Baylis–Hillman carbonates in organic synthesis: a convenient one-pot strategy for nitrone–spiro-oxindole frameworks
摘要:
A facile one-pot protocol for synthesis of nitrone spiro-oxindole frameworks via alkylation of nitromethane with carbonates of Baylis-Hillman alcohols, derived from isatins and cyclohex-2-enone derivatives, followed by reductive cyclization is described. (C) 2013 Elsevier Ltd. All rights reserved.
三种靛红衍生物,即 1-allyl-3-hydroxy-3-(6-oxocyclohex-1-en-1-yl)indolin-2-one, C 17 H 17 NO 3 , 1-ethyl-3-hydroxy- 3-(6-oxocyclohex-1-en-1-yl)indolin-2-one、C 16 H 17 NO 3和 5-bromo-3-hydroxy-1-methyl-3-(6-oxocyclohex-1-) en-1-yl)indolin-2-one, C 15 H 14 BrNO 3 , 合成, 慢蒸发技术结晶, 1 H 和13C NMR光谱,并通过单晶X射线衍射(XRD)方法进行分析。计算了最高占据分子轨道能量、最低未占据分子轨道能量、能隙、电子能、电离势、化学势、整体硬度、整体柔软度和亲电指数等量子化学参数。计算化合物的药物相似性和生物活性评分。这些靛红衍生物对细菌菌株的活