Under the optimized conditions, the conversion of benzaldehyde is over 90%. The overall yield of m-chlorobenzaldehyde is 79% with 88% selectivity, and there almost is no structural isomer as by products. 苯甲醛的转化率≥90%,间氯苯甲醛的收率≥79%,选择性为88%,氯化产品中基本无同分异构体。
Structural Study of Extraction Complexes of Uranium with Dicyclohexyl-18-crown-6 Isomer A 二环己基-18-冠-6异构体A与铀的萃取配合物的结构研究
At the high cone voltage, both the molecular weight and structural information` were obtained from a single mass spectrum. It can also be used for isomer differentiation and structure determination of ginsenosides. 高锥孔电压的采用能大大提高检测灵敏度,并且得到用于人参皂甙结构鉴定的加合离子和特征碎片离子。