Methyl iodide → HCID 19786578, compound

Participants

Reaction Steps

6,7-Dihydro-5-dimethylaminomethyl-3-phenyl-1,2-benzisoxazole-4(5H)-one free base (3.0 g) was dissolved in 3 ml of methanol and added in one portion to 5 ml (excess) of methyl iodide. As the quaternary iodide began to separate, additional methanol was added to facilitate stirring. After stirring overnight the reaction mixture was poured into 5% sodium bicarbonate solution and extracted with ether. The organic phase was washed with 5% HCl and then dried, evaporated, and recrystallized from hexane to give 2.05 g of 6,7-dihydro-5-methylene-3-phenyl-1,2-benzisoxazol-4(5H)-one, m.p. 97°-99° C.

Provenance & Evidence