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Chemical Structure| 857265-74-8 Chemical Structure| 857265-74-8

Structure of 857265-74-8

Chemical Structure| 857265-74-8

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Product Details of [ 857265-74-8 ]

CAS No. :857265-74-8
Formula : C6H5N3
M.W : 119.12
SMILES Code : NC1=NC=C(C#C)C=N1
MDL No. :MFCD13191925
InChI Key :QZCOCXUODHDEBT-UHFFFAOYSA-N
Pubchem ID :16109021

Safety of [ 857265-74-8 ]

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

Application In Synthesis of [ 857265-74-8 ]

* 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 [ 857265-74-8 ]

[ 857265-74-8 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 1445-39-2 ]
  • [ 1066-54-2 ]
  • [ 857265-74-8 ]
YieldReaction ConditionsOperation in experiment
Example 3Synthesis of 5-ethynylpyrimidin-2-amine A flask was charged with <strong>[1445-39-2]5-iodopyrimidin-2-amine</strong> (25.0 g, 110 mmol), acetonitrile (900 ml, 110 mmol), trimethylsilylacetylene (35 ml, 241 mmol), triethylami?e (93 ml, 658 mmol), Pd(PPh3)4CI2 (3.9 g, 5.5 mmol) and finally copper(l) iodide (1.1 g, 5.5 mmol). The flask was put under vacuum then filled with argon and stirred at RT overnight using a mechanical stirrer. The solvent was removed under vacuum, the residue taken up in methanol (600ml) and potassium carbonate (152 g, 1097 mmol) was added. The mixture was stirred at RT using mechanical stirring for 2 hrs. Activated carbon (~50ml_) was added to the reaction and stirring continued for 15min. The reaction mixture was then filtered through a plug of celite and the filtrate was concentrated to a volume of ~400mL and the precipitate was filtered. The filtrate was concentrated down to a thick paste which was slurried in ~150mL of 10%MeOH/H2O for 20 min at RT. The solids were then filtered off to afford 5-ethynylpyrimidin-2-amine.
 

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