A New Organocatalytic Process of Cyclotrimerization of Acetylenic Ketones Mediated by 2,4-Pentanedione
作者:Song Xue、Qing-Fa Zhou、Fei Yang、Qing-Xiang Guo
DOI:10.1055/s-2007-967997
日期:2007.2
organocatalytic process of cyclotrimerization of the aliphatic and aromatic acetylenic ketones was developed. The reaction catalyzed by DMAP in the presence of 2,4-pentanedione gave 1,3,5-trisubstituted benzenes in almost quantitative yields under very mild conditions. 2,4-Pentanedione was used as a cocatalyst to promote the reaction efficiently, particularly for aliphatic acetylenic ketones.
开发了一种新的脂肪族和芳香族炔酮环三聚的有机催化工艺。在 2,4-戊二酮存在下由 DMAP 催化的反应在非常温和的条件下以几乎定量的产率得到 1,3,5-三取代苯。2,4-戊二酮用作助催化剂以有效促进反应,特别是对于脂肪族炔酮。