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Potassium bisaccharate, also known as D-Saccharic acid potassium salt, is a naturally occurring compound found in plants and animals. It is produced by the chemical oxidation of glucose with nitric acid and is characterized by its light, off-white powder form with a pH of 3.5. Potassium bisaccharate exhibits chemotherapeutic properties, lowers cholesterol, and has antimutagenic activity. It is slightly soluble in cold water but becomes soluble in hot water, acid, or alkaline solutions and is combustible.

576-42-1

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576-42-1 Usage

Uses

Used in Pharmaceutical Industry:
Potassium bisaccharate is used as an intermediate in the synthesis of D-Glucaro-1,4-lactone Monohydrate (G415600), which is an anticancer agent. This application takes advantage of its chemotherapeutic properties to contribute to the development of cancer treatments.
Used in Chelating Applications:
Potassium bisaccharate serves as a chelating agent, which is essential in various industrial processes. Its ability to form complexes with metal ions makes it useful in applications where metal ion sequestration is required.
Used in Rubber Formulations:
In the rubber industry, potassium bisaccharate is used to enhance the properties of rubber formulations. Its chelating properties can improve the stability and performance of rubber products.
Used in Metal Plating:
Potassium bisaccharate is utilized in metal plating processes due to its chelating capabilities. It helps in the efficient deposition of metals on various surfaces, improving the quality and durability of the plated products.
Used in Soap and Detergent Industry:
In the soap and detergent industry, potassium bisaccharate is used to improve the cleaning properties of these products. Its chelating action helps to remove dirt and stains more effectively, providing better cleaning results.

Check Digit Verification of cas no

The CAS Registry Mumber 576-42-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,7 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 576-42:
(5*5)+(4*7)+(3*6)+(2*4)+(1*2)=81
81 % 10 = 1
So 576-42-1 is a valid CAS Registry Number.
InChI:InChI=1/C6H10O8.K/c7-1(3(9)5(11)12)2(8)4(10)6(13)14;/h1-4,7-10H,(H,11,12)(H,13,14);/q;+1/p-1

576-42-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name Potassium bisaccharate

1.2 Other means of identification

Product number -
Other names GLUCARIC ACID POTASSIUM SALT

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:576-42-1 SDS

576-42-1Synthetic route

D-Glucose
2280-44-6

D-Glucose

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Conditions
ConditionsYield
With potassium hydroxide; chlorine; potassium bromide; 4-acetylamino-2,2,6,6-tetramethylpiperidine-N-oxyl In water at 0 - 5℃; pH=11.4 - 11.7; Product distribution; Further Variations:; Reagents;77%
D-glucose
50-99-7

D-glucose

A

C6H5O9(3-)*3K(1+)

C6H5O9(3-)*3K(1+)

B

C6H5O9(3-)*3K(1+)

C6H5O9(3-)*3K(1+)

C

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Conditions
ConditionsYield
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; sodium D-gluconate; potassium hydroxide In water at 5℃; pH=12.2; Electrochemical reaction; optical yield given as %de;A n/a
B n/a
C 70%
D-Glucuronic acid
6556-12-3

D-Glucuronic acid

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Conditions
ConditionsYield
With peracetic acid; potassium hydroxide; ethylenediaminetetraacetic acid; cyfluthrin; potassium hydrogencarbonate; potassium bromide In water
D-glucaric acid
87-73-0

D-glucaric acid

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Conditions
ConditionsYield
Stage #1: D-glucaric acid With potassium hydroxide In water
Stage #2: With hydrogenchloride In water pH=3.4; Cooling with ice;
83.2 g
alpha-D-glucopyranose
492-62-6

alpha-D-glucopyranose

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Conditions
ConditionsYield
With oxygen; potassium hydroxide In water at 50℃; under 750.075 Torr; for 4h;
With platinum on activated charcoal; oxygen; potassium hydroxide at 50℃; under 750.075 Torr; for 4h; pH=4;
L-gulose
6027-89-0

L-gulose

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Conditions
ConditionsYield
Stage #1: L-gulose With nitric acid; potassium hydroxide; sodium nitrite pH=Ca. 9 - Ca. 10;
Stage #2: With nitric acid at 15 - 30℃; for 12h; pH=Ca. 3 - Ca. 4;
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

