作者:A. O. Fitton、M. P. Ward
DOI:10.1039/j39710000146
日期:——
The synthesis of several 3,4-dihydro-4-oxo-2H-1,3-benzoxazine-carboxylic acids is described. The acids resulted from hydrogen carbonate hydrolysis of their corresponding esters which were prepared by condensation of salicylamide with various aldehydes and ketones. The use of certain aromatic aldehydes and ketones containing an ortho-carboxy-function led to isoindolobenzoxazine structures.
描述了几种3,4-二氢-4-氧代-2 H -1,3-苯并恶嗪-羧酸的合成。酸是由碳酸氢盐水解其相应的酯产生的,这些酯是通过水杨酰胺与各种醛和酮的缩合反应制得的。某些含有邻羧基官能团的芳族醛和酮的使用导致异吲哚并苯并恶嗪结构。