申请人:KINGCHEM LIFE SCIENCE LLC
公开号:US10611745B2
公开(公告)日:2020-04-07
The disclosure provides a simple and efficient method for producing a compound of Formula I. The method includes treating an N-substituted-4-nitro-phthalimide of Formula VII with sodium or potassium phenoxide to form an N-substituted-4-phenoxy-phthalimide of Formula VIII and then treating the N-substituted-4-phenoxy-phthalimide of Formula VIII with, for example zinc, in the presence of a base to give 5-phenoxy-1(3H)-isobenzofuranone of Formula I, its isomer of 6-phenoxy-1 (3H)-isobenzofuranone of Formula Ia, and alkyl amine or aryl amine NH2R (Formula IX)
本公开提供了一种生产式 I 化合物的简单而有效的方法。该方法包括用氧化钠或氧化钾处理式 VII 的 N-取代-4-硝基邻苯二甲酰亚胺,形成式 VIII 的 N-取代-4-苯氧基邻苯二甲酰亚胺,然后用例如锌,在碱存在下,得到式 I 的 5-苯氧基-1(3H)-异苯并呋喃酮、其异构体式 Ia 的 6-苯氧基-1(3H)-异苯并呋喃酮和烷基胺或芳基胺 NH2R(式 IX)