Supplier Page from Thermo Fisher Scientific for Tris[3,5-bis(trifluoromethyl)phenyl]phosphine, 94%
2-Ethoxybenzamide, 97% from Thermo Fisher Scientific
4-Fluorobenzenesulfonyl chloride, 98% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl trifluoroacetate, 99% from Thermo Fisher Scientific