Propargyl bromide → HCID 19753471, compound

Participants

Reaction Steps

160 g (0.64 mol) of 2-acetylaminonaphthalene-6-sulfinic acid were dissolved in 1000 ml of water at pH 6 and the solution was added dropwise to a solution of 84.1 g (0.7 mol) of 3-bromoprop-1-yne and 85 ml of THF. After the addition was complete, the reaction mixture was heated at from 40° to 60° C. until the reaction had ended (check by TLC). The precipitate formed was filtered off with suction at about 10° C., washed with water and dried, leaving 166.4 g of 2-acetylamino-6-(prop-1-yn-3-ylsulfonyl)naphthalene of the formula ##STR24## having a melting point of from 230° to 238° C.

Provenance & Evidence