Supplier Page from Thermo Fisher Scientific for (S)-(4,4',5,5',6,6'-Hexamethoxybiphenyl-2,2'-diyl)bis(bis[3,5-dimethylphenyl]phosphine), 97%
3-Ethoxy-2-cyclohexen-1-one, 99% from Thermo Fisher Scientific
Ethyl 2-bromoisobutyrate, 98% from Thermo Fisher Scientific
Ethyl propiolate, 99% from Thermo Fisher Scientific
Flavone, 99+% from Thermo Fisher Scientific