Water → HCID 53868675, compound

HRID 264485Notes

Reaction equation

HRID 264485 reaction equation
O=[CH:2][CH2:3][CH:4]1[CH2:12][C:11]2[C:6](=[CH:7][C:8]([CH:13]([CH3:15])[CH3:14])=[CH:9][CH:10]=2)[C:5]1=O.O.[NH2:18][CH2:19][C@H:20]([OH:22])[CH3:21]>C1(C)C=CC=CC=1.C1(C)C=CC(S(O)(=O)=O)=CC=1>[CH:13]([C:8]1[CH:7]=[C:6]2[C:11]([CH2:12][C:4]3[CH:3]=[CH:2][N:18]([CH2:19][C@H:20]([OH:22])[CH3:21])[C:5]=32)=[CH:10][CH:9]=1)([CH3:15])[CH3:14]

Participants

6

Reactant 3

HCID 962WaterHCID 439938(2R)-1-aminopropan-2-olHCID 19036558HCID 19036558, compound

Product 1

HCID 53868675HCID 53868675, compoundYield 70%

Reagents, catalysts & solvents 2

HCID 6101p-Toluenesulfonic acidCatalystHCID 1140TolueneSolvent2×

Procedure

A solution of 2.16 g of (RS)-2-(2-oxoethyl)-6-isopropyl-1-indanone and 80 mg of p-toluenesulfonic acid in 70 ml of anhydrous toluene was heated on a water separator. A solution of 3.0 g of (R)-1-amino-2-propanol in 20 ml of anhydrous toluene was added dropwise to the boiling solution over a period of 5 minutes. Subsequently, the mixture was boiled for an additional 45 minutes, during which time the solvent was reduced to a volume of 20 ml. The cooled reaction mixture was purified by column chromatography on silica gel (ethyl acetate/toluene 1:1). 1.78 g (70%) of (R)-1-(7-isopropyl-1,4-dihydro-indeno[1,2-b]pyrrol-1-yl)-propan-2-ol were obtained as a brown oil.

Workup

  1. customThe cooled reaction mixture
  2. customwas purified by column chromatography on silica gel (ethyl acetate/toluene 1:1)

Sources & evidence

ORD record
ord-cbc9f4e370184cb0834d9740e668d023
Source dataset
uspto-grants-1997_07
Patent number
US05646173

Reaction notes

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