Lead carbonate (PbCO3) → Tris(4-tert-butoxyphenyl)sulfonium 2,2,2-trifluoroethanesulfonate

Participants

Reaction Conditions

Reaction Steps

In 93 g of methanol was dissolved 9.3 g (0.018 mol) of tris(4-tert-butoxyphenyl)sulfonium chloride. 3.5 g (0.013 mol) of lead carbonate and 3.6 g (0.022 mol) of 2,2,2-trifluoroethanesulfonic acid were added to the solution, which was heated at 50° C. After cooling, the precipitate was filtered off and the filtrate was evaporated. 100 g of chloroform was added to the residue, the solution was washed with 100 g of water, and the solution was evaporated again, obtaining 8.2 g (two-steps yield 25%) of tris(4-tert-butoxyphenyl)sulfonium 2,2,2-trifluoroethanesulfonate with 97% purity.

Provenance & Evidence