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Chemical Structure| 351416-83-6 Chemical Structure| 351416-83-6

Structure of 351416-83-6

Chemical Structure| 351416-83-6

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Product Details of [ 351416-83-6 ]

CAS No. :351416-83-6
Formula : C7H9NO2
M.W : 139.15
SMILES Code : O=C(C1=CN(C)C=C1C)O
MDL No. :MFCD18810352

Safety of [ 351416-83-6 ]

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

Application In Synthesis of [ 351416-83-6 ]

* 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 [ 351416-83-6 ]

[ 351416-83-6 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 40318-15-8 ]
  • [ 74-88-4 ]
  • [ 351416-83-6 ]
YieldReaction ConditionsOperation in experiment
With sodium hydroxide; NaH; ammonium chloride; In tetrahydrofuran; ethanol; water; EXAMPLE 1 1,4-Dimethylpyrrole-3-carboxylic Acid In a sulfonation flask 0.87 g (20 mmol) NaH (55%) are dissolved in 10 ml of absolute THF. Then a solution of 2.8 g (20 mmol) <strong>[40318-15-8]4-methylpyrrole-3-carboxylic acid methylester</strong> in 400 ml THF is added dropwise. After stirring of the mixture for 10 minutes at room temperature, 1.2 ml (20 mmol) methyl iodide are added and stirring continued for 1 hour. After addition of 50 ml of a cold ca. 10% ammonium chloride solution the mixture is extracted twice with ethylacetate. After drying of the organic phase the solvent is removed in a water jet vacuum. The obtained crude N-methylated ester is dissolved in 10 ml ethanol and 20 ml of a 2N sodium hydroxide solution. The resulted mixture is stirred at 80-85 C. for 3 hours and then ethanol is removed in a water jet vacuum. After addition of 25 ml of water and extraction with ethylacetate the water phase is acidified with concentrated hydrochloric acid. After cooling the acid is separated by filtration. Yield after drying: 2.1 g of 1,4-dimethylpyrrole-3-carboxylic acid in form of a slightly brownish powder; m.p. 166-168 C.
 

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