Potassium Carbonate → Benzyl 3-(2-azidoethyloxy)-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate

HRID 2058686Notes

Reaction equation

HRID 2058686 reaction equation
[N:1]12[C:7](=[O:8])[CH2:6][CH:5]1[CH2:4][C:3](=[O:9])[CH:2]2[C:10]([O:12][CH2:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)=[O:11].FC(S(O[CH2:28][CH2:29][N:30]=[N+:31]=[N-:32])(=O)=O)(F)F.C(=O)([O-])[O-].[K+].[K+]>C=C.CCOCC>[N:30]([CH2:29][CH2:28][O:9][C:3]1[CH2:4][CH:5]2[N:1]([C:7](=[O:8])[CH2:6]2)[C:2]=1[C:10]([O:12][CH2:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)=[O:11])=[N+:31]=[N-:32]

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 12804725Benzyl 3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylateHCID 198314892-Azidoethyl trifluoromethanesulfonate

Product 1

HCID 15136300Benzyl 3-(2-azidoethyloxy)-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 6325EthyleneSolvent

Conditions

Temperature
25 °C

Procedure

A mixture of benzyl 1-azabicyclo[3.2.0]heptane-3,7-dione-2-carboxylate (26 mg) and 2-azidoethyl trifluoromethyl sulfonate (26 mg) in anhydrous acetene (0.5 ml) containing powdered potassium carbonate (28 mg) is stirred at 25° C. in a capped flask for 2 hrs. The mixture is diluted with anhydrous ether (5 ml) and filtered. The filtrate is washed with water (2 ml) and brine, dried with MgSO4, filtered, and evaporated in vacuo. The residue is purified by plc on a silica gel GF plate to afford benzyl 3-(2-azidoethyloxy)-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate.

Workup

  1. filtrationfiltered
  2. washThe filtrate is washed with water (2 ml) and brine
  3. dry with materialdried with MgSO4
  4. filtrationfiltered
  5. customevaporated in vacuo
  6. customThe residue is purified by plc on a silica gel GF plate

Sources & evidence

ORD record
ord-ff84bcf4c4c04fd0ab0b30c53b437e1d
Source dataset
uspto-grants-1982_03
Patent number
US04318912

Reaction notes

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