Construction of enantiopure pyrrolidine ring system via asymmetric [3+ 2]-cycloaddition of azomethine ylides
G Pandey, P Banerjee, SR Gadre - Chemical reviews, 2006 - ACS Publications
1, 3-Dipolar cycloaddition reactions are fundamental processes in organic chemistry, 1 and
their asymmetric version offers a powerful and reliable synthetic methodology to access five …
their asymmetric version offers a powerful and reliable synthetic methodology to access five …
Silver-mediated synthesis of heterocycles
M Alvarez-Corral, M Munoz-Dorado… - Chemical …, 2008 - ACS Publications
Heterocyclic synthesis involving transition metal complexes has become of common use in
the past decade because a transition-metal-catalyzed reaction can directly build …
the past decade because a transition-metal-catalyzed reaction can directly build …
Azomethine ylides in organic synthesis
C Najera, JM Sansano - Current Organic Chemistry, 2003 - benthamdirect.com
This review will attempt to cover the literatures published from 1988 dealing with cyclic and
acyclic azomethine ylides in which a part or the whole of the ylide conjugation is included in …
acyclic azomethine ylides in which a part or the whole of the ylide conjugation is included in …
Catalytic asymmetric [3+ 2] cycloaddition of azomethine ylides. Development of a versatile stepwise, three-component reaction for diversity-oriented synthesis
C Chen, X Li, SL Schreiber - Journal of the American Chemical …, 2003 - ACS Publications
We report a new catalyst system that should enhance the use of enantioselective 1, 3-
dipolar cycloadditions of azomethine ylides with electronic-deficient olefins in the divergent …
dipolar cycloadditions of azomethine ylides with electronic-deficient olefins in the divergent …
Synthesis of 2, 5-disubstituted pyrrolidines
M Pichon, B Figadère - Tetrahedron: Asymmetry, 1996 - Elsevier
Pyrrolidines, the 5 membered aza-heterocycles, substituted at the 2 and 5 positions, are very
often encountered in the living organisms. Since the 1970's where the first pyrrolidinic …
often encountered in the living organisms. Since the 1970's where the first pyrrolidinic …
Origins of the loss of concertedness in pericyclic reactions: Theoretical prediction and direct observation of stepwise mechanisms in [3+ 2] thermal cycloadditions
S Vivanco, B Lecea, A Arrieta, P Prieto… - Journal of the …, 2000 - ACS Publications
Several [3+ 2] thermal cycloadditions between azomethine ylides and nitroalkenes have
been studied both theoretically and experimentally. When the N-metalated 1, 3-dipoles are …
been studied both theoretically and experimentally. When the N-metalated 1, 3-dipoles are …
Stereocontrolled synthesis of highly substituted proline esters via [3+ 2] cycloaddition between N-metalated azomethine ylides and nitroalkenes. Origins of the metal …
M Ayerbe, A Arrieta, FP Cossío… - The Journal of Organic …, 1998 - ACS Publications
The [3+ 2] cycloaddition reaction between several N-metalated azomethine ylides and
nitroalkenes has been studied using AgOAc and LiClO4 as metalating reagents in the …
nitroalkenes has been studied using AgOAc and LiClO4 as metalating reagents in the …
A New Anti-HIV Alkaloid, Drymaritin, and a New C-Glycoside Flavonoid, Diandraflavone, from Drymaria diandra
A novel anti-HIV alkaloid, drymaritin (1), and a new C-glycoside flavonoid, diandraflavone
(2), along with eight known compounds, torosaflavone A, isovitexin, spinasterol β-d …
(2), along with eight known compounds, torosaflavone A, isovitexin, spinasterol β-d …
A convenient procedure for the catalytic asymmetric 1, 3-dipolar cycloaddition of azomethine ylides and alkenes
C Alemparte, G Blay, KA Jørgensen - Organic Letters, 2005 - ACS Publications
Silver fluoride and cinchona alkaloids catalyze the diastereo-and enantioselective 1, 3-
dipolar cycloaddition between azomethine ylides, generated from N-alkylideneglycine …
dipolar cycloaddition between azomethine ylides, generated from N-alkylideneglycine …
[PDF][PDF] Synthesis of highly substituted nitropyrrolidines, nitropyrrolizines and nitropyrroles via multicomponent-multistep sequences within a flow reactor
M Baumann, IR Baxendale… - …, 2011 - baxendalegroup.awh.durham.ac.uk
We expand upon recent results concerning dipolar cycloaddition reactions of unstabilized
azomethine ylids with nitro alkenes to generate 3-nitropyrrolidines via a flow chemistry …
azomethine ylids with nitro alkenes to generate 3-nitropyrrolidines via a flow chemistry …