Sodium Methoxide → 4-Methoxy[1]benzothieno[3,2-d][1,2,3]triazine

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Reaction Steps

A 2.2 g. portion of the product of Example 1 was stirred at reflux temperature in 100 ml. of methanol with 0.7 g. of sodium methoxide for one hour. When the reaction mixture was cooled, the product, 1.9 g. of 4-methoxy[1]-benzothieno[3,2-d]-v-triazine, m.p. 165°-167° C., crystallized and needed no further purification.

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