1991
DOI: 10.1139/v91-121
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Carbohydrate protein interactions. Syntheses of agglutination inhibitors of wheat germ agglutinin by phase transfer catalysis

Abstract: , 817 (1991). Starting from chloride 1, a series of para-substituted aryl 2-acetamido-2-deoxy-P-D-glucopyranosides were prepared using phase transfer catalysis conditions with tetrabutylammonium hydrogen sulfate in 1 M sodium hydroxide and methylene chloride at room temperature. ZemplCn de-0-acetylation afforded the unprotected glycosides. Optimization of reaction conditions was evaluated. Several functional group manipulations were effected to widen the number and nature of the para-substituents.

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Cited by 50 publications
(19 citation statements)
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“…Compounds 1 and 2, [36] 3 and 4, [37] 5±7 [38] and D±I [38] were synthesised according to literature procedures. 1 H and 13 C NMR spectra were recorded using a Bruker AC200 spectrometer at 298 K. Mass spectra were determined by the Service de Spectromÿtrie de Masse at the Institut de Chimie, Universitÿ Louis Pasteur.…”
Section: Methodsmentioning
confidence: 99%
“…Compounds 1 and 2, [36] 3 and 4, [37] 5±7 [38] and D±I [38] were synthesised according to literature procedures. 1 H and 13 C NMR spectra were recorded using a Bruker AC200 spectrometer at 298 K. Mass spectra were determined by the Service de Spectromÿtrie de Masse at the Institut de Chimie, Universitÿ Louis Pasteur.…”
Section: Methodsmentioning
confidence: 99%
“…Materials: 4-Iodophenyl 3,4,6,-tri-O-acetyl-2-N-acetyl-b-d-glucopyranoside, [42] [43] methyl (4-iodophenyl 5-acetamido-4,7,8,9-tetra-O-acetyl-3,5-dideoxy-dglycero-a-d-galacto-2-nonulopyranosid)onate, [44] and [45] were synthesized by previously reported methods. Trimethylsilylacetylene was kindly supplied by Shinetsu Chemical Co. and was used without further purification.…”
mentioning
confidence: 99%
“…Nessas condições, forma-se, inicialmente, o derivado peracetilado correspondente que, por reação com cloreto de hidrogênio, produzido in situ fornece 3 22 . Em seguida, 3 foi convertido nos glicosídeos 4 e 10, por reação com o fenol correspondente, na presença de hidróxido de sódio, em condições de transferência de fase 23 , com rendimentos de 39 e 60%, respectivamente. Os glicosídeos 5 e 11 foram obtidos a partir de 4 e 10 por reação de transesterificação com metóxido de sódio em metanol 24 , ambos com rendimento quantitativo.…”
Section: Resultados E Discussão Sínteseunclassified