2-(2,4-bis(dimethylamino)benzoyl)-4-(dimethylamino)benzoic acid 、 、 、
乙酸酐 、
N,N,N',N'-四甲基苯-1,3-二胺 在
ice 、
甲苯 作用下,
以
盐酸 为溶剂,
反应 1.0h,
以afforded 3,3-bis(2,4-bis(dimethylamino)phenyl)-5-(dimethylamino)phthalide (I: X=Y2 =Y4 =Z5 =(CH3)2N, Z4 =Z6 =Z7 =H) (m.p. 188°-192° C.)的产率得到3,3-bis(2,4-bis(dimethylamino)phenyl)-5-(dimethylamino)phthalide