contiguously 1,2,3- and 1,2,3,4-substituted benzamides (Tables 2) are given. The efficient conversion of these benzamides (6, 10, 12, 13, 18, 19) into phthalides (9a–b, 16b–c, 17) and phthalic anhydrides (8, 16a), compounds previously available by demanding, classical methods, is detailed. A short synthesis of iso-ochracinic acid (27) is described.
针对各种直接邻位取代的N,N-二
乙基苯甲
酰胺(表1)和连续的1,2,3-和1,2,3,4-取代
苯甲
酰胺(表2)的定向邻位
金属化的完整实验细节给出。这些
苯甲
酰胺(有效转化6,10,12,13,18,19)成
苯酞(9A-B,图16B-C,17)和
邻苯二甲酸酐(8,16A),化合物先前可用通过要求,经典方法,详细。描述了异och酸的简短合成(27)。