Hydrochloric Acid → HCID 131711537, compound

HRID 2287185Notes

Reaction equation

HRID 2287185 reaction equation
[C:1]([CH:5]1[O:11][CH:10]2[C:7]([C:33](=[O:41])[CH2:34][C:35]3[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=3)([C:8](=[O:32])[N:9]2[C:12](=[C:29]([CH3:31])[CH3:30])[C:13]([O:15][CH:16]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[O:14])[NH:6]1)([O:3]C)=[O:2].[OH-].[Na+].Cl>CC(C)=O.O>[C:1]([CH:5]1[O:11][CH:10]2[C:7]([C:33](=[O:41])[CH2:34][C:35]3[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=3)([C:8](=[O:32])[N:9]2[C:12](=[C:29]([CH3:30])[CH3:31])[C:13]([O:15][CH:16]([C:17]2[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=2)[C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)=[O:14])[NH:6]1)([OH:3])=[O:2]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 131711534HCID 131711534, compound

Product 1

HCID 131711537HCID 131711537, compoundYield 113.9%

Reagents, catalysts & solvents 2

HCID 180AcetoneSolventHCID 962WaterSolvent2×

Procedure

To a solution of 11.3 g of diphenylmethyl α-(3ξ-carbomethoxy-2-phenylacetyl-7-oxo-4-oxa-2,6-diazabicyclo[3.2.0]heptan-6-yl)-α-isopropylideneacetate in 230 ml of acetone is added a solution of 900 mg of sodium hydroxide in 36 ml of water under ice-cooling, and the mixture stirred for 1 hour, then diluted with water, acidified with hydrochloric acid, and then extracted with methylene chloride. The extract is washed with water, dried on magnesium sulfate and concentrated under reduced pressure to yield 12.54 g of diphenylmethyl α-(3ξ-carboxy-2-phenylacetyl-7-oxo-4-oxa-2,6-diazabicyclo[3.2.0]heptan-6-yl)-α-isopropylideneacetate as crude product.

Workup

  1. temperaturecooling
  2. extractionextracted with methylene chloride
  3. washThe extract is washed with water
  4. customdried on magnesium sulfate
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-0c5ab982cb314ae9b5df27b3f1ac1744
Source dataset
uspto-grants-1981_05
Patent number
US04269773

Reaction notes

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