5-Nitrobenzothiophene 1,1-Dioxide synthesis
- Product Name:5-Nitrobenzothiophene 1,1-Dioxide
- CAS Number:90049-81-3
- Molecular formula:C8H5NO4S
- Molecular Weight:211.19
4965-26-8
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Yield:90049-81-3 620 mg
Reaction Conditions:
with dihydrogen peroxide;glacial acetic acid at 60; for 10 h;Inert atmosphere;
Steps:
90.1 Step 1: Synthesis of 5-nitrobenzo[b]thiophene-1,1-dioxide
Under nitrogen protection, 5-nitrobenzo[b]thiophene (800 mg) was dissolved in acetic acid (20 mL) and hydrogen peroxide (10 mL, 35%) solution, stirred at 60° C for 10 hours, and the reaction was completed.The reaction solution was quenched with aqueous sodium bicarbonate solution, extracted with dichloromethane, and the organic phase was concentrated to obtain 620 mg of the title compound.
References:
WO2022/152259,2022,A1 Location in patent:Page/Page column 95-96
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![5-NITRO-BENZO[B]THIOPHENE-2-CARBOXYLIC ACID ETHYL ESTER](/CAS/GIF/25785-09-5.gif)
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