two ketones is described. This reaction was catalyzed by magnesium bromide and carried out under solvent-free conditions. When the reaction was performed by using 3-substituted anilines and nonsymmetrically substituted ketones, principally a single product was found among the four expected regioisomers. A variety of anilines and ketones, including cyclic ketones, were evaluated providing a series of
描述了通过
苯胺和两个酮之间的多组分反应的1,2-二氢
喹啉的高效和区域选择性合成。该反应用
溴化镁催化,并在无溶剂的条件下进行。当通过使用3-取代的
苯胺和非对称取代的酮进行反应时,在四种预期的区域异构体中主要发现单一产物。对包括环酮在内的各种
苯胺和酮进行了评估,从而提供了一系列具有不同取代方式的1,2-二氢
喹啉。讨论了该机制的研究。有证据表明,在环化杂环之前,由于
苯胺和一种酮之间的反应而导致
亚胺的原位形成。