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Chemical Structure| 65847-34-9 Chemical Structure| 65847-34-9

Structure of 65847-34-9

Chemical Structure| 65847-34-9

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Product Details of [ 65847-34-9 ]

CAS No. :65847-34-9
Formula : C19H15N3
M.W : 285.34
SMILES Code : NC1=CC=C(C2=NC3=CC=CC=C3N2C4=CC=CC=C4)C=C1

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Application In Synthesis of [ 65847-34-9 ]

* 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 [ 65847-34-9 ]

[ 65847-34-9 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 2620-76-0 ]
  • [ 65847-34-9 ]
YieldReaction ConditionsOperation in experiment
82.8% 30.0 g (85.9 mmol) (<strong>[2620-76-0]2-(4-bromophenyl)-1-phenyl-1H-benzo[d]imidazole</strong>), (Benzophenone imine) 18.7 g (103 mmol),2.5 g (4.30 mmol) Pd(dba)2, 5.4 g (8.59 mmol) BINAP,16.5 g (171 mmol) tert-butoxy sodium and 300 mL of toluene was stirred at reflux for 12 h. The reaction mixture was cooled to room temperature and dissolved in chloroform. The chloroform solution was passed through a pad of celite and concentrated under reduced pressure. The obtained compound was suspended in 300 mL of tetrahydrolan, and 15 mL of 6N hydrochloric acid was slowly added thereto, followed by stirring at 50 C for 1 hour.After cooling to room temperature, the obtained solid was filtered under reduced pressure and washed with acetone. The filtered wet was suspended in 300 mL of water, basified with 50 mL of saturated sodium carbonate solution (pH> 8), and stirred at room temperature for 4 hours.The obtained precipitate was filtered under reduced pressure, washed with water and dried under reduced pressure to obtain 20.3 g (yield: 82.8%) of a white solid compound (intermediate (15)).
54.7% With Benzophenone imine; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; bis(dibenzylideneacetone)-palladium(0); sodium t-butanolate; In toluene; at 110℃; for 2h; 60.0 g (171.80 mmol) of the intermediate (1) in a 1-neck 3000 mL flask, Benzophenone imine 37.4 g (206.20 mmol) And 4.9 g (8.59 mmol) of Pd (dba) 2 after addition of 1143 mL of toluene, 10.7 g (17.20 mmol) of BINAP, 49.5 g (515.4 mmol) of NaOt-Bu was added thereto, followed by stirring at 110 C. for 2 hours. After the reaction was terminated and cooled to room temperature and extracted with EA. The extracted organic layer was passed through a celite pad to remove inorganics, and then solvent was removed by distillation under reduced pressure. The obtained compound was diluted in 700 mL of THF, and then slowly added to 100 mL of 6N HCl, acidified (pH 8) with saturated Na 2 CO 3 solution, extracted with chloroform, water was removed with MgSO 4, and the solvent was removed by distillation under reduced pressure. The obtained compound was purified by SiO 2 column chromatography (DCM: EA = 1: 1). The obtained solid was EA-treated to obtain 26.8 g (yield: 54.7%) of a beige solid compound (intermediate (2)).
  • 2
  • [ 65847-34-9 ]
  • [ 2620-76-0 ]
  • [ 1071810-69-9 ]
YieldReaction ConditionsOperation in experiment
46.3% With tri-tert-butyl phosphine; bis(dibenzylideneacetone)-palladium(0); sodium t-butanolate; In 5,5-dimethyl-1,3-cyclohexadiene; at 120℃; for 12h; 1.5 g (5.26 mmol) of Intermediate (2), 3.9 g (11.04 mmol) of Intermediate (1), 302.3 mg (0.53) of Pd (dba) 2 in a 1 neck 250 mL flask. mmol), 212.7 mg (1.05 mmol) of 50% t-Bu3P, 1.5 g (15.77 mmol) of NaOtBu and 70 mL of Xylene were mixed and then at 120 C. The reaction was carried out for 12 hours. After the reaction was terminated and cooled to room temperature, water was added, extracted with chloroform and the solvent was removed under reduced pressure. The obtained compound was purified by silica gel column chromatography (Hex: EA: 20: 1), dissolved in acetone, and solidified with slowly dropwise addition of methanol to give 2.0 g of a compound 2-55 (LT18-35-301) as a yellow solid (yield: 46.3%).
 

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