A

D-glucaric acid
87-73-0

D-glucaric acid

B

D-Glucaro-1,4-lacton
389-36-6

D-Glucaro-1,4-lacton

C

D-glucaro-6,3-lactone
2782-04-9

D-glucaro-6,3-lactone

Conditions
ConditionsYield
With H(1+) resin Rexyn 100(H) In water for 3h; lactonization;A n/a
B n/a
C 69.1%
ethanol
64-17-5

ethanol

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

A

diethyl glucarate
45214-05-9

diethyl glucarate

B

(S)-((2S,3R,4R)-3,4-Dihydroxy-5-oxo-tetrahydro-furan-2-yl)-hydroxy-acetic acid ethyl ester

(S)-((2S,3R,4R)-3,4-Dihydroxy-5-oxo-tetrahydro-furan-2-yl)-hydroxy-acetic acid ethyl ester

C

D-glucarate-6,3-lactone ethyl ester
261900-70-3

D-glucarate-6,3-lactone ethyl ester

Conditions
ConditionsYield
With REXYN 101(H) at 55℃; for 4h;A n/a
B n/a
C 58.9%
methanol
67-56-1

methanol

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

A

glucaric acid dimethyl ester
3868-17-5

glucaric acid dimethyl ester

B

methyl D-glucarate 1,4-lactone
22140-16-5

methyl D-glucarate 1,4-lactone

C

Methyl D-glucarate 6,3-lactone
155976-55-9

Methyl D-glucarate 6,3-lactone

Conditions
ConditionsYield
With hydrogenchloride for 4h; Heating;A n/a
B 58.89%
C n/a
With hydrogenchloride for 4h; Heating;
[Cu4(μ-OH)(μ-α-D-glucose-1-phosphate(2-))2(2,2'-bipyridyl)4(H2O)2](NO3)3*10H2O

[Cu4(μ-OH)(μ-α-D-glucose-1-phosphate(2-))2(2,2'-bipyridyl)4(H2O)2](NO3)3*10H2O

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

[Cu4(μ-α-D-glucose-1-phosphate(2-))2(μ-D-glucaratoH)2(2,2'-bipyridyl)4](NO3)2*2H2O

[Cu4(μ-α-D-glucose-1-phosphate(2-))2(μ-D-glucaratoH)2(2,2'-bipyridyl)4](NO3)2*2H2O

Conditions
ConditionsYield
In water; N,N-dimethyl-formamide K glucarate (2 equiv.) in H2O added to soln. of Cu complex in DMF; stirred for 5 min; solvent removed under reduced pressure; crystd. from MeOH at room temp. for several d; crystals collected; washed with Et2O; dried under vac.; elem. anal.;49%
[Cu4(μ-OH)(μ-α-D-glucose-1-phosphate(2-))2(2,2'-bipyridyl)4(H2O)2](NO3)3*10H2O

[Cu4(μ-OH)(μ-α-D-glucose-1-phosphate(2-))2(2,2'-bipyridyl)4(H2O)2](NO3)3*10H2O

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

([Cu4(μ-α-D-glucose-1-phosphate(2-))2(μ-D-glucarateH)2(2,2'-bipyridyl)4](NO3)2*8H2O)(n)

([Cu4(μ-α-D-glucose-1-phosphate(2-))2(μ-D-glucarateH)2(2,2'-bipyridyl)4](NO3)2*8H2O)(n)

Conditions
ConditionsYield
In N,N-dimethyl-formamide K glucarate (1 equiv.) added to soln. of Cu complex in DMF; stirred for 5 min; solvent removed under reduced pressure; crystd. from MeOH at room temp. for several d; crystals collected; washed with Et2O; dried under vac.; elem. anal.;34%
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

butan-1-ol
71-36-3

butan-1-ol

glucaric acid di-n-butyl ester

glucaric acid di-n-butyl ester

Conditions
ConditionsYield
With Amberlyst-15 at 75℃; for 1.5h; Time;25%
methanol
67-56-1

methanol

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

glucaric acid dimethyl ester
3868-17-5

glucaric acid dimethyl ester

Conditions
ConditionsYield
With ion-exchange resin + form>
diethyl sulfate
64-67-5

diethyl sulfate

ethyl iodide
75-03-6

ethyl iodide

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Tetraaethylzuckersaeure-diaethylester
109721-79-1

