Matches in SemOpenAlex for { <https://semopenalex.org/work/W2034454619> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2034454619 endingPage "306" @default.
- W2034454619 startingPage "303" @default.
- W2034454619 abstract "The reaction of [RuCl2(pybox)-(C2H4)] (1) (pybox = 2,6-bis[4′S)-isopropyloxazolin-2′-yl]pyridine) and 2,6-di-tert-butyltolyl diazoacetate (4) (DBT-DA) in benzene at 50°C gave a stable 2,6-di-tert-butyltolylcarbonylcarbene-ruthenium complex 5 in 94% yield. The structure of 5 was characterized by NMR spectroscopy. 2,6-Diisopropylphenyl diazoacetate (6) and 2,4,6-trimethylphenyl diazoacetate (7) also gave the corresponding carbene complexes 9 and 10, respectively. Asymmetric carbene transfer from the carbene complexes to styrene resulted in formation of the trans isomer of phenylcyclopropanecarboxylates 2 with high enantioselectivity: 2 was obtained as the sole product in 80% yield (55% ee) from 5 at 80 °C and in 82% yield (97% ee) from 9 at 60°C; from 10 at 40°C, a mixture of 2 and 3 in a ratio of 97:3 was formed in 91% yield (97% ee for 2 and 99% ee for 3). After the carbene transfer reaction, the ethylene complex 1 could be regenerated and isolated by treatment of the reaction mixture under an ethylene atmosphere. The carbene complexes 9 and 10 (2 mol%) exhibited catalytic activity in the asymmetric cyclopropanation of styrene with the corresponding diazoacetates." @default.
- W2034454619 created "2016-06-24" @default.
- W2034454619 creator A5071185233 @default.
- W2034454619 creator A5072962384 @default.
- W2034454619 creator A5077559548 @default.
- W2034454619 date "1996-03-01" @default.
- W2034454619 modified "2023-10-16" @default.
- W2034454619 title "Aryloxycarbonylcarbene Complexes of Bis(oxazolinyl)pyridineruthenium as Active Intermediates in Asymmetric Catalytic Cyclopropanations" @default.
- W2034454619 cites W1998369057 @default.
- W2034454619 cites W2006290001 @default.
- W2034454619 cites W2016798438 @default.
- W2034454619 cites W2048251154 @default.
- W2034454619 cites W2050166845 @default.
- W2034454619 cites W2066982651 @default.
- W2034454619 cites W2077674181 @default.
- W2034454619 cites W2088474661 @default.
- W2034454619 cites W2088550237 @default.
- W2034454619 cites W2299602266 @default.
- W2034454619 cites W2949405571 @default.
- W2034454619 doi "https://doi.org/10.1002/chem.19960020311" @default.
- W2034454619 hasPublicationYear "1996" @default.
- W2034454619 type Work @default.
- W2034454619 sameAs 2034454619 @default.
- W2034454619 citedByCount "101" @default.
- W2034454619 countsByYear W20344546192012 @default.
- W2034454619 countsByYear W20344546192013 @default.
- W2034454619 countsByYear W20344546192014 @default.
- W2034454619 countsByYear W20344546192015 @default.
- W2034454619 countsByYear W20344546192017 @default.
- W2034454619 countsByYear W20344546192018 @default.
- W2034454619 countsByYear W20344546192019 @default.
- W2034454619 countsByYear W20344546192020 @default.
- W2034454619 crossrefType "journal-article" @default.
- W2034454619 hasAuthorship W2034454619A5071185233 @default.
- W2034454619 hasAuthorship W2034454619A5072962384 @default.
- W2034454619 hasAuthorship W2034454619A5077559548 @default.
- W2034454619 hasConcept C134121241 @default.
- W2034454619 hasConcept C155647269 @default.
- W2034454619 hasConcept C15920480 @default.
- W2034454619 hasConcept C161790260 @default.
- W2034454619 hasConcept C178790620 @default.
- W2034454619 hasConcept C185592680 @default.
- W2034454619 hasConcept C191897082 @default.
- W2034454619 hasConcept C192562407 @default.
- W2034454619 hasConcept C2776602925 @default.
- W2034454619 hasConcept C2777052750 @default.
- W2034454619 hasConcept C2777164566 @default.
- W2034454619 hasConcept C2777566558 @default.
- W2034454619 hasConcept C2778597550 @default.
- W2034454619 hasConcept C2779485729 @default.
- W2034454619 hasConcept C521977710 @default.
- W2034454619 hasConceptScore W2034454619C134121241 @default.
- W2034454619 hasConceptScore W2034454619C155647269 @default.
- W2034454619 hasConceptScore W2034454619C15920480 @default.
- W2034454619 hasConceptScore W2034454619C161790260 @default.
- W2034454619 hasConceptScore W2034454619C178790620 @default.
- W2034454619 hasConceptScore W2034454619C185592680 @default.
- W2034454619 hasConceptScore W2034454619C191897082 @default.
- W2034454619 hasConceptScore W2034454619C192562407 @default.
- W2034454619 hasConceptScore W2034454619C2776602925 @default.
- W2034454619 hasConceptScore W2034454619C2777052750 @default.
- W2034454619 hasConceptScore W2034454619C2777164566 @default.
- W2034454619 hasConceptScore W2034454619C2777566558 @default.
- W2034454619 hasConceptScore W2034454619C2778597550 @default.
- W2034454619 hasConceptScore W2034454619C2779485729 @default.
- W2034454619 hasConceptScore W2034454619C521977710 @default.
- W2034454619 hasIssue "3" @default.
- W2034454619 hasLocation W20344546191 @default.
- W2034454619 hasOpenAccess W2034454619 @default.
- W2034454619 hasPrimaryLocation W20344546191 @default.
- W2034454619 hasRelatedWork W1908215753 @default.
- W2034454619 hasRelatedWork W2034037733 @default.
- W2034454619 hasRelatedWork W2048278016 @default.
- W2034454619 hasRelatedWork W2070606975 @default.
- W2034454619 hasRelatedWork W2078502433 @default.
- W2034454619 hasRelatedWork W2095828279 @default.
- W2034454619 hasRelatedWork W2132716721 @default.
- W2034454619 hasRelatedWork W2807292230 @default.
- W2034454619 hasRelatedWork W2950546046 @default.
- W2034454619 hasRelatedWork W2950881692 @default.
- W2034454619 hasVolume "2" @default.
- W2034454619 isParatext "false" @default.
- W2034454619 isRetracted "false" @default.
- W2034454619 magId "2034454619" @default.
- W2034454619 workType "article" @default.