5-Chlorobenzofuran-2-carboxamide synthesis
- Product Name:5-Chlorobenzofuran-2-carboxamide
- CAS Number:35351-20-3
- Molecular formula:C9H6ClNO2
- Molecular Weight:195.6
4852-31-7
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Yield:35351-20-3 98%
Reaction Conditions:
with ammonia in water at 20;
Steps:
3
105.3 g of 5-chloroBenzofuran-2-carboxylic acid methyl ester700 mL of concentrated aqueous ammonia,The mixture was stirred at room temperature overnight,Precipitation solid filtration,The filter cake was washed with dichloromethane,Centrifugation,To give 91.6 g of an off-white solid, 5-chlorophenylpropanfuran-2-carboxamide, HPLC & gt; 98% in 93.7% yield.
References:
CN103450125,2016,B Location in patent:Paragraph 0051; 0052
106-48-9
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35351-20-3
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