6Yoshiharu F, Hajime K, Katsuhiko T. Process for Producing 3,3 - Bis - ( 4 - dimethy ( aminophony ) - 6 - dimethyaminophthalide [ P 1. US4845245. 1989 被引量:1
7Kawai H ,Fujino Y ,Tsunemisu K. Process for Producing 3,3 - Bis - (4 - dimethylam inophenyl) - 6 - dimethylam Inophthalide [ P]. EP0291600.1988 被引量:1
8F Zhu,A B Wu. Studies on the Synthesis and Thermochromic Properties of Crystal VioletLactone and Its Reversible Thermochromic Complexes [ J ]. 2005,425 ( 1/2 ): 7 - 12 被引量:1
9Kawai H, Fujino Y, Tsunemisu K. Process for Producing 2 - (4,4, - Bis - (dimethylamino) - benzhydryl ) - 5 - dimethyl - aminobenzoic acid[ P]. EP0373151. 1990 被引量:1
10Nishimura T, Nakao S, Wada M, et al. Preparation Process of Phthalide Compound[ P]. EP0885892. 1998 被引量:1