介绍了吩噻嗪的制备方法，主要是二苯胺与硫在催化剂存在下反应的方法。

Its preparation method, which mainly reacted by diphenyl amine and sulfur with catalyst, is introduced.

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稠合1,2,4 -噻二嗪衍生物及其制备方法和用途。

Fused 1, 2, 4-thiadiazine derivatives, their preparation method and use.

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稠合的1,2,4 -噻二嗪衍生物、其制备方法和用途。

Fused 1, 2, 4-thiadiazine derivatives, their preparation and use.

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