Reaction equation
[P:1]([OH:4])([OH:3])[OH:2].Cl.[NH2:6][CH2:7][CH2:8][CH:9]([CH2:11][NH2:12])[OH:10].C=O>>[PH:1](=[O:2])([OH:4])[OH:3].[NH2:6][CH2:7][CH2:8][CH:9]([CH2:11][NH2:12])[OH:10]Participants
5
Procedure
To a 500 ml three neck flask fitted with a reflux condenser and dropping funnel is added 131.2 grams (1.12 moles) 70% phosphorous acid and 207.2 grams (2.1 moles) 37% hydrochloric acid. Aminoethyl ethanolamine, 42.1 grams (0.40 mole) is then added dropwise while stirring. The mixture is then heated to reflux and 97.3 grams (1.2 moles) 37% aqueous formaldehyde is added dropwise during 1 hour. Reflux is continued for 2 hours after completion of the formaldehyde addition. The mixture is then cooled and bottled.
Workup
- temperatureThe mixture is then heated
- temperatureto reflux
- temperatureReflux
- temperatureThe mixture is then cooled
Sources & evidence
- ORD record
- ord-f5e410aebe704cc896a775c07499a96a
- Source dataset
- uspto-grants-1990_01
- Patent number
- US04895600
Linked notes
Loading…