This method should be useful in the synthesis of other bisthiolsulfonates using 1,4-butanedisulfinic acid with both aliphatic and aromatic thiols and hopefully also in the preparation of thiolsulfonates using aromatic sulfinic acids and alkylene dithiols. A limitation of the method may be that 1,bbutanedisulfinic acid is perhaps the only alkylene disulfinic acid which is quite stable as the free acid.' However, many disulfinic acids may be prepared as salts,' suggesting that acidi- fication ...
