Acetic Acid → HCID 19090878, compound

HRID 2050687Notes

Reaction equation

HRID 2050687 reaction equation
[OH:1][CH:2]([CH2:16][N:17]1C(=O)C2=CC=CC=C2C1=O)[CH2:3][P:4]([CH:9]([O:13][CH2:14][CH3:15])[O:10][CH2:11][CH3:12])(=[O:8])[O:5][CH2:6][CH3:7].O.[BH4-].[Na+].C(O)(=O)C>C(O)(C)C>[NH2:17][CH2:16][CH:2]([OH:1])[CH2:3][P:4]([CH:9]([O:13][CH2:14][CH3:15])[O:10][CH2:11][CH3:12])(=[O:8])[O:5][CH2:6][CH3:7]

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 962WaterHCID 4311764Sodium borohydrideHCID 9978249HCID 9978249, compound

Product 1

HCID 19090878HCID 19090878, compound

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

To a solution of 1.0 g of ethyl 2-hydroxy-3-phthalimido-propyl(diethoxymethyl)phosphinate in 23 ml of isopropanol is added 4 ml of water. To this mixture is added 0.47 g of sodium borohydride and this is stirred for a period of 24 hours at room temperature. After this time 2.6 ml of glacial acetic acid are carefully added and the reaction heated to 80° for a period of 2 hours. After this time, the reaction is cooled to room temperature, the solvent evaporated under reduced pressure and the residue passed down a silica column using a mixture of one part ethyl acetate to one part ethanol as eluant. Ethyl 3-amino-2-hydroxy-propyl(diethoxymethyl)phosphinate is obtained as colourless oil, 31P=+45.8 and +45.2 ppm (CDCl3).

Workup

  1. temperaturethe reaction heated to 80° for a period of 2 hours
  2. temperatureAfter this time, the reaction is cooled to room temperature
  3. customthe solvent evaporated under reduced pressure
  4. additiona mixture of one part ethyl acetate to one part ethanol as eluant

Sources & evidence

ORD record
ord-0dd14571e0804674be7257d418125b2d
Source dataset
uspto-grants-1991_05
Patent number
US05013863

Reaction notes

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