CoCl2 catalyzed trifluoroacetylation versus dimerization of methoxyaromatics using trifluoroacetic anhydride
作者:Jaime Ruiz、Didier Astruc、Laurent Gilbert
DOI:10.1016/0040-4039(96)00870-2
日期:1996.6
Anisole, resorcinol dimethyl ether. p.methylanisole, and β-methoxynaphthalene undergo regiospecific trifluoroacetylation in neat trifluoroacetic anhydride (TFAA) at 100 °C in the presence of 0.1 eq. CoCl2 as catalyst: with a 1:1 ratio, only paradimerization of anisole is observed.
苯甲醚,间苯二酚二甲醚。对甲基苯甲醚和β-甲氧基萘在纯的三氟乙酸酐(TFAA)中于0.1 eq。存在下于100°C进行区域特异性三氟乙酰化。CoCl 2作为催化剂:比率为1:1 ,仅观察到苯甲醚的对二聚。