.
- W1996218636 cites W2038438602 @default.
- W1996218636 cites W2040599709 @default.
- W1996218636 cites W2066982651 @default.
- W1996218636 cites W2088550237 @default.
- W1996218636 cites W2094904933 @default.
- W1996218636 cites W2105422162 @default.
- W1996218636 cites W2128179591 @default.
- W1996218636 cites W2144332006 @default.
- W1996218636 cites W2144808448 @default.
- W1996218636 cites W2148951767 @default.
- W1996218636 doi "https://doi.org/10.1039/b007743g" @default.
- W1996218636 hasPublicationYear "2001" @default.
- W1996218636 type Work @default.
- W1996218636 sameAs 1996218636 @default.
- W1996218636 citedByCount "13" @default.
- W1996218636 countsByYear W19962186362014 @default.
- W1996218636 countsByYear W19962186362016 @default.
- W1996218636 crossrefType "journal-article" @default.
- W1996218636 hasAuthorship W1996218636A5005498548 @default.
- W1996218636 hasAuthorship W1996218636A5018178541 @default.
- W1996218636 hasAuthorship W1996218636A5020163583 @default.
- W1996218636 hasAuthorship W1996218636A5030477055 @default.
- W1996218636 hasAuthorship W1996218636A5052815182 @default.
- W1996218636 hasAuthorship W1996218636A5057728857 @default.
- W1996218636 hasAuthorship W1996218636A5061420118 @default.
- W1996218636 hasConcept C120095180 @default.
- W1996218636 hasConcept C144082473 @default.
- W1996218636 hasConcept C155647269 @default.
- W1996218636 hasConcept C161790260 @default.
- W1996218636 hasConcept C164361826 @default.
- W1996218636 hasConcept C178790620 @default.
- W1996218636 hasConcept C178907741 @default.
- W1996218636 hasConcept C185592680 @default.
- W1996218636 hasConcept C27083343 @default.
- W1996218636 hasConcept C2777691172 @default.
- W1996218636 hasConcept C486523 @default.
- W1996218636 hasConcept C502130503 @default.
- W1996218636 hasConcept C71240020 @default.
- W1996218636 hasConceptScore W1996218636C120095180 @default.
- W1996218636 hasConceptScore W1996218636C144082473 @default.
- W1996218636 hasConceptScore W1996218636C155647269 @default.
- W1996218636 hasConceptScore W1996218636C161790260 @default.
- W1996218636 hasConceptScore W1996218636C164361826 @default.
- W1996218636 hasConceptScore W1996218636C178790620 @default.
- W1996218636 hasConceptScore W1996218636C178907741 @default.
- W1996218636 hasConceptScore W1996218636C185592680 @default.
- W1996218636 hasConceptScore W1996218636C27083343 @default.
- W1996218636 hasConceptScore W1996218636C2777691172 @default.
- W1996218636 hasConceptScore W1996218636C486523 @default.
- W1996218636 hasConceptScore W1996218636C502130503 @default.
- W1996218636 hasConceptScore W1996218636C71240020 @default.
- W1996218636 hasIssue "9" @default.
- W1996218636 hasLocation W19962186361 @default.
- W1996218636 hasOpenAccess W1996218636 @default.
- W1996218636 hasPrimaryLocation W19962186361 @default.
- W1996218636 hasRelatedWork W1591786020 @default.
- W1996218636 hasRelatedWork W2014584017 @default.
- W1996218636 hasRelatedWork W2021096882 @default.
- W1996218636 hasRelatedWork W2034082393 @default.
- W1996218636 hasRelatedWork W2046056641 @default.
- W1996218636 hasRelatedWork W2052368849 @default.
- W1996218636 hasRelatedWork W2063112150 @default.
- W1996218636 hasRelatedWork W2381450934 @default.
- W1996218636 hasRelatedWork W2747306772 @default.
- W1996218636 hasRelatedWork W2951550788 @default.
- W1996218636 isParatext "false" @default.
- W1996218636 isRetracted "false" @default.
- W1996218636 magId "1996218636" @default.
- W1996218636 workType "article" @default.