Synthesis, stereochemical, structural and biological studies of some 2,6-diarylpiperidin-4-one N(4′)-cyclohexyl thiosemicarbazones
作者:A. Sethukumar、C. Udhaya Kumar、R. Agilandeshwari、B. Arul Prakasam
DOI:10.1016/j.molstruc.2013.05.008
日期:2013.9
Abstract A new series of 2,6-diarylpiperidin-4-one N(4′)-cyclohexyl thiosemicarbazones (13–23) were synthesized by corresponding 2,6-diarylpiperidin-4-ones (1–11) reaction with cyclohexyl thiosemicarbazide (12). The chemical structures were confirmed by means of IR, one and two dimensional NMR, Mass spectra and single crystal X-ray diffraction analysis. Compounds 13–23, exist in chair conformation
摘要 通过相应的 2,6-二芳基哌啶-4-酮 (1-11) 与环己基氨基硫脲 (Semicarbazide) 反应合成了一系列新的 2,6-二芳基哌啶-4-one N(4')-环己基缩氨基硫脲 (13-23)。 12)。通过红外、一维和二维核磁共振、质谱和单晶X射线衍射分析证实了化学结构。化合物 13-23 以椅子构象存在,除化合物 21-23 的 C-5 处的甲基外,所有哌啶环上的取代基均呈赤道取向,以轴向排列以稳定椅子构象。化合物 18 的单晶 X 射线结构分析,证明 CN 双键的构型与 C-5 碳(E 型)同构。对所有合成的化合物进行了生物活性筛选。