Abstract The 1,3-dipolar cycloaddition (DC) reaction of substituted acenaphthenone-2-ylidine ketone with nitrile imines to obtain the corresponding dihydro-2H-spiro [acenaphthylene-1,3′-pyrazole] cycloadducts in good to excellent yields (up to 92%) with regioselectivity. Nitrile imines were generated from hydrazonoyl chlorides in the presence of triethylamine as a base in dichloromethane solvent. The
摘要 取代的
苊酮-2-
亚胺酮与腈
亚胺的 1,3-偶极环加成 (DC) 反应得到相应的二氢-2 H-螺[
苊-1,3'-
吡唑] 环加合物,产率从良好到优异(最高至 92%) 具有区域选择性。在
三乙胺作为碱的存在下,在
二氯甲烷溶剂中由
肼酰
氯生成腈
亚胺。通过使用光谱数据确定结构和区域
化学并通过单晶X射线衍射分析确认。