(4-hydroxyphenyl)-dimethylsulfanium;hexafluorophosphate

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 3 g of triethylamine in 89 g of tetrahydrofuran was added dropwise to a mixture of 870 g of toluene, 443 g of tetrahydrofuran, 90 g of 4-hydroxyphenyldimethylsulfonium hexafluorophosphate and 51 g of isocyanatoethyl methacrylate at from 20 to 25° C. in the course of 10 minutes, at a rate such that there was no marked temperature increase After 12 hours, the product was filtered off under suction, washed with toluene and recrystallized from ethanol. Yield: 112 g (82%) of colorless crystals of melting point 102°-104° C. increase After 12 hours the product was filtered off under suction washed with toluene recrystallized from ethanol

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 3 g of triethylamine in 89 g of tetrahydrofuran was added dropwise to a mixture of 870 g of toluene, 443 g of tetrahydrofuran, 90 g of 4-hydroxyphenyldimethylsulfonium hexafluorophosphate and 51 g of isocyanatoethyl methacrylate at from 20 to 25° C. in the course of 10 minutes, at a rate such that there was no marked temperature increase After 12 hours, the product was filtered off under suction, washed with toluene and recrystallized from ethanol. Yield: 112 g (82%) of colorless crystals of melting point 102°-104° C. increase After 12 hours the product was filtered off under suction washed with toluene recrystallized from ethanol