Glyphosate → Glyphosate

HRID 1077664

Reaction equation

HRID 1077664 reaction equation
[P:1]([CH2:5][NH:6][CH2:7][C:8]([OH:10])=[O:9])([OH:4])([OH:3])=[O:2].[CH:11]([NH2:14])([CH3:13])[CH3:12]>C(O)C>[CH:11]([NH3+:14])([CH3:13])[CH3:12].[P:1]([CH2:5][NH:6][CH2:7][C:8]([OH:10])=[O:9])([OH:4])([OH:3])=[O:2]

Participants

5

Reactant 2

HCID 3496GlyphosateHCID 6363Isopropylamine

Product 2

HCID 3496GlyphosateHCID 3364502Isopropylaminium

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

50 g (0.3 moles) of N-(phosphonomethyl)-glycine are reacted with 17.5 g (0.3 moles) of isopropylamine in 200 ml of 96% ethanol at room temperature. The mixture is refluxed for half an hour, filtered, concentrated by evaporation and crystallized. 69 g (0.3 moles) of crystalline, dried mono-isopropylammonium salt of N-(phosphonomethyl)-glycine are obtained. The product is not hygroscopic, readily soluble in water. Melting range 161°-163° C. It contains 73.9% N-(phosphonomethyl)-glycine Yield 99.95%. Characteristic absorption bands (FT-IR spectroscopy, cm-1) 1660, 1600, 1553, 1545, 1075, 513, 475, characteristic values of crystal-lattice-planes measured with X-ray diffraction: 11.0, 9.06, 5.94, 5.54, 4.13, 3.71. (α type crystals).

Workup

  1. temperatureThe mixture is refluxed for half an hour
  2. filtrationfiltered
  3. concentrationconcentrated by evaporation
  4. customcrystallized

Sources & evidence

ORD record
ord-849f1160bdbd493e83e49669efe41efe
Source dataset
uspto-grants-1996_08
Patent number
US05543562

Linked notes

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