Palladium-Catalyzed Butoxycarbonylation of Polybromo(hetero)arenes: A Practical Method for the Preparation of (Hetero)arenepolycarboxylates and -carboxylic Acids
作者:Baoming Ji、Weilong Wu、Yongkang Jing、Deyi Zhang、Xianghe Yan、Rong Liang、Zhiqiang Lu
DOI:10.1055/a-1587-8859
日期:2022.1
The palladium-catalyzed alkoxycarbonylation of polybromo(hetero)arenes was investigated systematically. The results show that cheap and readily available in situ Pd(OAc)2/rac-BINAP catalyst can catalyze the butoxycarbonylation of various polybromo(hetero)arenes efficiently, and gave (hetero)arenepolycarboxylates with moderate to high yield (59–94%). Using this method, two new compounds, 4,4′-bis(butoxycarbonyl)-1
系统地研究了钯催化的多溴(杂)芳烃的烷氧基羰基化反应。结果表明,廉价且易于获得的原位 Pd(OAc)2/rac-BINAP 催化剂可以有效地催化各种多溴(杂)芳烃的丁氧基羰基化,并以中等至高产率(59-94%)得到(杂)芳烃聚羧酸盐。 . 使用这种方法,报告了两种新化合物 4,4'-双(丁氧基羰基)-1,1'-双-2-萘酚和 [2,2'-联嘧啶]-5,5'-二羧酸二丁酯,用于第一次。此外,通过丁氧基羰基化和水解成功地进行了克级规模的羧酸盐和羧酸的制备。这显示了 Pd(OAc)2/rac-BINAP 催化体系的广泛底物和实际应用。而且,