作者:Hatano, Manabu、Kuwano, Kisara、Asukai, Riho、Nagayoshi, Ayako、Hoshihara, Haruka、Hirata, Tsubasa、Umezawa, Miho、Tsubaki, Sahori、Yoshikawa, Takeshi、Sakata, Ken
DOI:10.1039/d4sc01659a
日期:——
In the alkyl addition reaction of aromatic nitriles using Grignard reagents, ketones are formed after hydrolysis. However, this addition reaction is often slow compared to that using reactive organolithium(I) reagents. In this study, we improved the reaction by using zinc(II)ates, which are generated in situ using Grignard reagents and zinc chloride (ZnCl2) as a catalyst. As a result, the corresponding
在使用格氏试剂的芳香腈的烷基加成反应中,水解后形成酮。然而,与使用反应性有机锂( I )试剂的加成反应相比,这种加成反应通常较慢。在本研究中,我们通过使用锌( II )酸盐改进了反应,锌(II)酸盐是使用格氏试剂和氯化锌(ZnCl 2 )作为催化剂原位生成的。结果,在温和的反应条件下,分别通过水解和还原得到了相应的酮和胺,收率良好。还演示了放大反应。有趣的是,使用催化量的ZnCl 2比使用化学计量量的锌( II )酸更有效。根据活性锌( II )物种提出了可能的过渡态,并进行了DFT计算以阐明合理的反应机制。