Piracetam synthesis
- Product Name:Piracetam
- CAS Number:7491-74-9
- Molecular formula:C6H10N2O2
- Molecular Weight:142.16
59776-88-4
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7491-74-9
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Yield:7491-74-9 45.94%
Reaction Conditions:
with ammonia in methanol at 60; for 4 h;
Steps:
69 Synthesis of compound 69.3.
Mixture of compound 69.2 (4.5g, 28.66mmol, 1.0eq) and methanolic ammonia (50ml) was stirred at 60°C for 4h. After completion of reaction, reaction mixture was concentrated under reduced pressure and triturated with diethyl ether to obtain 69.3. (1.87g, Yield: 45.94%). MS(ES): m/z 143.08 [M+H] +.
References:
WO2020/112937,2020,A1 Location in patent:Paragraph 00766-00767
57275-83-9
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3445-11-2
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