TL Kao, CC Wang, YT Pan, YJ Shiao… - The Journal of …, 2005 - ACS Publications
The syntheses and chromogenic properties of calix [4] arenes, carrying 5, 17-bisallyl-11, 23-
bis (pX-phenyl) azo 3a− c, 5, 11, 17-triallyl-23-(pX-phenyl) azo 4a− c, and 5, 17-bis …