Abstract Hydroxynaphthyl ketones were obtained with high yields under very mild conditions in the presence of AlCl3 via Friedel–Crafts acylation and demethylation from naphthyl ethers. Several Lewis acids were tested, and AlCl3 was the most efficient catalyst.
Ytterbium triflate catalysed Friedel–Crafts reaction using carboxylic acids as acylating reagents under solvent-free conditions
作者:Can Jin、Jie Li、Weike Su
DOI:10.3184/030823409x12511347683523
日期:2009.10
The Friedel–Crafts acylation of 1-naphthol and phenol derivatives with carboxylic acids were investigated by using a catalytic amount of metal-triflate, in particular Yb(OTf)3, undersolvent-freeconditions. Both aliphatic and aromatic carboxylic acids reacted easily to afford the corresponding hydroxyaryl ketones.
Leveraging Nonstrained C–C Bonds for Selective Carboacylation of an Unactivated Alkyne via Transient Dearomatization
作者:Jiamin He、Tongxiang Cao、Kai Chen、Shifa Zhu
DOI:10.1021/acs.orglett.4c00608
日期:2024.4.5
Carboacylation of an unsaturated bond represents a powerful transformation. However, only a few examples of carboacylation of alkyne have been reported through C–C bond scission and reconnection. Here, we report a method of carboacylation of an unactivated alkyne by utilizing nonstrained C–C bonds under gold(I) catalysis. The density functional theory computational and experimental studies reveal that
不饱和键的碳酰化代表了强大的转变。然而,仅报道了少数通过C-C键断裂和重新连接进行炔烃碳酰化的例子。在这里,我们报道了一种在金(I)催化下利用非张力 C-C 键对未活化的炔烃进行碳酰化的方法。密度泛函理论计算和实验研究表明,该反应通过溶剂笼嵌套酰基阳离子从 C 到 C 的形式 1,3-酰基迁移进行。
Chapiro, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1952, vol. 234, p. 966
作者:Chapiro
DOI:——
日期:——
Nakazawa; Tsubouchi, Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1954, vol. 74, p. 1256