SYNTHESIS AND CRYSTAL STRUCTURE OF N-ETHYL-N-CYTISINOCARBOTHIOAMIDE
作者:K. M. Turdybekov、O. A. Nurkenov、D. M. Turdybekov、Zh. B. Satpaeva、S. D. Fazylov
DOI:10.1134/s0022476621110032
日期:2021.11
Abstract Based on (–)-cytisine alkaloid and ethyl isothiocyanate, N-ethyl-N-cytisinocarbothioamide is synthesized and its structure is proved by 1H NMR spectroscopy and single crystal X-ray diffraction. The mesomeric effect is shown in the carbothioamide group formed. It is found that π-conjugation between nitrogen atoms and the thiocarbonyl group is weakened due to the steric hindrance between hydrogen
摘要 以(-)-cytisine生物碱和异硫氰酸乙酯为基础,合成了N-乙基-N-cytisinocarbothioamide,其结构经1 H NMR光谱和单晶X射线衍射证实。在形成的硫代酰胺基团中显示了内消旋效应。发现由于哌啶环的氢原子和硫代酰胺基团之间的位阻,氮原子和硫代羰基之间的π共轭减弱。