反应详情

According to the same manner as in Example 5, except that 171.6 g of water and 171.6 g of toluene were used in place of 78.9 g of water and 315.5 g of tetrahydrofuran, and that 4-chloroanthranilic acid was used in place of 4,5-dimethoxyanthranilic acid, 80.9 g of 7 -chloroisatoic anhydride (purity: 91 %) was obtained.