James M. Longmire
Pennsylvania State University
11 Papers
129 Citations
James M. Longmire is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Enantioselective synthesis & Catalysis. The author has an hindex of 7, co-authored 11 publications.
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Papers
Highly Enantioselective Ag(I)-Catalyzed [3 + 2] Cycloaddition of Azomethine Ylides
TL;DR: It is found that high enantioselectivities have been achieved in the [3 + 2] cycloaddition of azomethine ylides and a new bis-ferrocenyl amide phosphine (FAP) as the ligand is used.
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Synthesis of chiral bisphosphines with tunable bite angles and their applications in asymmetric hydrogenation of beta-ketoesters.
TL;DR: A strategy to restrict sp2-sp2 rotation in chiral biaryl ligands such as BINAP,2 BIPHEMP,3 and MeO-BIPHEP3 will be useful in generating new chiral ligands with tunable bite angles and the correlation of bite angles of chiral chelating phosphines with the enantioselectivity of a reaction may provide significant insights for future ligand design.
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Synthesis and X-ray Crystal Structures of Palladium(II) and Platinum(II) Complexes of the PCP-Type Chiral Tridentate Ligand (1R,1‘R)-1,3-Bis[1-(diphenylphosphino)ethyl]benzene. Use in the Asymmetric Aldol Reaction of Methyl Isocyanoacetate and Aldehydes
TL;DR: In this article, a chiral PCP-type ligand with PdCl2(PhCN)2 and [Pt2(μ-Cl)2(η3-CH2C(CH3)CH2)2] was obtained for the first time and their X-ray crystal structures were determined.
213
Highly efficient kinetic resolution of 2-cyclohexenyl acetate in Pd-catalyzed allylic alkylation
TL;DR: In this article, a new phosphine ligand has been synthesized and employed in the Pd-catalyzed alkylation of 2-cyclohexenyl esters.
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Synthesis of chiral phosphine ligands with aromatic backbones and their applications in asymmetric catalysis
James M. Longmire,Xumu Zhang +1 more
TL;DR: In this paper, a general strategy for the synthesis of chiral phosphine ligands has been discovered, and moderate selectivity has been realized in the reaction between 1,3-diphenyl-2-propenyl acetate and dimethyl malonate using palladium complexes of these ligands.
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