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Chemical Structure| 83259-31-8 Chemical Structure| 83259-31-8

Structure of 83259-31-8

Chemical Structure| 83259-31-8

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Product Details of [ 83259-31-8 ]

CAS No. :83259-31-8
Formula : C7H5ClN2S
M.W : 184.65
SMILES Code : CC1=CSC2=NC(Cl)=NC=C21
MDL No. :MFCD11518959

Safety of [ 83259-31-8 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P280-P301+P312-P302+P352-P305+P351+P338

Application In Synthesis of [ 83259-31-8 ]

* 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 [ 83259-31-8 ]

[ 83259-31-8 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 56844-38-3 ]
  • [ 83259-31-8 ]
YieldReaction ConditionsOperation in experiment
With ammonia; zinc; In ethanol; water; at 78℃; for 1.0h; To 1.5 g (10.9 mmol) of 2-amino-4-methylthiophene-3-carbonitrile in acetonitrile (9 mL) was added 2.0 mL (16.3 mmol) of diphosgene and the mixture was heated in an sealed tube at 100 C. for 15 hours. After cooling to room temperature, the reaction was poured into water slowly and partitioned between water and EtOAc. The organic phase was washed with saturated NH4Cl, dried over MgSO4 and concentrated. The residual yellow solid was dissolved in ethanol (30 mL) and to this suspension was added 2.4 g (36.1 mmol) of zinc dust and 3.1 mL (22.6 mmol) of ammonium hydroxide and the reaction was heated to 78 C. for 1 hour. After cooling the reaction mixture to ambient temperature, the mixture was filtered through celite, partitioned between EtOAc and water, and extracted with EtOAc (2×100 mL). The organic phase was dried over MgSO4 and concentrated and the residue was purified by flash column chromatography (EtOAc/hexanes) to afford K-1 as an off-white solid. Data for K-1: LC/MS: rt=2.03 min; m/z (M+H)=185.1 found; 185.0 required.
 

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