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Chemical Structure| 68236-26-0 Chemical Structure| 68236-26-0

Structure of 68236-26-0

Chemical Structure| 68236-26-0

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Product Details of [ 68236-26-0 ]

CAS No. :68236-26-0
Formula : C6H6BrNOS
M.W : 220.09
SMILES Code : CC(=O)NC1=CC=C(Br)S1
MDL No. :MFCD01859880
InChI Key :SVIZHRDMDNJNMC-UHFFFAOYSA-N
Pubchem ID :4144312

Safety of [ 68236-26-0 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H332-H335
Precautionary Statements:P261-P280-P305+P351+P338

Application In Synthesis of [ 68236-26-0 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 68236-26-0 ]

[ 68236-26-0 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 68236-26-0 ]
  • [ 62226-18-0 ]
  • 2
  • [ 13195-50-1 ]
  • [ 108-24-7 ]
  • [ 68236-26-0 ]
YieldReaction ConditionsOperation in experiment
35% With iron; acetic acid; at 100℃; for 0.5h; To a solution of <strong>[13195-50-1]2-bromo-5-nitrothiophene</strong> (2 g, 10 mmol) in acetic acid (15 mL) and acetic anhydride (15 mL) was added iron powder (2.8 g, 50 mmol). The reaction was heated under 100°C for 30 minutes. The reaction mixture was put into 2M NaOH aqueous (100 mL) and extracted with EtOAc (100 mL x 3). The combined organic phase was dried over Na2S04, filtered, and concentrated. The crude product was purified on ISCO columns. Fractions containing pure product were combined and evaporated to give 70 (0.76 g, 35percent) as a yellow oil.
<strong>[13195-50-1]2-bromo-5-nitrothiophene</strong> (1.04 g, 5 mmol) was mixed with HOAc (2 mL), Ac20 (2 mL) and iron powder (1.25 g, 25 mmol). The mixture was heated at 100°C for 0.5h. The reaction was quenched with 2M NaOH and the solid was filtered and washed with EtOAc. The filtrate was worked-up with EtOAc extraction. The 5-bromo-2-thienylacetamide was obtained from ISCO purification. To a solution of 5-bromo-2-thienylacetamide (190 mg, 0.9 mmol) in CH2C12 (10 mL) was added 2,4,6-trifluorobenzoyl chloride (2 mmol), N,N- diisopropylethylamine (4 mmol) and a catalytic amount of DMAP. The mixture was stirred for 2h at room temperature. The reaction was quenched with saturated aqueous NaHC03 solution (20 mL) and extracted with EtOAc (20 mL x 2). The combined organic layers were dried (Na2S04) and concentrated in vacuo. The residue was dissolved in THF (2 mL) and MeOH (2 mL). 1M NaOH (2 mL) was added and the reaction mixture was stirred for 0.5 h at room temperature. The reaction mixture was concentrated and worked-up with EtO Ac-Brine.
 

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