![](/StructureFile/ChemBookStructure5/GIF/CB8308504.gif)
CBI-BB ZERO/001711 synthesis
- Product Name:CBI-BB ZERO/001711
- CAS Number:35212-90-9
- Molecular formula:C10H8N2O4S
- Molecular Weight:252.25
![2-FLUORO-4-NITROBENZONITRILE](/CAS/GIF/34667-88-4.gif)
34667-88-4
123 suppliers
$10.00/1g
![Methyl thioglycolate](/CAS/GIF/2365-48-2.gif)
2365-48-2
343 suppliers
$14.00/25g
![CBI-BB ZERO/001711](/StructureFile/ChemBookStructure5/GIF/CB8308504.gif)
35212-90-9
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Yield:35212-90-9 54%
Reaction Conditions:
with triethylamine in acetonitrile at 25; for 19 h;
Steps:
44 Methyl 3-amino-6-nitrobenzothiophene-2-carboxylate
Methyl 3-amino-6-nitrobenzothiophene-2-carboxylate: Methyl thioglycolate (0.08 mL, 0.85 mmol) was added to a solution of 2-fluoro-4-nitrobenzonitrile (145 mg, 0.87 mmol), and triethylamine (0.14 mL, 1.0 mmol) in acetonitrile (20 mL) stirred under nitrogen at 25° C. After 3 hours further triethylamine (0.28 mL, 2.0 mmol) was added to the solution, which was stirred at 25° C. for a further 16 hours. The solvent was removed under reduced pressure to give a brown residue, which upon trituration with chloroform precipitated methyl 3-amino-6-nitrobenzothiophene-2-carboxylate (103 mg, 54%) as a red brown solid, mp 228.5-229.5° C. 1H NMR (DMSO-d6): δ 8.87 (d, J=2.0 Hz, 1H), 8.32 (d, J=9.0 Hz, 1H), 8.15 (dd, J=8.8, 2.0 Hz, 1H), 7.26 (brs, 2H), 3.77 (s, 3H). Mass Spectrum (CI): 253 (100, MH+), 252 (52, M+).
References:
US6344459,2002,B1 Location in patent:Page column 71
![2 4-DINITROBENZONITRILE 97](/CAS/GIF/4110-33-2.gif)
4110-33-2
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$24.73/1gm:
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584-08-7
1181 suppliers
$5.00/100g
![ETHYL THIOGLYCOLATE](/CAS/GIF/623-51-8.gif)
623-51-8
230 suppliers
$7.00/25g
![CBI-BB ZERO/001711](/StructureFile/ChemBookStructure5/GIF/CB8308504.gif)
35212-90-9
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![2-Fluoro-4-nitrotoluene](/CAS/GIF/1427-07-2.gif)
1427-07-2
345 suppliers
$6.00/5g
![CBI-BB ZERO/001711](/StructureFile/ChemBookStructure5/GIF/CB8308504.gif)
35212-90-9
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![2-Fluoro-4-nitrobenzoic acid](/CAS/GIF/403-24-7.gif)
403-24-7
357 suppliers
$5.00/250mg
![CBI-BB ZERO/001711](/StructureFile/ChemBookStructure5/GIF/CB8308504.gif)
35212-90-9
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![2-Fluoro-4-nitro-benzamide](/CAS/GIF/350-32-3.gif)
350-32-3
29 suppliers
$185.00/1g
![CBI-BB ZERO/001711](/StructureFile/ChemBookStructure5/GIF/CB8308504.gif)
35212-90-9
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