Hydrochloric Acid → HCID 20476260, compound

HRID 905317Notes

Reaction equation

HRID 905317 reaction equation
[NH2:1][CH:2]([C:7]([OH:9])=[O:8])[CH2:3][CH2:4][S:5][CH3:6].[O-:10][C:11]#[N:12].[K+].Cl>O>[C:7]([OH:9])(=[O:8])[CH2:2][NH:1][C:11]([NH2:12])=[O:10].[NH2:1][CH:2]([C:7]([OH:9])=[O:8])[CH2:3][CH2:4][S:5][CH3:6]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 876(+-)-MethionineHCID 11378442Potassium cyanate

Product 1

HCID 20476260HCID 20476260, compoundYield 115.2%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
70 °C

Procedure

150 Grams (1 mole) of DL-methionine and 100 g (1 mole) of potassium cyanate having 80% purity were mixed with 700 ml of water and stirred at 70° C. for 1 hour. After cooling to room temperature, the reaction solution was adjusted to pH 2~3 with 12% hydrochloric acid to obtain 154 g of DL-methionine hydantoic acid having a melting point of 95°~98° C.

Workup

  1. temperatureAfter cooling to room temperature

Sources & evidence

ORD record
ord-e910f42169ca48b798ab6151ffd935a0
Source dataset
uspto-grants-1983_12
Patent number
US04423175

Reaction notes

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