Glycine → HCID 86740511, compound

HRID 1583717Notes

Reaction equation

HRID 1583717 reaction equation
[C:1](=[S:8])([S:3][CH2:4][C:5]([OH:7])=[O:6])[NH2:2].[Na:9].[Na].[OH-].[Na+].N[CH2:14]C(O)=O.C[C@H](N)C(O)=O>C(=S)=S.O>[C:1](=[S:8])([S:3][CH:4]([C:5]([OH:7])=[O:6])[CH3:14])[NH2:2].[Na:9].[Na:9]

Participants

7

Reactant 4

HCID 750GlycineHCID 5950L-AlanineHCID 14798Sodium Hydroxide3×HCID 86740512HCID 86740512, compound2×

Product 1

HCID 86740511HCID 86740511, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6348Carbon DisulfideSolvent2×

Procedure

This example describes the preparation of disodium carboxymethyl dithiocarbamate useful as a suspressant in ore flotation processes. To a 1-Liter round bottom flask fitted with a stirrer, thermometer, reflux condenser and a dropping funnel was added 253 milliliters of water and 84.0 grams (2.1 moles) of sodium hydroxide. After the NaOH had completely dissolved and the temperature had cooled below about 30° C., 75.0 grams (1.0 mole) of glycine was added and the mixture stirred until it was dissolved. Over the next 6 hours 76.14 grams (1.0 mole) of CS2 was slowly added while the temperature was maintained below about 40° C. The reaction product mixture was considered to be a 40 percent aqueous solution of disodium carboxymethyl dithiocarbamate and was used as prepared in the subsequent ore flotation processes. Similarly, disodium 1-carboxyethyl dithiocarbamate was prepared from α-alanine, CS2 and NaOH.

Workup

  1. customTo a 1-Liter round bottom flask fitted with a stirrer
  2. temperaturethermometer, reflux condenser and a dropping funnel
  3. temperaturethe temperature had cooled below about 30° C.
  4. dissolutionwas dissolved
  5. temperaturewas maintained below about 40° C
  6. customas prepared in the subsequent ore flotation processes

Sources & evidence

ORD record
ord-ff5f41159b3c4cf6a7a91af232bc8575
Source dataset
uspto-grants-1985_11
Patent number
US04554068

Reaction notes

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