Supplier Page from Thermo Fisher Scientific for (S)-2-Methyl-CBS-oxazaborolidine, 1M soln. in toluene
3-Ethoxy-2-cyclohexen-1-one, 99% from Thermo Fisher Scientific
DL-Ethyl 2-bromopropionate, 99% from Thermo Fisher Scientific
Ethyl oxalyl chloride, 98% from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific