反应详情

198 grams of the compound obtained according to (b) were dissolved in 500 ml of 2 normal NaOH and treated with 500 ml of methane and 150 grams of methyl iodide. The mixture was stirred for 6 hours at 20° to 30° C. The crystals formed were filtered off with suction, washed and dried. There are obtained 174.5 grams of final product (dried in a vacuum at 40° C.), white crystals, M.P. 115° to 116° C.

1. customThe crystals formed
2. filtrationwere filtered off with suction
3. washwashed
4. customdried