Stannous chloride dihydrate → HCID 68756773, compound

HRID 1521656Notes

Reaction equation

HRID 1521656 reaction equation
[F:1][C:2]1[CH:19]=[CH:18][CH:17]=[C:16]([N+:20]([O-])=O)[C:3]=1[CH2:4][CH:5]([C:11]([O:13][CH2:14][CH3:15])=[O:12])[C:6]([O:8][CH2:9][CH3:10])=[O:7].O.O.Cl[Sn]Cl>C(O)C>[NH2:20][C:16]1[CH:17]=[CH:18][CH:19]=[C:2]([F:1])[C:3]=1[CH2:4][CH:5]([C:11]([O:13][CH2:14][CH3:15])=[O:12])[C:6]([O:8][CH2:9][CH3:10])=[O:7]

Participants

4

Reactant 2

HCID 61436Stannous chloride dihydrateHCID 21779975HCID 21779975, compound

Product 1

HCID 68756773HCID 68756773, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
70 °C

Procedure

To a stirred solution of diethyl 2-(2-fluoro-6-nitrobenzyl)malonate (146-2; 2.5 g, 0.0079 mol) in ethanol (30 mL) was added SnCl2.2H2O (8.9 g, 0.0395 mol) with constant stirring. The reaction mixture was heated at 70° C. for 0.5 h to 1 h. The reaction mixture was cooled to room temperature and then filtered through CELITE bed. The filtrate was basified with saturated Na2HCO3 solution and extracted with ethyl acetate (3×50 mL). The combined organic layer was washed with saturated aqueous sodium chloride solution, dried over sodium sulphate and concentrated under vacuum to afford the title compound. MS (M+1): 284.1.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. filtrationfiltered through CELITE bed
  3. extractionextracted with ethyl acetate (3×50 mL)
  4. washThe combined organic layer was washed with saturated aqueous sodium chloride solution
  5. dry with materialdried over sodium sulphate
  6. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-a0633b9b07124368b7148b4b697e37fb
Source dataset
uspto-grants-2015_07
Patent number
US09073929B2

Reaction notes

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