Ethyl 7-bromo-2-oxo-1,2-dihydroquinoline-4-carboxylate synthesis
- Product Name:Ethyl 7-bromo-2-oxo-1,2-dihydroquinoline-4-carboxylate
- CAS Number:762260-64-0
- Molecular formula:C12H10BrNO3
- Molecular Weight:296.1167
Yield:762260-64-0 95%
Reaction Conditions:
with thionyl chloride at 20; for 6.5 h;Cooling with ice;Reflux;
Steps:
7.U.W W. Intermediate 13
Four (4) ml of SOCh was added dropwise to a suspension of intermediate compound 12 and EtOH, in an ice bath, and the mixture was stirred for 30 min at room temperature, then refluxed for 6 hrs. After cooling, the mixture was filtered and washed with chilled EtOH, and dried in vacuo to obtain 5.25 g pale grey powder as intermediate 13 (yield=95%)
References:
WO2021/194954,2021,A1 Location in patent:Paragraph 00363; 00383-00384
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