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Mechanistic insight into the acid-catalyzed isomerization of biomass-derived polysubstituted pyrrolidines: an experimental and DFT study
(Royal Society of Chemistry, 2017-01)
The 1,3-dipolar cycloaddition reactions of azomethine ylides is one of the preferred methods for the synthesis of polysubstituted pyrrolidines. The use of chiral dipolarophiles derived from carbohydrates yields enantiomerically ...
The addition of allyltrimethylsilane to cyclic N-acyliminium ions derived from (S)-(+)-mandelic acid and cyclohexyl-based chiral auxiliaries
(Soc Brasileira QuimicaSao PauloBrasil, 2001)
Stereospecific Synthesis of Pyrrolidines with Varied Configurations via 1,3-Dipolar Cycloadditions to Sugar-Derived Enones
(American Chemical Society, 2014-05)
Enantiomerically pure pyrrolidines have been obtained by 1,3-dipolar cycloaddition of stabilized azomethine ylides and sugar enones (dihydropyranones) derived from pentoses. Thus, the S-enone (menthyl 3,4-dideoxy-(1S)-pe ...
Inhibition of IL-2 production by novel small molecules using building blocks from reduced chalcones and a substituted proline
(Bentham Science Publishers B.V., 2018)
Synthesis of Highly Substituted and Enantiomerically Pure 2,3,4-Tris(hydroxyalkyl)pyrrolidines Using a 1,3-Dipolar Cycloaddition Reaction as Key Step
(Wiley-Blackwell, 2017-06)
The major endo cycloadducts with a basic structure of methyl 1-aryl-3-(benzyl or methyl)-6-menthyloxy-7-oxooctahydropyrano[4,3-c]pyrrole-3-carboxylate were subjected to simple chemical transformations (mostly reduction and ...
Cladistic relationships in the genus Schizanthus (Solanaceae)
(2002)
The cladistic relationships between Schizanthus species, based primarily on morphology, and chemical characters when available are presented. In this investigation we did not find supporting evidence for the theories ...
Stereoselective Nucleophilic Addition of Potassium Alkyltrifluoroborates to Cyclic N-Acyliminium Ions: a Simple and Mild Approach to Chiral 5-Alkyl-pyrrolidin-2-ones
(CSIRO PUBLISHING, 2009)
The stereoselective nucleophilic addition of potassium alkyltrifluoroborates to cyclic N-acyliminium ions derived from N-benzyl-3,4,5-triacetoxy-pyrrolidin-2-one, which affords 5-substituted-pyrrolidin-2-ones, is described. ...
Stereoselective Nucleophilic Addition of Potassium Alkyltrifluoroborates to Cyclic N-Acyliminium Ions: a Simple and Mild Approach to Chiral 5-Alkyl-pyrrolidin-2-ones
(Csiro Publishing, 2009-01-01)
The stereoselective nucleophilic addition of potassium alkyltrifluoroborates to cyclic N-acyliminium ions derived from N-benzyl-3,4,5-triacetoxy-pyrrolidin-2-one, which affords 5-substituted-pyrrolidin-2-ones, is described. ...
The stereochemistry of the addition of titanium enolates of N-propionyl-oxazolidin-2-ones to 5- and 6-membered N-acyliminium ions
(Pergamon-elsevier Science LtdOxfordInglaterra, 1999)