Methacrylamidopropyltrimethylammonium chloride → [3-(Methacryloylamino)propyl]trimethylammonium tetraphenylborate

Participants

Reaction Steps

Sodium tetraphenylborate (13.68 g, Aldrich Chemical Co.) was dissolved in 300 g of water in a 500 ml beaker marked as Container A. [3-(Methacryloylamino)propyl]trimethylammonium chloride (17.64 g, 50% in water, Aldrich Chemical Co.) was diluted in 500 g of water in a 1000 ml beaker marked as Container B. The solution in Container A was slowly (over about 10 minutes) added to the solution in Container B while severely stirring by a Silverson L4R. A white precipitate was formed and the mixture was stored in a refrigerator for 2 hours. After a first filtration, the white solid was collected and washed with 100 ml of water. The product was obtained from a second filtration and dried under ambient temperature over the weekend and then at 35° C. in an oven for 4 hours to provide 20 g of a white solid.

Provenance & Evidence