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Chemical Structure| 74002-70-3 Chemical Structure| 74002-70-3

Structure of 74002-70-3

Chemical Structure| 74002-70-3

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Product Details of [ 74002-70-3 ]

CAS No. :74002-70-3
Formula : C5H3N3S
M.W : 137.16
SMILES Code : N#CC1=NC=CN=C1S

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Application In Synthesis of [ 74002-70-3 ]

* 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 [ 74002-70-3 ]

[ 74002-70-3 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 74002-70-3 ]
  • [ 907597-26-6 ]
YieldReaction ConditionsOperation in experiment
With bromine; In ethyl acetate; for 1.5h;Heating / reflux; Crude 3-mercaptopyrazine-2- carbonitrile (1.1 g, 8.0 mmol) was dissolved in ethyl acetate (30 mL) and treated with bromine (0.46 mL, 8.8 mmol). The reaction mixture was heated to reflux. As soon as the bromine was added, the mixture became homogeneous but after several minutes a precipitate began to form. After 90 min the reaction mixture was cooled to room temperature and then partitioned between ethyl acetate and saturated aqueous sodium bicarbonate solution. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure to yield 3-bromoisothiazolo[5,4-b]pyrazine as a pale orange solid. MW=215 confirmed by LC-MS, tr= 10.34 min (Method Y) MH+=214-216.
 

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