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Chemical Structure| 193151-10-9 Chemical Structure| 193151-10-9

Structure of 193151-10-9

Chemical Structure| 193151-10-9

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Product Details of [ 193151-10-9 ]

CAS No. :193151-10-9
Formula : C11H9NO2
M.W : 187.20
SMILES Code : O=C(OC)/C=C/C1=CC=CC(C#N)=C1
MDL No. :MFCD08064268

Safety of [ 193151-10-9 ]

Application In Synthesis of [ 193151-10-9 ]

* 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 [ 193151-10-9 ]

[ 193151-10-9 ] Synthesis Path-Downstream   1~3

  • 1
  • [ 67-56-1 ]
  • [ 16642-93-6 ]
  • [ 193151-10-9 ]
YieldReaction ConditionsOperation in experiment
With sulfuric acid;Reflux; General procedure: According to method I [2a, 3a, 6a, 9a,10a,12a,13a]: 15 mmols ofcinnamic acid were dissolved in 20 ml of dried methanol and 0.5 mlof concentrated sulfuric acid was added. Mixturewas refluxed from7 to 17 h. Next, the solvent was evaporated, residue was extractedwith 40 ml of ethyl acetate and washed with 0.5% NaOH and brine.Organic layer was dried with anhydrous sodium sulfate and solventwas evaporated again. When necessary, product was crystallizedfrom ethanol with addition of active carbon.
  • 2
  • [ 7732-18-5 ]
  • [ 193151-10-9 ]
  • [ 16642-93-6 ]
YieldReaction ConditionsOperation in experiment
4.35 g (99%) With lithium hydroxide monohydrate; In tetrahydrofuran; Part A. Preparation of trans-3-cyanocinnamic acid. To a solution of methyl trans-3-cyanocinnamate (4.74 g, 25.3 mmol) in 100 mL of tetrahydrofuran and 50 mL of H2 O at room temperature was added lithium hydroxide monohydrate (2.65 g, 63.2 mmol). The resulting mixture was allowed to stir for 16 h. The tetrahydrofuran was removed in vacuo and the residue was diluted with saturated aqueous NaHCO3 and washed with hexane. The organic layer was discarded. The aqueous layer was acidified and extracted with ethyl acetate. The organics were washed with brine, dried over MgSO4 and concentrated in vacuo to afford 4.35 g (99%) of the title compound. 1 H NMR (CDCl3): δ 8.21 (s, 1H), 8.02 (d, 1H), 7.85 (d, 1H), 7.62 (t, 1H), 7.61 (d, 1H), 6.73 (d, 1H).
4.35 g (99%) With lithium hydroxide monohydrate; In tetrahydrofuran; Part A. Preparation of trans-3-cyanocinnamic acid. To a solution of methyl trans-3-cyanocinnamate from Example 1, Part A, (4.74 g, 25.3 mmol) in 100 mL of tetrahydrofuran and 50 mL of H2 O at room temperature was added lithium hydroxide monohydrate (2.65 g, 63.2 mmol). The resulting mixture was allowed to stir for 16 h. The tetrahydrofuran was removed in vacuo and the residue was diluted with saturated aqueous NaHCO3 and washed with hexane. The organic layer was discarded. The aqueous layer was acidified and extracted with ethyl acetate. The organics were washed with brine, dried over MgSO4 and concentrated in vacuo to afford 4.35 g (99%) of the title compound. 1 H NMR (CDCl3): δ 8.21 (s, 1H), 8.02 (d, 1H), 7.85 (d, 1H), 7.62 (t, 1H), 7.61 (d, 1H), 6.73 (d, 1H).
  • 3
  • [ 193151-10-9 ]
  • [ 16642-93-6 ]
YieldReaction ConditionsOperation in experiment
4.35 g (99%) With lithium hydroxide monohydrate; In tetrahydrofuran; water; Part A. Preparation of trans-3-cyanocinnamic acid. To a solution of methyl trans-3-cyanocinnamate (4.74 g, 25.3 mmol) in 100 mL of tetrahydrofuran and 50 mL of H2O at room temperature was added lithium hydroxide monohydrate (2.65 g, 63.2 mmol). The resulting mixture was allowed to stir for 16 h. The tetrahydrofuran was removed in vacuo and the residue was diluted with saturated aqueous NaHCO3 and washed with hexane. The organic layer was discarded. The aqueous layer was acidified and extracted with ethyl acetate. The organics were washed with brine, dried over MgSO4 and concentrated in vacuo to afford 4.35 g (99%) of the title compound. 1H NMR (CDCl3): δ 8.21 (s, 1H), 8.02 (d, 1H), 7.85 (d, 1H), 7.62 (t, 1H), 7.61 (d, 1H), 6.73 (d, 1H).
4.35 g (99%) With lithium hydroxide monohydrate; In tetrahydrofuran; water; Part A. Preparation of trans-3-cyanocinnamic acid. To a solution of methyl trans-3-cyanocinnamate from Example 1, Part A, (4.74 g, 25.3 mmol) in 100 mL of tetrahydrofuran and 50 mL of H2O at room temperature was added lithium hydroxide monohydrate (2.65 g, 63.2 mmol). The resulting mixture was allowed to stir for 16 h. The tetrahydrofuran was removed in vacuo and the,residue was diluted with saturated aqueous NaHCO3 and washed with hexane. The organic layer was discarded. The aqueous layer was acidified and extracted with ethyl acetate. The organics were washed with brine, dried over MgSO4 and concentrated in vacuo to afford 4.35 g (99%) of the title compound. 1H NMR (CDCl3): δ 8.21 (s, 1H), 8.02 (d, 1H), 7.85 (d, 1H), 7.62 (t, 1H), 7.61 (d, 1H), 6.73 (d, 1H).
 

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