中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl (Z)-2-(2-hydroxy-2H-benzo[b][1,4]oxazin-3(4H)-ylidene)acetate | —— | C11H11NO4 | 221.213 |
—— | 1,2,3-Trimethyl (1Z)-3-[(3E)-2-oxo-3,4-dihydro-2H-1,4-benzoxazin-3-ylidene]prop-1-ene-1,2,3-tricarboxylate | —— | C17H15NO8 | 361.3 |
—— | methyl 2-(2-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-3-yl)acetate | 86267-84-7 | C11H11NO4 | 221.213 |
A rapid and efficient protocol for the synthesis of 2-hydroxy-1,4-benzoxazine derivatives has been developed. These intermediates served as precursors for the synthesis of a series of novel butenolide derivatives and 2-amino-1,4-benzoxazine derivatives.