Methanesulfonic Acid → HCID 566761, compound

Participants

Reaction Steps

210 ml of crude methyl oleate are reacted with 2.4 mol % of catalyst, in this example Pd/bis(di-tert-butylphosphinomethyl)benzene, in 770 ml of methanol and in the presence of 45 mol % of methanesulfonic acid at a temperature of 80° C. and a CO partial pressure of 30 000 hPa in a reaction time of 22 hours with constant stirring to give the alpha,omega-dicarboxylic diester, here 1,19-nonadecanedicarboxylic dimethyl ester. The catalyst was preformed in the same way as under example 1. The crude diester is purified as described under example 1. The yield is 76%, based on methyl oleate.

Provenance & Evidence