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Chemical Structure| 1190319-99-3 Chemical Structure| 1190319-99-3

Structure of 1190319-99-3

Chemical Structure| 1190319-99-3

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Product Details of [ 1190319-99-3 ]

CAS No. :1190319-99-3
Formula : C10H7N3O2
M.W : 201.18
SMILES Code : O=C(C1=CC2=C(NN=C2C#N)C=C1)OC
MDL No. :MFCD12963547

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Application In Synthesis of [ 1190319-99-3 ]

* 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 [ 1190319-99-3 ]

[ 1190319-99-3 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 67-56-1 ]
  • [ 201230-82-2 ]
  • [ 201227-39-6 ]
  • [ 1190319-99-3 ]
YieldReaction ConditionsOperation in experiment
68% With sodium acetate;(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; In water; N,N-dimethyl-formamide; at 80℃; under 4137.29 Torr; for 16h;autoclave; A suspension of 5-bromo-3-cyanoindazole (3 g, 13.51 mmol), palladium dichloride 1,1'-bis(diphenylphosphino)ferrocene (1.76 g, 2.16 mmol), sodium acetate (3.32 g, 40.5 mmol), dimethylformamide (1 mL) in methanol (100 mL) was degassed, and kept under carbon monoxide (80 psi) pressure at 80 C. in a autoclave for 16 hours. The mixture was diluted with water (50 mL), filtered through Celite bed and the filtrate was concentrated. The obtained residue was acidified with 10% citric acid solution and extracted with ethyl acetate (2*100 mL). The combined organic layers were washed with brine (50 mL), dried over anhydrous sodium sulfate and concentrated. The obtained crude product was purified by column chromatography (100-200 mesh silica gel) using 10% ethyl acetate in chloroform as eluent to afford methyl 3-cyano-1H-indazole-5-carboxylate (1.8 g, 68%) as a solid. 1HNMR (CDCl3) δ ppm 10.8 (s, 1H), 8.7 (s, 1H), 8.22 (d, 1H), 7.64 (d, 1H), 4.0 (s, 3H).
68% With sodium acetate;1,1'-bis-(diphenylphosphino)ferrocene; palladium dichloride; In N,N-dimethyl-formamide; at 80℃; under 4137.29 Torr; for 16h;Autoclave; A suspension of 5-bromo-3-cyanoindazole (3 g, 13.51 mmol), palladium dichloride 1,1'-bis(diphenylphosphino)ferrocene (1.76 g, 2.16 mmol), sodium acetate (3.32 g, 40.5 mmol), dimethylformamide (1 mL) in methanol (100 mL) was degassed, and kept under carbon monoxide (80 psi) pressure at 80 C in a autoclave for 16 hours. The mixture was diluted with water (50 mL), filtered through Celite bed and the filtrate was concentrated. The obtained residue was acidified with 10% citric acid solution and extracted with ethyl acetate (2 x 100mL). The combined organic layers were washed with brine (50 mL), dried over anhydrous sodium sulfate andconcentrated. The obtained crude product was purified by column chromatography (100-200 mesh silica gel) using 10% ethyl acetate in chloroform as eluent to afford methyl 3-cyano-1H-indazole-5-carboxylate (1 .8 g, 68%) as a solid. 1 HNMR (CDCI3) ppm 10.8 (s, 1 H), 8.7 (s, 1 H), 8.22 (d, 1 H), 7.64 (d, 1 H), 4.0 (s, 3H).
 

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