Matches in SemOpenAlex for { <https://semopenalex.org/work/W2318883926> ?p ?o ?g. }
- W2318883926 endingPage "6171" @default.
- W2318883926 startingPage "6162" @default.
- W2318883926 abstract "Complexes with highly reactive stereogenic metal centers are of great interest to asymmetric synthesis. Thus, by reacting [Ni(COD)2] with 2 equiv of the P-alkene ligand (S)-5 ((S)-(+)-N-(3,5-dioxa-4-phosphacyclohepta[2,1-a;3,4-a′]dinaphthalen-4-yl)dibenz[b,f]azepine) or (SP,SC)-6 ((2S,5S)-(-)-N-(aza-3-oxa-2-phosphabicyclo[3.3.0]octan-4-on-2-yl)dibenz[b,f]azepine), the diastereomerically and enantiomerically pure tetrahedral complexes (Δ,S,S)-[Ni(5-κP,η2-alkene)2] (2a) and (Δ,SP,SC,SP′,SC′)-[Ni(6-κP,η2-alkene)2] (2b) were obtained in almost quantitative yields on multigram scales. The Ni atoms showed in both cases stable Δ configurations. Even though these Ni(0) complexes were air stable in the solid state, once dissolved, complex 2a readily activated CS2, alkynes, and enones as the formal d10-ML2 fragment [Ni(5-κP)2] (4) to form adducts 8–11. This is possible thanks to the decoordination of the hemilabile alkene arms of the P-alkene ligands, and the X-ray crystal structures of the CS2 and 4-ethynyltoluene adducts confirmed the η2 coordination modes of the substrates and the concomitant opening up of the alkene arms of ligand 5. The coordination of α,β-unsaturated carbonyl compounds in complexes 11a–c was reversible." @default.
- W2318883926 created "2016-06-24" @default.
- W2318883926 creator A5013888063 @default.
- W2318883926 creator A5033746155 @default.
- W2318883926 creator A5035305002 @default.
- W2318883926 creator A5047356487 @default.
- W2318883926 creator A5054190397 @default.
- W2318883926 creator A5061030398 @default.
- W2318883926 date "2012-08-14" @default.
- W2318883926 modified "2023-09-25" @default.
- W2318883926 title "“Chiral-at-Metal” Hemilabile Nickel Complexes with a Latent d<sup>10</sup>-ML<sub>2</sub> Configuration: Receiving Substrates with Open Arms" @default.
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