Synthesis of 1-3 Thiazines from Aurone

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A large group of dyes has the phenothiazine structure, including methylene blue thiazine are use for dyes, tranquilizers and insecticides thiazine can help reduce some of that extra water weight you may be holding on to in your stomach.thiazine is a fairly basic diuretic supplement, it reduce water and increase vascularity, so it is also use as anabolic agent in medicine. It is therefore reported that thiourea reacts with mesityl oxide in acetic acid medium to give 2-imino-6H, 2,3dihydro-1-3-thiazine and 2-thioxotetrahydro pyridine derivatives.

1-3 Thiazines from Aurone; Hetrocyclic compounds