abstract |
Acylphenoxypropanesulphonic acids of the formula I are obtained by reacting compounds of the formula III, after intermediate protection of the hydroxyl group in position 3 of ring B, with 3-halopropanesulphonic acids or salts thereof or with propane sultone. The meaning of the individual symbols is given in Claim 1. The compounds of the formula I are highly soluble, heat- and acid-resistant, non-toxic sweeteners. <IMAGE> |