The ester derivatives of salicylic acid and some kinds of anthranilic acid were reduced to corresponding alcohols with sodium borohydride. The reduction behavior of 4-oxo-1, 3-benzodioxanes (IXa-b), 1, 2-dihydro-4-oxo-3, 1-benzoxazines (XIIa-c, e, k) and 4-oxo-3, 1-benzoxazines (XVd-j) were also investigated. These results may be explained in terms of the contribution of the electronic structure of carbonyl group or the neighbouring participation of hydroxyl or amino group.
水杨酸的酯衍
生物和某些类型的
氨基苯酸用
硼氢
钠还原为相应的醇。还研究了4-氧-1,3-苯并
二恶烷(IXa-b)、1,2-二氢-4-氧-3,1-苯并噁嗪(XIIa-c, e, k)和4-氧-3,1-苯并噁嗪(XVd-j)的还原行为。这些结果可以通过碳酰基的电子结构贡献或羟基或
氨基的邻近参与来解释。