Chiral 1,4-dicarbonyl-2,3-O-isopropylidene derivatives. Rapid racemization on standing

1,4-Dicarbonyl-2,3-chiral derivatives are useful synthetic precursors for the preparation of carbocyclic rings but, in many cases, losses of optical purity have been reported. 1-Deoxy-3,4-O-isopropylidene-6-O-trityl- D-erythro-hexo-2,5-diulose and 1-deoxy-3,4-O-isopropylidene-6-O-(tert- butyldipheny...

Descripción completa

Guardado en:

Detalles Bibliográficos
Publicado:	1999
Materias:	Carbohydrates Epimerization Nucleosides Racemization 1 deoxy 3,4 o isopropylidene 6 o (tert butyldiphenylsilyl)erythrohexo 2,5 diulose 1 deoxy 3,4 o isopropylidene 6 o tritylerythrohexo 2,5 diulose 1,4 dicarbonyl 2,3 o isopropylidene derivative carbonyl derivative lactone derivative ribono 1,4 lactone unclassified drug article chirality drug synthesis priority journal racemic mixture standing
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00404020_v55_n8_p2157_Rodriguez http://hdl.handle.net/20.500.12110/paper_00404020_v55_n8_p2157_Rodriguez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

Ejemplares similares

Chiral 1,4-dicarbonyl-2,3-O-isopropylidene derivatives. Rapid racemization on standing
por: Rodriguez, J.B.

Photoinduced electron-transfer α-deoxygenation of aldonolactones. Efficient synthesis of 2-deoxy-d-arabino-hexono-1,4-lactone
por: Bordoni, Andrea Verónica, et al.
Publicado: (2006)

Photoinduced electron-transfer α-deoxygenation of aldonolactones. Efficient synthesis of 2-deoxy-d-arabino-hexono-1,4-lactone
por: Bordoni, A., et al.

Synthesis and antiviral activity of azoles obtained from carbohydrates
por: Barradas, José Sebastián, et al.
Publicado: (2008)

Synthesis and antiviral activity of azoles obtained from carbohydrates
por: Barradas, J.S., et al.

Cyclic oligomers (macroaldonolactones) from a protected d-galactonic acid monomer
Publicado: (2009)

Cyclic oligomers (macroaldonolactones) from a protected d-galactonic acid monomer
por: Lorena Romero Zaliz, C., et al.

Synthesis of 2,3-di-O-(β-D-Galp)-D-Galp, a synthon for the mucinoligosaccharides of Trypanosoma cruzi
Publicado: (2003)

Synthesis of 2,3-di-O-(β-D-Galp)-D-Galp, a synthon for the mucinoligosaccharides of Trypanosoma cruzi
por: Mendoza, V.M., et al.

Deprotection of di-O-isopropylidene isocarbonucleosides
Publicado: (2003)

Deprotection of di-O-isopropylidene isocarbonucleosides
por: Martínez Esperón, M.F., et al.

Differential O-3/O-4 regioselectivity in the glycosylation of α and β anomers of 6-O-substituted N-dimethylmaleoyl-protected d-glucosamine acceptors
por: Stortz, Carlos Arturo
Publicado: (2007)

Differential O-3/O-4 regioselectivity in the glycosylation of α and β anomers of 6-O-substituted N-dimethylmaleoyl-protected d-glucosamine acceptors
por: Bohn, M.L., et al.

Synthesis and antiviral evaluation of some carbonucleoside analogues
Publicado: (2005)

Synthesis and antiviral evaluation of some carbonucleoside analogues
por: Martins Alho, M.A., et al.

Straightforward synthesis of derivatives of D- and L-galactonic acids as precursors of stereoregular polymers
Publicado: (2003)

Straightforward synthesis of derivatives of D- and L-galactonic acids as precursors of stereoregular polymers
por: Romero Zaliz, C.L., et al.

Differential effect of heterocyclic d-ribofuranoside derivatives on human prostate cancer cell viability and cell cycle progression
por: Gueron, Geraldine, et al.
Publicado: (2014)

Differential effect of heterocyclic d-ribofuranoside derivatives on human prostate cancer cell viability and cell cycle progression
por: Gueron, G., et al.

