亲电子芳族取代是有机化学中最深入研究的反应之一。在本文中,通过在各种溴化剂存在下亲电取代吲哚啉在C-5位置的芳族核,获得了5溴化螺螺芥子醇甲基醚VII,VIII。按照由二氢吲哚合成1-甲氧基螺芥菜籽油甲基醚(V)的顺序,也由5-溴吲哚(IX)制备相同的产物。此外,新的相关5-溴螺吲哚啉衍生物XX–XXIII合成了它们,并检查了它们对人肿瘤细胞系的生物学活性。在C-5位置的吲哚或二氢吲哚骨架中存在溴会导致对白血病细胞系(Jurkat,CEM)的抗癌活性部分提高。新制备的产品的结构通过1 H和13 C NMR光谱测定,包括HSQC,HMBC,COSY,NOESY和DEPT测量。
also prepared from 5-bromoindole (IX) following the sequence for the synthesis 1-methoxyspirobrassinol methyl ether (V) from indoline. In addition, the new related 5-bromospiroindoline derivatives XX–XXIII were synthesised and their biological activity on human tumour cell lines was examined. The presence of bromine in the indole or indoline skeleton at the C-5 position resulted in the partial increase
亲电子芳族取代是有机化学中最深入研究的反应之一。在本文中,通过在各种溴化剂存在下亲电取代吲哚啉在C-5位置的芳族核,获得了5溴化螺螺芥子醇甲基醚VII,VIII。按照由二氢吲哚合成1-甲氧基螺芥菜籽油甲基醚(V)的顺序,也由5-溴吲哚(IX)制备相同的产物。此外,新的相关5-溴螺吲哚啉衍生物XX–XXIII合成了它们,并检查了它们对人肿瘤细胞系的生物学活性。在C-5位置的吲哚或二氢吲哚骨架中存在溴会导致对白血病细胞系(Jurkat,CEM)的抗癌活性部分提高。新制备的产品的结构通过1 H和13 C NMR光谱测定,包括HSQC,HMBC,COSY,NOESY和DEPT测量。
Quantum Mechanical Prediction and Experimental Verification of Au(I)-Catalyzed Substitution-Controlled Syntheses of 1<i>H</i>-Pyrido[4,3-<i>b</i>]indole and Spiro[indoline-3,3′-pyridine] Derivatives
functional theory calculations were applied to predict the pathways of gold(I)-catalyzed cycloisomerization of the indole substrates with 1,6-enynes, which were consistent with the ensuing experimental results. The substitution-controlled synthesis led to the formation of 1H-pyrido[4,3-b]indole and spiro[indoline-3,3′-pyridine] derivatives in a tunable way. The reactions had good functional group tolerances
应用密度泛函理论计算预测了金(I)催化的吲哚底物与 1,6-烯炔的环化异构化途径,这与随后的实验结果一致。取代控制合成导致以可调方式形成 1 H-吡啶并[4,3- b ]吲哚和螺[吲哚啉-3,3'-吡啶]衍生物。该反应具有良好的官能团耐受性,并根据计算和实验结果提出了可能的机理。
Gold(I)-Catalyzed Substitution-Controlled Syntheses of Spiro[indoline-3,3<i>′</i>-pyrrolidine] and Spiro[indoline-3,3<i>′</i>-piperidine] Derivatives
Spiro[indoline-3,3′-pyrrolidine] and spiro[indoline-3,3′-piperidine] derivatives were synthesized in a substitution-controlled manner under the catalysis of cationic gold(I) species in the presence of Hantzschester (HEH). The optimal reaction condition was determined by screening, and the functional group tolerances of these two pathways were examined by readily synthetic substrates. The endo and