L-Lysine → Chromium lysinate

HRID 434186

Reaction equation

HRID 434186 reaction equation
[OH-].[Cr+3:2].[OH-].[OH-].[NH2:5][C@H:6]([C:12]([OH:14])=[O:13])[CH2:7][CH2:8][CH2:9][CH2:10][NH2:11].CCCCCC>O>[NH2:5][C@H:6]([C:12]([O-:14])=[O:13])[CH2:7][CH2:8][CH2:9][CH2:10][NH2:11].[Cr+3:2].[NH2:5][C@H:6]([C:12]([O-:14])=[O:13])[CH2:7][CH2:8][CH2:9][CH2:10][NH2:11].[NH2:5][C@H:6]([C:12]([O-:14])=[O:13])[CH2:7][CH2:8][CH2:9][CH2:10][NH2:11]

Participants

5

Reactant 3

HCID 5962L-LysineHCID 8058HexaneHCID 166720Chromichydroxide

Product 1

HCID 86759314Chromium lysinate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

The recovered chromium hydroxide was then placed into a beaker provided with a reflux condenser and Dean Stark water trap. 43.8 grams (0.3 Mole) of lysine was added and thereafter 100 ml hexane was added to this mixture and stirred and boiled at atmospheric pressure for 3 hours. In the course of the reaction about 5.3-5.5 ml of water was removed from the reaction media and acquired in the Dean Stark apparatus. The reaction mixture was then cooled and filtered yielding 48.2 grams of chromium lysinate in the form of a fine blue-gray powder.

Workup

  1. customprovided with a reflux condenser
  2. customwas removed from the reaction media
  3. temperatureThe reaction mixture was then cooled
  4. filtrationfiltered

Sources & evidence

ORD record
ord-47d5f48291804c56a66a5f5ed5241f15
Source dataset
uspto-grants-2003_12
Patent number
US06670494B1

Linked notes

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