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In a search for new pest control agents, the following benzenesulphonohydrazides have been prepared : 5-chloro-2-methoxy-, 3-chloro-4-methoxy-, 2-chloro-4-methoxy, 3-bromo-4-methoxy-, 5-bromo-Z-methoxy-, 2-bromo-4-methoxy-, 4-methoxy-3-nitro-, 3,4-dimethoxy-, 2,5-dimethoxy-, 2,4-dimethoxy-, 3-acetamido-4-methoxy-, and 5-acetamido-2-methoxy-. In addition, 4-N-sulhonylhdydrazinophenylacetic acid, and 4-N-sulphonyl hydrazino-2-methoxyphenoxyacetic acid have been prepared. The hydrazides have been converted into a number of derivatives (e.g. hydrazones, azides).THE chlorosulphonation of orthoand para-substituted anisoles, (I) and (11), went in high yield; the former reaction generally required only mild conditions (e.g. a few minutes at 0'). The ease of reaction is probably due to the lack of steric hindrance in the position para t Part X, R.

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