Hydrochloric Acid → Glucosamine

HRID 1032810Notes

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].C(=O)(O)[O-].[Na+].Cl.C([BH3-])#N.[Na+]>>[NH2:5][C@H:4]([C@H:6]([C@@H:8]([C@@H:10]([CH2:12][OH:13])[OH:11])[OH:9])[OH:7])[CH:3]=[O:2]

Participants

Reactant 4

HCID 313Hydrochloric Acid

HCID 516892Sodium Bicarbonate

HCID 2723635(3R,4R,5S,6R)-3-amino-6-(hydroxymethyl)oxane-2,4,5-triol hydrochloride

HCID 5003444Sodium cyanoborohydride

Product 1

HCID 3034366Glucosamine

Procedure

Reactions of carboxymethyl cellulose sodium salt (0.5-1.0% w/v) were carried out with glucosamine-hydrochloride (1.5-3.0% w/v) in the presence of equimolar amounts of base, such as a sodium bicarbonate solution (0.55-1.1% w/v) to neutralize the hydrochloride, sodium cyanoborohydride as reducing reagent (0.27-0.50% w/v), at room temperature, producing 2-amino-2-deoxy-glucose derivatives of carboxymethyl cellulose with nitrogen incorporation values of 2.60-3.07%, as shown in Table 2, page 17.

Sources & evidence

ORD record: ord-a813bd79ab244967a6d468f87f5d51df
Source dataset: uspto-grants-1990_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04959461

Reaction notes

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