1,3-Benzothiazole-2-carbohydrazide synthesis
- Product Name:1,3-Benzothiazole-2-carbohydrazide
- CAS Number:28891-34-1
- Molecular formula:C8H7N3OS
- Molecular Weight:193.23
32137-76-1
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Yield:28891-34-1 96%
Reaction Conditions:
with hydrazine hydrate in ethanol at 20; for 4 h;
Steps:
1.2 Step 2:The preparation of benzo[d]thiazole-2-carbohydrazide
Ethyl benzo[d]thiazole-2-carboxylate (300 mg, 1.45 mmol) was dissolved in absolute ethanol (10 mL),85% hydrazine hydrate (102 mg, 1.74 mmol) was added,Stir at room temperature for 4 hours.Filtration and drying gave benzo[d]thiazole-2-carbohydrazide (270 mg, yield: 96%).
References:
WO2022/22680,2022,A1 Location in patent:Page/Page column 17
137-07-5
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