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Domino reactions with fluorinated five-membered heterocycles - Syntheses of trifluoromethyl substituted butenolides and γ-ketoacids
ArticleAbstract: A new approach to trifluoromethyl substituted butenolides and their thioanalogues is described startPalabras claves:2-Fluoro-3-trifluoromethylfurans, 2-Fluoro-3-trifluoromethylthiophenes, Domino reactions, Trifluoromethyl substituted butenolides, α-Trifluoromethyl-γ-keto acidsAutores:Alberício F., Burger K., Fuchs A., Greif D., Hennig L., Jan SpenglerFuentes:googlescopusHexafluoroacetone as a protecting and activating reagent. N- and O-glycosylation of isoserine and isocysteine *
ArticleAbstract: Starting from HFA-protected malic and thiomalic acid a series of O- and N-glycoconjugates suitable fPalabras claves:Glycoconjugates, Glycosylamines, Hexafluoroacetone, Isocyanates, malic acid, Thiomalic acidAutores:Alberício F., Böttcher C., Burger K., Hennig L., Jan SpenglerFuentes:googlescopusHexafluoroacetone as a protecting and activating reagent. Regioselective esterification of aspartic, malic, and thiomalic acid
ArticleAbstract: Hexafluoroacetone reacts with α-functionalized α,β- dicarboxy acids like aspartic, malic, and thiomaPalabras claves:Branched depsipeptides, Branched peptides, Hexafluoroacetone, Peptidomimetics, polyesterAutores:Alberício F., Burger K., Jan Spengler, Pumpor K., Windeisen E.Fuentes:googlescopusHexafluoroacetone as protecting and activating reagent. A new approach to N-glycosides
ArticleAbstract: N-Glycosides of Asn and homologues have been synthesized starting from hexafluoroacetone-protected ωPalabras claves:Dielectrophiles, Hexafluoroacetone, N-Glycopeptides, N-Glycosylamino acids, N-glycosylationAutores:Böttcher C., Burger K., Essawy S.A., Jan SpenglerFuentes:googlescopusHexafluoroacetone as protecting and activating reagent. Glycosylated malic, citramalic, and thiomalic acid derivatives, new glycosylated building blocks for drug design
ArticleAbstract: Glycosylated α-hydroxy and α-mercapto acids have been synthesized starting from malic/citramalic/thiPalabras claves:3-Hydroxysuccinimido sugars, Dielectrophiles, Glycosylamines, Maleimido sugars, N-Glycosylated depsipeptides, α-Hydroxy acids, α-Hydroxyacylamino acids, α-Mercapto acids, α-Mercaptoacylamino acidsAutores:Böttcher C., Burger K., Jan SpenglerFuentes:googlescopusOrthogonally protected, carboxy-activated L-homoisoserine, 2-methyl-L-homoisoserine, and homoisocysteine derivatives. New building blocks for peptide and depsipeptide modification
ArticleAbstract: Starting from L-malic, L-citramalic, and rac. thiomalic acids routes to L-homoisoserine, 2-methyl-L-Palabras claves:Arndt-Eistert reaction, Azapeptides, Citramalic acid, Curtius rearrangement, Depsipeptide modification, Hexafluoroacetone, malic acid, Peptide modification, Thiomalic acid, Wolff rearrangement, α-Hydroxy acids, α-Mercapto acids, γ-Amino acidsAutores:Alberício F., Böttcher C., Burger K., Hennig L., Jan Spengler, Radics G.Fuentes:googlescopusPartially fluorinated heterocycles from 4,4-bis(trifluoromethyl)-hetero-1, 3-dienes via C-F bond activation - Synthesis of 2-fluoro-3-(trifluoromethyl) furans
ArticleAbstract: An efficient synthesis of 2-fluoro-3-(trifluoromethyl)furans was developed. Keystep of the reactionPalabras claves:1-Aryl-4,4-difluoro-3- (trifluoromethyl)but-3-en-1-ones, 3-(Trifluoromethyl)tetrahydrocumaron, Bridged 3-(trifluoromethyl)furans, C-F Bond activation, [4 + 1] CycloadditionAutores:Alberício F., Burger K., Fuchs A., Helmreich B., Hennig L., Jan SpenglerFuentes:scopusSynthesis of derivatives of ω-isocyanato-α-methylamino, ω-ureido-α-methylamino, and N<sup>α</sup>-methyl-α,ω-diamino acids
ArticleAbstract: Homochiral Nα-methyl-2,3-diaminopropionic and Nα-methyl-2,4-diaminobutyric acid derivatives 8a,b werPalabras claves:3-Methylaminopyrrolidin-2-ones, Hexafluoroacetone, N -Methyl-2,3-diaminopropionic acid derivatives and homologues α, ω-Isocyanato-α-methylamino acid derivatives, ω-Ureido-α-methylamino acidsAutores:Burger K., Essawy S.A., Hennig L., Herzschuh R., Jan SpenglerFuentes:googlescopus