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Chemical Structure| 1616070-39-3 Chemical Structure| 1616070-39-3

Structure of 1616070-39-3

Chemical Structure| 1616070-39-3

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Product Details of [ 1616070-39-3 ]

CAS No. :1616070-39-3
Formula : C5H2ClF3N2
M.W : 182.53
SMILES Code : FC(C1=NN=CC(Cl)=C1)(F)F
MDL No. :MFCD28681006

Safety of [ 1616070-39-3 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P305+P351+P338

Application In Synthesis of [ 1616070-39-3 ]

* 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 [ 1616070-39-3 ]

[ 1616070-39-3 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 1616070-39-3 ]
  • [ 4522-35-4 ]
  • [ 1616070-37-1 ]
YieldReaction ConditionsOperation in experiment
To <strong>[4522-35-4]3-iodopyrazole</strong> (124 mg, 0.641 mmol) in DMF (2 mL)was added potassiumtert-butoxide (53 mg, 0.472 mmol) at 0 C. The mixture was stirred at roomtemperature for 15 min. It was transfered into a solution of 5- chloro-3-(trifluoromethyl)pyridazine (78 mg, 0.427 mmol) in DMF (2 mL) at 0 C. Itwas warmed to room temperature, stirring for 30 min. It was diluted withEt0Ac(20 mL), washed with water (3 x 20 niL), the combined aqueous layerswere extracted with EtOAc (30 mL), the combined organic layers were washedwith brine (30 mL), dried over Na2S04, filtered and concentrated. The residuewas purified by flash chromatography (ISCO Combiflash, 12 g, 0-1 00% EtOAcin hexanes) to give a mixture of<strong>[4522-35-4]3-iodopyrazole</strong> and the desired product (1 :2,180 mg). It was disolved in anhydrous CH2Cb (2 mL) and added a little bit ofDMAP and of di-tert-butyl dicarbonate (~ 100 mg). It was stirred at roomtemperature for 10 min and purified by flash chromatography (IS COCombiflash, 0-40% EtOAc in hexanes) to give 5-(3-iodo-1H-pyrazol-1-yl)-3-(trifluoromethyl)pyridazine, as white solid. LCMS calc. = 340.95, found =340.84 (M+H/. 1H NMR (500 MHz, CHCb-d): 6 9.78 (d, J= 2.5 Hz, 1 H);8.17(d,J=2.5Hz, 1 H); 8.04(d,J=2.7Hz, 1 H); 6.84(d,J=2.7Hz, 1 H).
To <strong>[4522-35-4]3-iodopyrazole</strong> (124 mg, 0.641 mmol) in DMF (2 mL)was added potassium teri-butoxide (53 mg, 0.472 mmol) at 0 C. The mixture was stirred at room temperature for 15 min. It was transferee into a solution of 5- chloro-3- (trifluoromethyl)pyridazine (78 mg, 0.427 mmol) in DMF (2 mL) at 0 C. It was warmed to room temperature, stirring for 30 min. It was diluted with EtOAc(20 mL), washed with water (3 x 20 mL), the combined aqueous layers were extracted with EtOAc (30 mL), the combined organic layers were washed with brine (30 mL), dried over Na2S04, filtered and concentrated. The residue was purified by flash chromatography (ISCO Combiflash, 12 g, 0-100% EtOAc in hexanes) to give a mixture of <strong>[4522-35-4]3-iodopyrazole</strong> and the desired product (1 :2, 180 mg). It was disolved in anhydrous CH2C12 (2 mL) and added a little bit of DMAP and of di-teri-butyl dicarbonate (~ 100 mg). It was stirred at room temperature for 10 min and purified by flash chromatography (ISCO Combiflash, 0-40%> EtOAc in hexanes) to give 5-(3-iodo-lH-pyrazol-l-yl)-3- (trifluoromethyl)pyridazine, as a white solid. LCMS calc. = 340.95, found = 340.84 (M+H)+. NMR (500 MHz, CHCl3-d): delta 9.78 (d, J= 2.5 Hz, 1 H); 8.17 (d, J= 2.5 Hz, 1 H); 8.04 (d, J= 2.7 Hz, 1 H); 6.84 (d, J= 2.7 Hz, 1 H).
Step C: 5-(3-Iodo-lH-pyrazol-l -yl)-3-(trifluoiOmethyl)pyridazine To <strong>[4522-35-4]3-iodopyrazole</strong> (124 mg, 0.641 mmol) in DMF (2 mL)was added potassium tert- butoxide (53 mg, 0.472 mmol) at 0 C. The mixture was stirred at room temperature for 15 min. It was transfered into a solution of 5- chloro-3- (trifluoromethyl)pyridazine (78 mg, 0.427 mmol) in DMF (2 mL) at 0 C. It was wanned to room temperature, stirring for 30 min. It was diluted with EtOAc(20 mL), washed with water (3 x 20 mL), the combined aqueous layers were extracted with EtOAc (30 mL), the combined organic layers were washed with brine (30 mL), dried over Na2S04, filtered and concentrated. The residue was purified by flash chromatography (ISCO Combiflash, 12 g, 0-100% EtOAc in hexanes) to give a mixture of <strong>[4522-35-4]3-iodopyrazole</strong> and the desired product (1 :2, 180 mg). It was disolved in anhydrous CH2C12 (2 mL) and added a little bit of DMAP and of di-fert-butyl dicarbonate (~ 100 mg). It was stirred at room temperature for 10 min and purified by flash chromatography (ISCO Combiflash, 0-40% EtOAc in hexanes) to give 5 -(3- iodo-lH-pyrazol-l-yl)-3-(trifluoromethyl)pyridazine, as white solid. LCMS calc. = 340.95, found = 340.84 (M+H)+. NMR (500 MHz, CHCl3-d): delta 9.78 (d, J= 2.5 Hz, 1 H); 8.17 (d, J= 2.5 Hz, 1 H); 8.04 (d, J= 2.7 Hz, 1 H); 6.84 (d, J = 2.7 Hz, 1 H).
 

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