The First Chemical Synthesis of 6-Thio-D-fructopyranose via Methyl 6-Bromo-6-deoxy-1,3-O-isopropylidene-α-D-fructofuranoside as a Key Intermediate
摘要:
Selective bromination of sucrose, followed by acetalation with 2,2-dimethoxypropane in 1,4-dioxane in the presence of p-toluenesulfonic acid, afforded methyl 6-bromo-6-deoxy-1,3-O-isopropylidene-alpha-D-fructofuranoside (4). The first chemical synthesis of 6-thio-D-fructopyranose was accomplished from 4 through its 6-S-acetyl-6-thio derivative.
A New Route to Deoxythio sugars Based on Aldolases
作者:Wen-Chih Chou、Lihren Chen、Jim-Min Fang、Chi-Huey Wong
DOI:10.1021/ja00093a018
日期:1994.7
A new route to deoxythiosugars based on aldolases has been developed. Representative syntheses of several thioketoses and 1-deoxy-5-thio-D-glucose, 1-deoxy-5-thio-D-galactose, 1-deoxy-5-thio-L-altrose, 1-deoxy-5-thio-D-mannose, 1-deoxy-5-thio-L-mannose, and 2-deoxy-5-thio-D-ribose are illustrated with the use of fructose 1,6-diphosphate aldolase, fuculose 1-phosphate aldolase, rhamnulose 1-phosphate aldolase, and 2-deoxyribose 5-phosphate aldolase in reaction with an appropriate thioaldehyde, followed by reduction with triethylsilane in the presence of BF3.Et(2)O.
The First Chemical Synthesis of 6-Thio-D-fructopyranose via Methyl 6-Bromo-6-deoxy-1,3-O-isopropylidene-α-D-fructofuranoside as a Key Intermediate
作者:Tadashi Hanaya、Nobuaki Sato、Hiroshi Yamamoto
DOI:10.3987/com-06-10965
日期:——
Selective bromination of sucrose, followed by acetalation with 2,2-dimethoxypropane in 1,4-dioxane in the presence of p-toluenesulfonic acid, afforded methyl 6-bromo-6-deoxy-1,3-O-isopropylidene-alpha-D-fructofuranoside (4). The first chemical synthesis of 6-thio-D-fructopyranose was accomplished from 4 through its 6-S-acetyl-6-thio derivative.
6-thio-β-D-fructopyranose
作者:Marek Chmielewski、Ming-Sheng Chen、Roy L. Whistler