【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 sta
【机 构】
:
College of Chemistry and Molecular Engineering
【基金项目】
:
国家自然科学基金;教育部新世纪优秀人才支持计划;The Start-up Fund for Doctoral Scientific Research of Qingdao University of Science and Technology
论文部分内容阅读
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=9.2-10.0 Hz, confirming the β-configuration of the compounds.
其他文献
The title compound, 5-N-I-propyl-2-(2′-nitrobenzenesulfonyl)-glutamine, was synthesized and its structure was confirmed by IR, MS, 1H NMR, and elemental analys
Biomarkers in higher plants played an important role to estimate exposure effects of pollutants in soil ecosystem and have received increasing attention in rece
Dichloromethane is harmful to human health and hazardous to atmospheric environment. In this study, two strains were isolated which were identified as Pseudomon
An emission inventory containing emissions from traffic and other sources was complied. Based on the analysis, Carbon Monoxide (CO) emissions from traffic play
剪接位点的识别是基因识别中的一个重要环节.由于现有的基因识别算法主要关注编码区的整体特性,而并不着重考虑个别位点的信息,因此难以准确地识别出剪接位点.考虑到剪接位点
以四季凤仙的幼嫩茎段为外植体,MS为基本培养基,对四季凤仙的组织培养及快繁技术进行了研究。结果表明:最佳的外植体除菌方式为5%的NaClO处理5min;四季凤仙的最佳不定芽诱导
为探索麝香草酚复合物、中草药和合生素替代抗生素饲养肉鸭的可行性,选择2 400只健康雏鸭,随机分为4组,每组3个重复,每重复200只鸭进行试验.对照组饲喂基础日粮+5 mg/kg黄霉
在大田试验条件下于灌浆期对两种株型的高产玉米品种丰禾1(平展型)及郑单958(紧凑型)的冠层结构特征进行研究,并对灌浆期冠层结构与产量及其构成因素进行相关分析。结果表明:
以无公害落叶浆果类果品标准为评价标准,对浙江省猕猴桃主产区180个猕猴桃样品中农药残留情况进行了分析与评价.结果表明:浙江省猕猴桃农药品种检出率71.4%,样品农药检出率52.
[目的]对烯肟菌酯异构体进行分离以及4个异构体的杀菌活性进行研究。[方法]柱层析法分离异构体,质谱和核磁进行结构鉴定。[结果]确定了烯肟菌酯4个异构体的空间构型,对黄瓜霜