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作 者:YANG Bo ZHANG Shu-sheng LI Hui-xiang
出 处:《Chemical Research in Chinese Universities》2006年第6期738-741,共4页高等学校化学研究(英文版)
基 金:Supported by the Program for New Century Excellent Talents in University(No. NCET-04-04649);the National Natural Sci-ence Foundation of China(No 20475030);the Start-up Fund for Doctoral Scientific Research of Qingdao University of Science andTechnology.
摘 要:Six novel thiosemicarbazones containing sugar and thiosemicarbazide moieties were synthesized by a five-step procedure using D-galactose and D-xylose as the starting materials and the corresponding glycosyl isothiocyanates as the intermediates. The target compounds were characterized by IR, ^1H NMR, and elemental analysis. The coupliug constants between H1 and H2 in the sugar rings, all fail within the range of J = 9. 2-10.0 Hz, confirming the β-configuration of the compounds.Six novel thiosemicarbazones containing sugar and thiosemicarbazide moieties were synthesized by a five-step procedure using %D%-galactose and %D%-xylose as the starting materials and the corresponding glycosyl isothiocyanates as the intermediates. The target compounds were characterized by IR, {}1H NMR, and elemental analysis. The coupling constants between H1 and H2 in the sugar rings, all fall within the range of J=9.210.0 Hz, confirming the β-configuration of the compounds.
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