| 摘要 |
Novel benzothioxepanone and benzothioxepane thione compounds are characterized by the formula <IMAGE> wherein Z is: <IMAGE> [1] <IMAGE> [2] R is Cl, Br, F, C1 to C8 alkyl, or C1 to C8 alkoxy; X and Y are each hydrogen, or taken together form a fused cyclopentyl or cyclohexyl ring, with the proviso that when Z is [1], X and Y represent a fused cyclopentyl or cyclohexyl ring; and n is 0, 1, or 2. The compounds are useful as co-catalysts in the para-directed nuclear chlorination of toluene.
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