Abstract

Chemistry of Mucohalic Acids. V. Reaction of 3,4,5‐Trichloro‐2(5H)‐furanone and 3‐Aroxy‐4,5‐dichloro‐2(5H)‐furanones with Azide3,4,5‐Trichloro‐2(5H)‐furanone 1 reacts with sodium azide to afford 4‐azido‐3,5‐dichloro‐2(5H)‐furanone 2, whereas 3‐aroxy‐4,5‐dichloro‐2(5H)‐furanones 11 provides under the same conditions 3‐aroxy‐5‐azido‐4‐chloro‐2(5H)‐furanones 12. Reactions of 1 and 11 with two equivalents of azide lead to diazido derivatives 5 and 13. β‐Lactam 9 or pyrimidone 10 were synthesized from 5 and benzanilide.

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