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Chemical Structure| 656800-40-7 Chemical Structure| 656800-40-7

Structure of 656800-40-7

Chemical Structure| 656800-40-7

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Product Details of [ 656800-40-7 ]

CAS No. :656800-40-7
Formula : C11H15NSi
M.W : 189.33
SMILES Code : C[Si](C#CC1=CC=CC(C)=N1)(C)C
MDL No. :MFCD03095278

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Application In Synthesis of [ 656800-40-7 ]

* 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 [ 656800-40-7 ]

[ 656800-40-7 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 656800-40-7 ]
  • [ 30413-58-2 ]
YieldReaction ConditionsOperation in experiment
97% With potassium carbonate; In methanol; dichloromethane; at 20℃; for 2h; 2-methyl-6- [ (trimethylsilyl) ethynyl] pyridine (1.67 g, 8.82 mmol) was dissolved in MeOH (10 mL) and DCM (20 mL) and anhydrous potassium carbonate (3.66 g, 26.5 mmol, 3.0 eq. ) was added at room temperature. The mixture was stirred at room temperature for 2h and then concentrated in vacuo. Then the material was passed through a Si plug, 10 g, while rinsing with DCM. This gave 1.0 g (yield: 97 %) pure product. 'H NMR (400 MHz): 7.55 (t, J = 7.8 Hz, 1H), 7.31 (d, J = 7.8 Hz, 1H), 7.14 (d, J = 7.8 Hz, 1H), 3.13 (s, 1H), 2.56 (s, 3H).
80.6% With potassium carbonate; In methanol; at 20℃; for 1h; A solution of 2-methyl-6-((trimethylsilyl)ethynyl)-pyridine (2 g, 10.58 mmol) and K2CO3 (1 .46 g, 10.58 mmol) in MeOH (20 mL) was stirred at room temperature for 1 hour. The reaction mixture was filtered and washed with EA. The combined the organic layers were dried and concentrated to give 2-ethynyl-6-methylpyridine (1 g, yield 80.6%) as brown oil. 1H NMR (400MHz CDC ): delta 7.38 (t, J =8.0 Hz ,1 H), 7.13 (d, J =7.6 Hz, 1 H), 6.96 (d, J =7.2 Hz, 1 H), 2.97 (s, 1 H), 2.39 (s, 3H).
77% With potassium carbonate; In methanol; at 20℃; for 0.5h; To a solution of Intermediate 2 (18.4g, 0. [097MOL)] in [MEOH] (100 [ML)] was added potassium carbonate (4eq, 0. [39MOL,] 53.7g). The reaction mixture was then stirred at room temperature for 30 min and the solvent evaporated to dryness. The residue was partitioned between ethyl acetate/water. The organic layer was dried over [NA2SO4,] filtered and the solvent evaporated under reduced pressure to give the title compound (8.75g, 77%) as a brown oil ;'H NMR (300 MHz, CDC13) [8] : 7.45-7. 34 [(M,] [1H),] 7.14 (d, 1H), 6.98 (d, 1H), 2.97 (s, 1H), 2.40 (s, 3H).
77% With potassium carbonate; In methanol; at 20℃; for 0.5h; To a solution of intermediate 2 [(18.] 4g, 0. [097MOL)] in MeOH (100 ml) was added potassium carbonate (4eq, 0. [39MOL,] 53.7g) and the reaction mixture was stirred at rt for 30 min. The solvent was removed and the residue was partitioned between ethyl acetate/water. The organic layer was dried over [NA2SO4,] filtered and the solvent evaporated under reduced pressure to give the title compound (8.75g, 77%) as a brown oil ;'H NMR (300 MHz, [CDCI3)] [8] ppm: 7.45-7. 34 (m, [1H),] 7.14 (d, [1H),] 6.98 (d, [1 H),] 2.97 (s, 1H), 2.40 (s, 3H).

  • 2
  • [ 62674-71-9 ]
  • [ 1066-54-2 ]
  • [ 656800-40-7 ]
 

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