Many biologically important organic compounds ( sugars and amino acids) possess at least one asymmetric carbon atom and therefore occur in two isomeric forms for the amino acid molecule. 许多对生物重要的有机化合物(糖和氨基酸)存在着至少一种非对称碳原子,并因此使这个氨基酸分子产生了两个同分异构体。
We have made no reference to asymmetric carbon atoms. 我们未曾涉及不对称碳原子。
The components of fructose syrup have the characteristics of optical rotation due to the asymmetric carbon atoms in their molecular structures and can be expressed by optical rotation and specific optical rotation. The content of fructose is analyzed on the basis of the data detected with a polarimeter. 果葡糖浆的成分因分子结构有不对称碳原子而具有旋光特性,可用旋光度、比旋光度表示[1],通过旋光仪测定具体数据,进而分析果糖的含量。
Synthesis and Insecticidal Activity of Silicon containing Asymmetric Thiophosphates and Their Carbon Analogues 含硅不对称硫代磷酸酯及其碳类似物的合成与杀虫活性
Asymmetric construction of quaternary carbon centers and its application to the synthesis of natural products 季碳的不对称构筑法及其在天然产物全合成中的应用
The methods of asymmetric construction of quaternary carbon centers and its applications to the synthesis of natural products have been reviewed. 综述了季碳的不对称构筑法及其在天然产物全合成中的应用。按照合成反应不同,分7类加以介绍。
A new mixing rule for P-R equation of state and correlation and prediction of high-pressure phase equilibria for asymmetric carbon dioxide-alkane systems P-R方程新的混合规则和二氧化碳-烷烃非对称体系高压相平衡关联与预测
The asymmetric conjugate Michael addition is one of the most powerful bond-forming reactions to construct carbon skeletons and simultaneously generate multiple chiral centers. 不对称Michael加成反应是一类非常重要的反应,既可以构建碳碳键,又能够同时产生多个手性中心。