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Chemical Structure| 90690-94-1 Chemical Structure| 90690-94-1

Structure of 90690-94-1

Chemical Structure| 90690-94-1

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Product Details of [ 90690-94-1 ]

CAS No. :90690-94-1
Formula : C8H4ClNO2S
M.W : 213.64
SMILES Code : O=C(C1=CN=C(C=CS2)C2=C1Cl)O
MDL No. :MFCD08274644

Safety of [ 90690-94-1 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Application In Synthesis of [ 90690-94-1 ]

* 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 [ 90690-94-1 ]

[ 90690-94-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 83179-01-5 ]
  • [ 90690-94-1 ]
YieldReaction ConditionsOperation in experiment
With hydrogenchloride; sodium hydroxide; In ethanol; REFERENCE EXAMPLE 7 7-Chlorothieno[3,2-b]pyridine-6-carboxylic acid A mixture of <strong>[83179-01-5]ethyl 7-chlorothieno[3,2-b]pyridine-6-carboxylate</strong> (2.98 g, 12.3 mmol) [Thompson, M.; Forbes, I. F. EP 126970] in 40 mL of ethanol and 15 mL of 2.5 N sodium hydroxide is heated at reflux for 1 hour. The mixture is cooled to 0 C. and the pH is adjusted to 4 by the addition of 4 N hydrochloric acid. The mixture is stirred at room temperature and the resulting precipitate is collected by filtration washing with water to provide 2.47 g of 7-chlorothieno[3,2-b]pyridine-6-carboxylic acid as a white solid, 1H NMR (DMSO-d6) delta7.73 (d, J=6 Hz, 1H), 8.44 (d, J=6 Hz, 1H), 9.07 (s, 1H).
Reference Example 7 7-Chlorothieno [3,2-b] pyridine-6-carboxylic acid A mixture of ethyl 7-CHLOROTHIENO [3,2-b] PYRIDINE-6-CARBOXYLATE (2.98 g, 12.3 MMOL) [Thompson, M.; FORBES, L. F. EP 126970] in 40 mL of ethanol and 15 mL of 2.5 N sodium hydroxide is heated at reflux for 1 hour. The mixture is cooled to 0C and the pH is adjusted to 4 by the addition of 4 N hydrochloric acid. The mixture is stirred at room temperature and the resulting precipitate is collected by filtration washing with water to provide 2.47 g of 7-CHLOROTHIENO [3,2-b] pyridine-6-carboxylic acid as a white SOLID, 1 H NMR (DMSO-d6) 87. 73 (d, J = 6 Hz, 1 H), 8.44 (d, J = 6 Hz, 1 H), 9.07 (s, 1H).
 

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