Results Preparation of Benzene-o-disulfinic Anhydride. A compound (mp 113-115" C) assigned the structure benzene-o-disulfinic acid (6) has been reported by Hendrickson et alS4 We repeated the preparation of this substance, using a slightly modified route. We first synthesized benzene-o-disulf~ nhydroxyimide~~~(10) and then used the known4r5 reaction (eq 4) of 10 with ammonia to prepare
