Synthesis, spectral and structural studies of alkyl 2-(3-alkyl-2,6-diarylpiperidin-4-ylidene)hydrazinecarboxylate derivatives: Crystal and molecular structure of methyl 2-(3-methyl-2,6-diphenylpiperidin-4-ylidene)hydrazinecarboxylate
作者:C. Udhaya Kumar、A. Sethukumar、M. Velayutham Pillai、B. Arul Prakasam、C. Ramalingan、T. Vidhyasagar
DOI:10.1016/j.molstruc.2016.02.003
日期:2016.5
6-diarylpiperidin-4-ylidene)hydrazinecarboxylates (7–14) is reported. All the synthesized compounds were characterized by their analytical and spectral (IR, 1H, 13C and 2D NMR) data. Single crystal X-ray structural analysis of compound 7, evidences that the configuration about C N double bond is syn to C5 carbon (E-form) and exists in normal chair conformation with equatorial orientations of all the substituents
摘要 报道了一种合成 2-(3-烷基-2,6-二芳基哌啶-4-亚基)肼羧酸烷基酯 (7-14) 的有效合成路线,具有良好的总收率。所有合成的化合物均通过其分析和光谱(IR、1H、13C 和 2D NMR)数据进行表征。化合物 7 的单晶 X 射线结构分析表明,CN 双键的构型与 C5 碳(E 型)同构,并以所有取代基的赤道取向的正常椅子构象存在。