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Chemical Structure| 1189746-28-8 Chemical Structure| 1189746-28-8

Structure of 1189746-28-8

Chemical Structure| 1189746-28-8

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Product Details of [ 1189746-28-8 ]

CAS No. :1189746-28-8
Formula : C11H16N2Sn
M.W : 294.97
SMILES Code : C[Sn](C1=CC2=CN(C)N=C2C=C1)(C)C

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Application In Synthesis of [ 1189746-28-8 ]

* 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 [ 1189746-28-8 ]

[ 1189746-28-8 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 465529-56-0 ]
  • [ 661-69-8 ]
  • [ 1189746-28-8 ]
YieldReaction ConditionsOperation in experiment
41% tetrakis(triphenylphosphine) palladium(0); In 1,4-dioxane; at 110℃; for 0.25h;Inert atmosphere; Preparation 4 Synthesis of 2-methyl-5-trimethylstannanyl-2H-indazole Add tetrakis(triphenylphosphine)palladium (0.26 g, 0.22 mmol) to a mixture of <strong>[465529-56-0]5-bromo-2-methyl-2H-indazole</strong> (0.94 g, 4.43 mmol) and hexamethylditin (1.02 mL, 4.88 mmol) in 1,4-dioxane (5 mL). Flush with nitrogen and heat in a microwave at 110 C. for 15 min. Prepare similarly two other batches from respectively tetrakis(triphenyl-phosphine)palladium (0.29 g, 0.25 mmol), <strong>[465529-56-0]5-bromo-2-methyl-2H-indazole</strong> (1.07 g, 5.07 mmol), hexamethylditin (1.16 mL, 5.58 mmol) in 1,4-dioxane (5 mL) and tetrakis(triphenylphosphine)palladium (0.25 g, 0.22 mmol), <strong>[465529-56-0]5-bromo-2-methyl-2H-indazole</strong> (0.92 g, 4.36 mmol), hexamethylditin (1.00 mL, 4.80 mmol) in 1,4-dioxane (5 mL). Combine the three batches and purify by silica gel chromatography gradient eluding from 15:85 to 80:20 using ethyl acetate:iso-hexane, and then further purify with a second silica gel chromatography, gradient eluding from 15:85 to 30:70 using ethyl acetate:iso-hexane to give the title compound as an oil which crystallizes on standing (1.68 g, 41%). MS (m/z): 293-301 cluster (M+1).
 

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