Reaction equation
C[O:2][C:3](=[O:13])[CH2:4][CH2:5][N:6]([CH3:12])[CH2:7][CH2:8][CH2:9][CH2:10][CH3:11]>O>[CH3:12][N:6]([CH2:7][CH2:8][CH2:9][CH2:10][CH3:11])[CH2:5][CH2:4][C:3]([OH:13])=[O:2]Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
68.8 g (367.4 mmol) N-methyl-N-pentyl-β-alanine methyl ester was hydrolyzed by refluxing with 138 ml water. Water was distilled off and 300 ml diethyl carbonate were added, followed by azeotropic distillation of diethyl carbonate/water (30 ml) to remove residual water. About 290 ml of a diethyl carbonate solution containing 63 g N-methyl-N-pentyl-β-alanine was obtained which could directly be used for the subsequent bisphosphorylation step.
Workup
- distillationWater was distilled off
- addition300 ml diethyl carbonate were added
- distillationfollowed by azeotropic distillation of diethyl carbonate/water (30 ml)
- customto remove residual water
- additionAbout 290 ml of a diethyl carbonate solution containing 63 g N-methyl-N-pentyl-β-alanine
- customwas obtained which
Sources & evidence
- ORD record
- ord-61203c1e27a947bb92be1994604cf1c6
- Source dataset
- uspto-grants-2010_02
- Patent number
- US07662990B2
Linked notes
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