New Chiral Auxiliaries For The [3+2]-Cycloaddition Of Nonstabilised Azomethine Ylides [PDF]
The [3+2]-cycloaddition reaction of nonstabilised azomethine ylides to alkenes is a valuable synthetic method for the assembly of functionalised pyrrolidines.
Jensen, Allan Rostrup Forup
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[3+2] Dipolar Cycloaddition of a Stabilized Azomethine Ylide and an Electron-Deficient Dipolarophile: Revision of Regioselectivity. [PDF]
Wu KJY, Benedetto AE, Myers AG.
europepmc +1 more source
Influence of Endo- and Exocyclic Heteroatoms on Stabilities and 1,3-Dipolar Cycloaddition Reactivities of Mesoionic Azomethine Ylides and Imines [PDF]
The geometries, stabilities, and 1,3-dipolar cycloaddition reactivities of 24 mesoionic azomethine ylides and imines were investigated using density functional theory calculations at the M06-2X/6-311+G-(d,p)/M06-2X/6-31G-(d) level.
Champagne, Pier Alexandre, Houk, KN
core +1 more source
Acyl Imidazole : A Promising Template for Asymmetric Lewis and Brønsted Acid Mediated 1,3-Dipolar Cycloadditions [PDF]
Construction of chiral complex molecules continues to be a challenge for organic chemists all over the world and to address this challenge numerous methodologies have been developed.
Rane, Digamber Sadanand
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Topological Woodward-Hoffmann classification for cycloadditions in polycyclic aromatic azomethine ylides [PDF]
The study of cycloaddition mechanisms is central to the fabrication of extended sp2 carbon nanostructures. Reaction modeling in this context has focused mostly on putative, energetically preferred, exothermic products with limited consideration for symmetry allowed or forbidden mechanistic effects.
arxiv
Vicinal quaternary and tertiary stereocenters of the 5,10b-phenanthridine skeleton 1 are constructed simultaneously in one step by the [3+2]-cycloaddition of non-stabilized azomethine ylide 9, generated by sequential double desilylation of 10 utilizing ...
G. Pandey, Nishant R Gupta, S. Gadre
semanticscholar +1 more source
Ex Situ Covalent Functionalization of Germanene via 1,3-Dipolar Cycloaddition:A Promising Approach for the Bandgap Engineering of Group-14 Xenes [PDF]
Group-14 Xenes beyond graphene such as silicene, germanene, and stanene have recently gained a lot of attention for their peculiar electronic properties, which can be tuned by covalent functionalization.
Giousis, Theodosis+9 more
core +1 more source
Synthesis, pharmacokinetics, and biological use of lysine-modified single-walled carbon nanotubes
J Justin Mulvey,1,2 Evan N Feinberg,1,3 Simone Alidori,1 Michael R McDevitt,4,5 Daniel A Heller,1,6 David A Scheinberg1,5,6 1Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY, USA; 2Tri-Institutional MD-PhD Program ...
Mulvey JJ+5 more
doaj
The pyrrolidine nitroxides with four bulky alkyl substituents adjacent to the N–O∙ group demonstrate very high resistance to reduction with biogenic antioxidants and enzymatic systems.
Irina F. Zhurko+4 more
doaj +1 more source
Synthetic and DNA cross-linking studies of bioxalomycinα₂ [PDF]
1999 Fall.Includes bibliographical references.The preparation of a [3 + 2] cycloaddition precursor towards the total synthesis of bioxalomycin α2 is presented. The route contains four key steps.
Herberich, Bradley James
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