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Chemical Structure| 857265-75-9 Chemical Structure| 857265-75-9

Structure of 857265-75-9

Chemical Structure| 857265-75-9

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Product Details of [ 857265-75-9 ]

CAS No. :857265-75-9
Formula : C9H13N3Si
M.W : 191.31
SMILES Code : NC1=NC=C(C#C[Si](C)(C)C)C=N1
MDL No. :MFCD20694839

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Application In Synthesis of [ 857265-75-9 ]

* 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 [ 857265-75-9 ]

[ 857265-75-9 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 1445-39-2 ]
  • [ 1066-54-2 ]
  • [ 857265-75-9 ]
YieldReaction ConditionsOperation in experiment
100% With N-ethyl-N,N-diisopropylamine;(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; copper(l) iodide; In ethyl acetate; at -20 - 20℃; for 6h; Intermediate 5; o 5-[(Trimethylsilyl)ethynyl]pyrimidin-2-aminePdCl2dppf (146 mg) was added to a solution of <strong>[1445-39-2]2-amino-5-iodopyrimidine</strong> (221 mg), trimethylsilylacetylene (491 mg), CuI (57 mg) and DIPEA (259 mg) in EtOAc (5 mL) at -20C under an inert atmosphere. The reaction was allowed to warm to ambient s temperature and stirred for 6 hours. The reaction mixture was diluted with water (10 mL). The organic layer was separated, dried (MgSO4), filtered and concentrated. The crude product was used directly without further purification (191 mg, 100%); 1H NMR (CDCl3) 0.26 (s, 9H), 5.19 (bs, 2H)3 8.39 (s, 2H); MS m/e M^+MeCN 233. o
100% With N-ethyl-N,N-diisopropylamine;(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; copper(l) iodide; In ethyl acetate; at -20 - 20℃; for 6h; 5-[(Trimethylsilyl)ethynyl]pyrimidin-2-amine PdCl2dppf (146 mg) was added to a solution of <strong>[1445-39-2]2-amino-5-iodopyrimidine</strong> (221 mg), trimethylsilylacetylene (491 mg), CuI (57 mg) and DIPEA (259 mg) in EtOAc (5 mL) at -20 C. under an inert atmosphere. The reaction was allowed to warm to ambient temperature and stirred for 6 hours. The reaction mixture was diluted with water (10 mL). The organic layer was separated, dried (MgSO4), filtered and concentrated. The crude product was used directly without further purification (191 mg, 100%); 1H NMR (CDCl3) 0.26 (s, 9H), 5.19 (bs, 2H), 8.39 (s, 2H);
100% With N-ethyl-N,N-diisopropylamine;(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; copper(l) iodide; In ethyl acetate; at -20 - 20℃; for 6h; PdCl2dppf (146 mg) was added to a solution of <strong>[1445-39-2]2-amino-5-iodopyrimidine</strong> (221 mg), trimethylsilylacetylene (491 mg), Cul (57 mg) and DIPEA (259 mg) in EtOAc (5 mL) at - 20C under an inert atmosphere. The reaction was allowed to warm to ambient temperature and stirred for 6 hours. The reaction mixture was diluted with water (10 mL). The organic layer was separated, dried (MgS04), filtered and concentrated. The crude product was used directly without further purification (191 mg, 100%) ; 'H NMR (CDCl3) ; 0.26 (s, 9H), 5.19 (bs, 2H), 8.39 (s, 2H); MS m/e MH++MeCN 233.
With triethylamine;bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; In acetonitrile; at 20℃; for 3h; Into a IL round bottom flask was placed the 2-amino-5- iodopyrimidine (8.0 g, 36.2 mmol) , acetonitrile (30OmL), triethylamine (3OmL), TMS acetylene (7.68g, 78.2 mmol), palladium dichloro-bis-triphenylphosphine (1.26g, 1.8 mmol), and copper(I) iodide (0.342g, 1.8 mmol) . The vessel was filled with argon gas and allowed to stir at room temperature for 3 hours. The solvent was evaporated and the crude was taken up in methanol (40OmL) . Then excess potassium carbonate (10eq) was added, and the mixture was stirred at room temperature for 1.5 hours. Activated charcoal was added and the mixture was filtered through celite. The filtrate was concentrated under reduced pressure to afford a tan solid, which was added to a solution of 10% methanol in water (20OmL) . The resulting precipitate was isolated by filtration, dried in a vacuum oven to constant mass and afforded the title compound as a tan solid. MS m/z = 120 [M+H]+. CaIc'd for C6H5N3: 119.

 

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