Aluminum → HCID 13019671, compound

HRID 971398Notes

Reaction equation

HRID 971398 reaction equation
[C:1]([C:5]1[O:11][CH:10]2[CH:7]([C:8](=[O:26])[N:9]2[C:12](=[C:23]([CH3:25])[CH3:24])[C:13]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[O:14])[N:6]=1)([O:3][CH3:4])=[O:2].[Al]>O1CCCC1.C(OCC)(=O)C>[C:1]([CH:5]1[O:11][CH:10]2[CH:7]([C:8](=[O:26])[N:9]2[C:12](=[C:23]([CH3:24])[CH3:25])[C:13]([O:15][CH2:16][C:17]2[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=2)=[O:14])[NH:6]1)([O:3][CH3:4])=[O:2]

Participants

5

Reactant 2

HCID 5359268AluminumHCID 13019670HCID 13019670, compound

Product 1

HCID 13019671HCID 13019671, compoundYield 66.8%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

A solution of 32.78 g of benzyl α-(3-carbomethoxy-7-oxo-4-oxa-2,6-diaza-bicyclo[3.2.0]hept-2-en-6-yl)-α-isopropylideneacetate in 500 ml of tetrahydrofuran containing 5% water is mixed with aluminium amalgam which has been prepared from 22.95 g of aluminium and 0.5% aqueous solution of mercuric chloride, and the mixture stirred at room temperature for 50 minutes. The reaction mixture is diluted with ethyl acetate and filtrated through a layer of Hyflo Super Cel. The filtrate is dried on sodium sulfate and concentrated under reduced pressure to yield the residue, which is crystallized from ether to yield 22.02 g of benzyl α-(3ξ-carbomethoxy-7-oxo-4-oxa-2,6-diaza-bicyclo[3.2.0]heptan-6-yl)-α-isopropylideneacetate in 61% yield.

Workup

  1. filtrationfiltrated through a layer of Hyflo Super Cel
  2. customThe filtrate is dried on sodium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customto yield the residue, which
  5. customis crystallized from ether

Sources & evidence

ORD record
ord-57509c13001e4e1581caed7700ea73bb
Source dataset
uspto-grants-1979_07
Patent number
US04159984

Reaction notes

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