6-Oxabicyclo[3.1.0]hexane → HCID 57460866, compound

HRID 1674222Notes

Reaction equation

HRID 1674222 reaction equation
[CH2:1]([C:3]1[N:4]([C:28]2[CH:33]=[CH:32][C:31]([OH:34])=[CH:30][CH:29]=2)[C:5](=[O:27])[C:6]([CH2:12][C:13]2[CH:18]=[CH:17][C:16]([C:19]3[C:20]([C:25]#[N:26])=[CH:21][CH:22]=[CH:23][CH:24]=3)=[CH:15][CH:14]=2)=[C:7]([CH2:9][CH2:10][CH3:11])[N:8]=1)[CH3:2].[CH:35]12[O:40][CH:39]1[CH2:38][CH2:37][CH2:36]2.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C(=O)C>[CH2:1]([C:3]1[N:4]([C:28]2[CH:33]=[CH:32][C:31]([O:34][CH:38]3[CH2:37][CH2:36][CH2:35][C@H:39]3[OH:40])=[CH:30][CH:29]=2)[C:5](=[O:27])[C:6]([CH2:12][C:13]2[CH:18]=[CH:17][C:16]([C:19]3[C:20]([C:25]#[N:26])=[CH:21][CH:22]=[CH:23][CH:24]=3)=[CH:15][CH:14]=2)=[C:7]([CH2:9][CH2:10][CH3:11])[N:8]=1)[CH3:2]

Participants

5

Reactant 3

HCID 92446-Oxabicyclo[3.1.0]hexaneHCID 10796Cesium carbonateHCID 57460841HCID 57460841, compound

Product 1

HCID 57460866HCID 57460866, compoundYield 50.2%

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Conditions

Temperature
120 °C

Procedure

To a solution of 4′-{[2-ethyl-1-(4-hydroxyphenyl)-6-oxo-4-propyl-1,6-dihydropyrimidin-5-yl]methyl}biphenyl-2-carbonitrile (0.99 g) in N,N-dimethylacetamide (10 mL) were added 6-oxabicyclo[3.1.0]hexane (0.56 g) and cesium carbonate (1.4 g), and the mixture was stirred at 120° C. for 24 hr. The mixture was allowed to cool to room temperature. The insoluble material was filtered off, diluted with ethyl acetate, washed with 1 M hydrochloric acid, saturated sodium hydrogen carbonate and saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by silica gel chromatography to give the title compound (0.59 g, 50%) as a solid.

Workup

  1. temperatureto cool to room temperature
  2. filtrationThe insoluble material was filtered off
  3. additiondiluted with ethyl acetate
  4. washwashed with 1 M hydrochloric acid, saturated sodium hydrogen carbonate and saturated brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. customthe residue was purified by silica gel chromatography

Sources & evidence

ORD record
ord-47400b7d732443ca9c40a2c40c94d0e5
Source dataset
uspto-grants-2011_08
Patent number
US07998968B2

Reaction notes

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