申请人:Ueno Yoshikazu
公开号:US20050215796A1
公开(公告)日:2005-09-29
A process for the preparation of 1,2-benzisoxazole-3-methane-sulfonamide without isolation of intermediates in solid form, by using 4-hydroxycoumarin as a starting compound, and water and 1,2-dichloro-ethane as solvents; and an industrially useful process for the preparation of 1,2-benzisoxazole-3-acetic acid, by reacting 4-hydroxycoumarin and hydroxylamine in water.
一种制备1,2-苯并异噁唑-3-甲磺酰胺的工艺,不需要固体中间体的分离,使用4-羟基香豆素作为起始化合物,以水和1,2-二氯乙烷作为溶剂;以及一种工业上有用的制备1,2-苯并异噁唑-3-乙酸的工艺,通过在水中反应4-羟基香豆素和羟胺。