Ammonia → D-Glucosamine

HRID 1923427Notes

Reaction equation

HRID 1923427 reaction equation
Cl.[OH:2][CH:3]1[O:11][C@H:10]([CH2:12][OH:13])[C@@H:8]([OH:9])[C@H:6]([OH:7])[C@H:4]1[NH2:5].N.C(=O)=O>O>[OH:2][CH:3]1[O:11][C@H:10]([CH2:12][OH:13])[C@@H:8]([OH:9])[C@H:6]([OH:7])[C@H:4]1[NH2:5]

Participants

5

Reactant 3

HCID 222AmmoniaHCID 280Carbon DioxideHCID 2723635(3R,4R,5S,6R)-3-amino-6-(hydroxymethyl)oxane-2,4,5-triol hydrochloride

Product 1

HCID 439213D-Glucosamine

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

The coating composition is prepared by mixing 42.2 g of water with 40 g of the acrylic binder of example 1. 15.0 g of D-glucosamine hydrochloride is then added followed by an appropriate amount of aqueous ammonia (25% by weight) in order to render the pH alkaline (above 7.0). The emulsion is then stirred at room temperature for 30 minutes. The resulting coating composition is then applied by a coating bar (K1 to K5) onto the desired substrate (for example paper or polymer film) and imaged using a CO2 IR laser to give brown markings of high contrast (0.5 to 4 watt, 100 to 1000 mm/s).

Workup

  1. customThe coating composition is prepared
  2. customThe resulting coating composition is then applied by a coating bar
  3. customto give brown markings of high contrast (0.5 to 4 watt, 100 to 1000 mm/s)

Sources & evidence

ORD record
ord-c72c5feb60674578815ce9ed0d31fedc
Source dataset
uspto-grants-2012_05
Patent number
US08178277B2

Reaction notes

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