Supplier Page from Thermo Fisher Scientific for Sodium tert-butoxide, 97%
4'-Fluoroacetophenone, 99% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl butyrylacetate, 98% from Thermo Fisher Scientific
Ethyl chloroformate, 99% from Thermo Fisher Scientific