Acetic Anhydride → Ethanethioic acid trans-(+/-)-S-[5-[[Acetyl(phenylmethoxy)amino]methyl]tetrahydro-3-furanyl]ester

HRID 1600106Notes

Reaction equation

HRID 1600106 reaction equation
[C:1]1([CH2:7][O:8][N:9]([CH2:18][C@@H:19]2[O:23][CH2:22][C@@H:21]([S:24][C:25](=[O:27])[CH3:26])[CH2:20]2)[C:10](OCC(Cl)(Cl)Cl)=[O:11])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:28](OC(=O)C)(=O)C>C(O)(=O)C.C(OCC)(=O)C.[Zn]>[C:10]([N:9]([CH2:18][C@@H:19]1[O:23][CH2:22][C@@H:21]([S:24][C:25](=[O:27])[CH3:26])[CH2:20]1)[O:8][CH2:7][C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1)(=[O:11])[CH3:28]

Participants

6

Reactant 2

HCID 7918Acetic AnhydrideHCID 86752473Ethanethioic acid trans-(+/-)-S-[tetrahydro-5-[[(phenylmethoxy)[(2,2,2-trichloroethoxy)carbonyl]amino]methyl]-3-furanyl] ester

Product 1

HCID 86750754Ethanethioic acid trans-(+/-)-S-[5-[[Acetyl(phenylmethoxy)amino]methyl]tetrahydro-3-furanyl]ester

Reagents, catalysts & solvents 3

HCID 23994ZincCatalystHCID 176Acetic AcidSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a room temperature solution, under argon, of 0.188 g of product from Example 71 in 2.3 ml of glacial acetic acid is added 0.269 g of zinc dust.The reaction is stirred 10 minutes and 155 microliter of acetic anhydride is added. The reaction is stirred at room temperature overnight, diluted with ethyl acetate and filtered. The filtrate is concentrated in vacuo to give 0.110 g of the desired product.

Workup

  1. customdust.The reaction
  2. stirringThe reaction is stirred at room temperature overnight
  3. filtrationfiltered
  4. concentrationThe filtrate is concentrated in vacuo

Sources & evidence

ORD record
ord-bf4a992f0ea640378ff19be9f98f1005
Source dataset
uspto-grants-1998_04
Patent number
US05744465

Reaction notes

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