Synthesis and characterization of some heterocyclic derivatives from 1,2:3,4-di-O-isopropylidene-α-D-galacto-1,6-hexadialdo-1,5-pyranose oxime
por: Martins Alho, Miriam Amelia, et al.
Publicado: (1999)

Synthesis and characterization of some heterocyclic derivatives from 1,2:3,4-di-O-isopropylidene-α-D-galacto-1,6-hexadialdo-1,5-pyranose oxime
por: Martins Alho, M.A., et al.

Imidazo[2,1-b]thiazole carbohydrate derivatives: Synthesis and antiviral activity against Junin virus, agent of Argentine hemorrhagic fever
por: Barradas, José Sebastián, et al.
Publicado: (2011)

Imidazo[2,1-b]thiazole carbohydrate derivatives: Synthesis and antiviral activity against Junin virus, agent of Argentine hemorrhagic fever
por: Barradas, J.S., et al.

Synthetic studies toward the preparation of (4R,5R)-(-)-3-[(benzyloxy) methyl]-4,5-O-isopropylidene-cyclopenten-2-one: An important synthetic intermediate for carbanucleosides
por: Elhalem, Eleonora, et al.
Publicado: (2005)

Synthetic studies toward the preparation of (4R,5R)-(-)-3-[(benzyloxy) methyl]-4,5-O-isopropylidene-cyclopenten-2-one: An important synthetic intermediate for carbanucleosides
por: Elhalem, E., et al.

Facile synthesis of a d-galactono-1,6-lactone derivative, a precursor of a copolyester
por: Romero Zaliz, Carmen Lorena, et al.
Publicado: (2006)

Facile synthesis of a d-galactono-1,6-lactone derivative, a precursor of a copolyester
por: Romero Zaliz, C.L., et al.

Enantiospecific synthesis of the sugar amino acid (2S,5S)-5-(aminomethyl)- tetrahydrofuran-2-carboxylic acid
Publicado: (2010)

Enantiospecific synthesis of the sugar amino acid (2S,5S)-5-(aminomethyl)- tetrahydrofuran-2-carboxylic acid
por: Uhrig, M.L., et al.

Synthesis of furanose derivatives of 3-deoxy-D-erythro-2-hexulosonic acid and their 3-bromo and 3-deuterio analogs
por: Di Nardo, Christián Esteban, et al.
Publicado: (2000)

Synthesis of furanose derivatives of 3-deoxy-D-erythro-2-hexulosonic acid and their 3-bromo and 3-deuterio analogs
por: Di Nardo, C., et al.

1,2,4-Triazole d-ribose derivatives: Design, synthesis and antitumoral evaluation
por: Fascio, Mirta Liliana, et al.
Publicado: (2012)

1,2,4-Triazole d-ribose derivatives: Design, synthesis and antitumoral evaluation
por: Avanzo, R.E., et al.

Synthesis and properties of (2′S)- and (2′R)-2′-deoxy-2′-C-methyl oligonucleotides
Publicado: (2001)

Synthesis and properties of (2′S)- and (2′R)-2′-deoxy-2′-C-methyl oligonucleotides
por: Cicero, D.O., et al.

Evaluación del efecto genotóxico de quinonas mediante el ensayo de micronúcleos
por: Ferrato, Estela, et al.
Publicado: (1994)

Synthesis and characterization of some N-heterocyclic carbohydrate derivatives
Publicado: (2000)

Synthesis and characterization of some N-heterocyclic carbohydrate derivatives
por: Alho, M.A.M., et al.

Influence of the solvent in low temperature glycosylations with O-(2,3,5,6-tetra-O-benzyl-β-d-galactofuranosyl) trichloroacetimidate for 1,2-cis α-d-galactofuranosylation
Publicado: (2011)

Influence of the solvent in low temperature glycosylations with O-(2,3,5,6-tetra-O-benzyl-β-d-galactofuranosyl) trichloroacetimidate for 1,2-cis α-d-galactofuranosylation
por: Gola, G., et al.