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Chemical Structure| 938435-66-6 Chemical Structure| 938435-66-6

Structure of 938435-66-6

Chemical Structure| 938435-66-6

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Product Details of [ 938435-66-6 ]

CAS No. :938435-66-6
Formula : C13H9ClN2O2
M.W : 260.68
SMILES Code : O=[N+](C1=CC=C(C=C1)/C=C/C2=CN=C(Cl)C=C2)[O-]
English Name :(E)-2-Chloro-5-(4-nitrostyryl)pyridine

Safety of [ 938435-66-6 ]

Application In Synthesis of [ 938435-66-6 ]

* 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 [ 938435-66-6 ]

[ 938435-66-6 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 938435-66-6 ]
  • [ 1205550-99-7 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 7 steps 1.1: sodium hydride / 1,4-dioxane / 3 h / 20 °C 1.2: 12 h / 20 °C 2.1: sodium sulfide nonahydrate / ethanol; water / 2 h / Reflux 3.1: para-thiocresol / methanol / 2.5 h / Reflux 4.1: sodium tetrahydroborate / 1,2-dimethoxyethane / 1 h / 100 °C 5.1: ethanol; water / 12 h / 20 °C 6.1: copper(ll) sulfate pentahydrate / methanol / 12 h / 20 °C 7.1: triethylamine; dmap / dichloromethane / 3 h / 20 °C
  • 2
  • [ 938435-66-6 ]
  • [ 373-45-5 ]
  • [ 938435-67-7 ]
YieldReaction ConditionsOperation in experiment
38% Stage #1: 2-(2-(2-fluoroethoxy)ethoxy)ethanol With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 0.5h; Stage #2: (E)-2-chloro-5-(4-nitrostyryl)pyridine In N,N-dimethyl-formamide; mineral oil at 100℃; for 2h; 9 i-Fiuoro-3,6-dioxooctan-i-oi (600 mg, 3.92 mmol) was added into a mixture of sodium hydride (528 mg, 60 % dispersion in mineral oil, 13.2 nimol) in anhydrous DMF (30 mL) at 0 °C. i1e resulting mixture was stirred at room temperature for 0.5 h, then (E)-2- ch1oro-5-(4-nitrostyxyi)pyxdine (866 mg, 3.32 mmol) was added. The reaction mixture was stirred at 100 °c for 2 hours and cooled down. Ethyl acetate and water was added, the organiclayer was separated, washed with brine, dried over anhydrous Na2SO, After filtration, the filtrate was evaporated under rotovap. The residue was purified by on a silica column to give product (E)-2-(2-(2-(2-fluoroethoxy)ethoxy)ethoxy)-5-(4-nitrostyiyl)pyridine, 480 mg, yield 38%. Orbitrap ESI-MS caicd, for C19H21FN205 37614 377.16.
 

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