Diisopropylethylamine → HCID 19786594, compound

HRID 1196594Notes

Reaction equation

HRID 1196594 reaction equation
[C:1]1([C:7]2[C:11]3[CH:12]([OH:29])[CH:13]([CH2:16][CH2:17]OS(C4C=CC(C)=CC=4)(=O)=O)[CH2:14][CH2:15][C:10]=3[O:9][N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(N(C(C)C)CC)(C)C.Cl.[F:40][C:41]1[CH:54]=[CH:53][C:44]([C:45]([CH:47]2[CH2:52][CH2:51][NH:50][CH2:49][CH2:48]2)=[O:46])=[CH:43][CH:42]=1>CN(C=O)C>[F:40][C:41]1[CH:42]=[CH:43][C:44]([C:45]([CH:47]2[CH2:52][CH2:51][N:50]([CH2:17][CH2:16][CH:13]3[CH:12]([OH:29])[C:11]4[C:7]([C:1]5[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=5)=[N:8][O:9][C:10]=4[CH2:15][CH2:14]3)[CH2:49][CH2:48]2)=[O:46])=[CH:53][CH:54]=1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 3084438p-Fluorophenyl 4-piperidyl ketone hydrochlorideHCID 19786608HCID 19786608, compound

Product 1

HCID 19786594HCID 19786594, compoundYield 15%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

To a solution consisting of 3-phenyl-5-(2-tosyloxyethyl)-4-hydroxy-4,5,6,7-tetrahydro-1,2-benzisoxazole (8.0 g) and DMF (100 ml) was added diisopropylethyl amine (6.7 ml) and 4-(4-fluorobenzoyl)piperidine hydrochloride (7.1 g) at room temperature with stirring. The flask was flushed with nitrogen and warmed to 80° C. for 4.5 hours. Upon cooling to room temperature, water and ethyl acetate were added to the reaction mixture. The layers were separated and the aqueous phase was extracted 3 times with ethyl acetate. The combined organic layers were washed with brine and dried (MgSO4). Filtration and concentration gave the crude product. Purification via flash column chromatography (silica gel, 2% triethylamine/ether) afforded 1.3 g of 5-[2-(4-(4-fluorobenzoyl)-1-piperidinyl)-ethyl]-3-phenyl-4-hydroxy-4,5,6,7-tetrahydro-1,2-benzisoxazole.

Workup

  1. customThe flask was flushed with nitrogen
  2. temperatureUpon cooling to room temperature
  3. additionwater and ethyl acetate were added to the reaction mixture
  4. customThe layers were separated
  5. extractionthe aqueous phase was extracted 3 times with ethyl acetate
  6. washThe combined organic layers were washed with brine
  7. dry with materialdried (MgSO4)
  8. filtrationFiltration and concentration
  9. customgave the crude product
  10. customPurification via flash column chromatography (silica gel, 2% triethylamine/ether)

Sources & evidence

ORD record
ord-a734a4eb9eaf4470ad47c5fc6b150b84
Source dataset
uspto-grants-1992_05
Patent number
US05114936

Reaction notes

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