Supplier Page from Thermo Fisher Scientific for Dibutylboron trifluoromethanesulfonate, 1M sol. in dichloromethane
3-Fluorobenzoic acid, 99% from Thermo Fisher Scientific
Ethyl phenylcyanoacetate, 97% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific