L-(+)-Cysteine → L-Cysteine, ZINC salt

HRID 1976515Notes

Reaction equation

HRID 1976515 reaction equation
C(=O)([O-])[O-].[Zn+2:5].[NH2:6][C@H:7]([C:10]([OH:12])=[O:11])[CH2:8][SH:9]>O>[NH2:6][C@H:7]([C:10]([O-:12])=[O:11])[CH2:8][SH:9].[Zn+2:5].[NH2:6][C@H:7]([C:10]([O-:12])=[O:11])[CH2:8][SH:9]

Participants

4

Reactant 2

HCID 5862L-(+)-CysteineHCID 19005Zinc Carbonate

Product 1

HCID 12969087L-Cysteine, ZINC salt

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Basic zinc carbonate (10 g) was added to a solution of cysteine in water (14.92 g/100 ml) and was heated under reflux for 16h with stirring. The off-white microcrystalline solid was collected by filtration, washed with water and dried in air. The empirical formula for the complex, as determined by thermogravimetric analysis, was; Zn[SCH2CH(NH2)CO2]. This empirical formula was confirmed by matching the Fourier transform infra-red spectrum for the product with a reference spectrum for this complex, Shindo and Brown, J.Am.Chem.Soc. 87 (1965) 1904-1909.

Workup

  1. temperaturewas heated
  2. filtrationThe off-white microcrystalline solid was collected by filtration
  3. washwashed with water
  4. customdried in air

Sources & evidence

ORD record
ord-b2c772f7563241cbbd590bb26d7a5adb
Source dataset
uspto-grants-2001_05
Patent number
US06228353B1

Reaction notes

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