Tetraaethylzuckersaeure-diaethylester

Conditions
ConditionsYield
(i) aq. NaOH, (ii) /BRN= 1209714/, (iii) /BRN= 505934/, Ag2O; Multistep reaction;
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

dimethyl sulfate
77-78-1

dimethyl sulfate

tetramethyl-d-saccharic acid
14307-81-4

tetramethyl-d-saccharic acid

Conditions
ConditionsYield
(i) aq. NaOH, (ii) /BRN= 635994/; Multistep reaction;
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

dimethyl sulfate
77-78-1

dimethyl sulfate

methyl iodide
74-88-4

methyl iodide

O2,O3,O4,O5-tetramethyl-D-glucaric acid dimethyl ester
102264-45-9

O2,O3,O4,O5-tetramethyl-D-glucaric acid dimethyl ester

Conditions
ConditionsYield
(i) aq. NaOH, (ii) /BRN= 635994/, (iii) /BRN= 969135/, Ag2O; Multistep reaction;
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

methyl iodide
74-88-4

methyl iodide

O2,O3,O4,O5-tetramethyl-D-glucaric acid dimethyl ester
102264-45-9

O2,O3,O4,O5-tetramethyl-D-glucaric acid dimethyl ester

Conditions
ConditionsYield
(i) aq. NH3, AgNO3, (ii) /BRN= 969135/, DMF, (iii) /BRN= 969135/, Ag2O; Multistep reaction;
formaldehyd
50-00-0

formaldehyd

D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

2,4:3,5-di-O-methylene-D-glucaric acid dimethyl ester
4539-77-9, 7595-91-7, 114006-01-8, 114421-41-9

2,4:3,5-di-O-methylene-D-glucaric acid dimethyl ester

Conditions
ConditionsYield
With sulfuric acid4.77 g
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

(2R,3S,4S,5S)-5-(2-Amino-ethylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

(2R,3S,4S,5S)-5-(2-Amino-ethylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 91.7 percent / methanol / 3 h / 95 °C
3: acetyl chloride / 3 h / 20 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

(2R,3S,4S,5S)-5-(4-Amino-butylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

(2R,3S,4S,5S)-5-(4-Amino-butylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 94.9 percent / methanol / 3 h / 95 °C
3: acetyl chloride / 3 h / 20 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

(2R,3S,4S,5S)-5-(6-Amino-hexylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

(2R,3S,4S,5S)-5-(6-Amino-hexylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 90.9 percent / methanol / 3 h / 95 °C
3: acetyl chloride / 3 h / 20 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

6-[N-(2'-aminoethyl)]-D-glucaramide, sodium salt

6-[N-(2'-aminoethyl)]-D-glucaramide, sodium salt

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 91.7 percent / methanol / 3 h / 95 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

(2R,3S,4S,5S)-5-(8-Amino-octylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

(2R,3S,4S,5S)-5-(8-Amino-octylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 93.8 percent / methanol / 3 h / 95 °C
3: acetyl chloride / 3 h / 20 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

6-[N-(4'-aminobutyl)]-D-glucaramide, sodium salt

6-[N-(4'-aminobutyl)]-D-glucaramide, sodium salt

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 94.9 percent / methanol / 3 h / 95 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

(2R,3S,4S,5S)-5-(10-Amino-decylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

(2R,3S,4S,5S)-5-(10-Amino-decylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 90.3 percent / methanol / 3 h / 95 °C
3: acetyl chloride / 3 h / 20 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

6-[N-(6'-aminohexyl)]-D-glucaramide, sodium salt

6-[N-(6'-aminohexyl)]-D-glucaramide, sodium salt

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 90.9 percent / methanol / 3 h / 95 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

(2R,3S,4S,5S)-5-(12-Amino-dodecylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

(2R,3S,4S,5S)-5-(12-Amino-dodecylcarbamoyl)-2,3,4,5-tetrahydroxy-pentanoic acid methyl ester; hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 91.5 percent / methanol / 3 h / 95 °C
3: acetyl chloride / 3 h / 20 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

6-[N-(8'-aminooctyl)]-D-glucaramide, sodium salt

6-[N-(8'-aminooctyl)]-D-glucaramide, sodium salt

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 93.8 percent / methanol / 3 h / 95 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

6-[N-(10'-aminodecyl)]-D-glucaramide, sodium salt

6-[N-(10'-aminodecyl)]-D-glucaramide, sodium salt

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 90.3 percent / methanol / 3 h / 95 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

6-[N-(12'-aminododecyl)]-D-glucaramide, sodium salt

6-[N-(12'-aminododecyl)]-D-glucaramide, sodium salt

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 69.1 percent / H(1+) resin Rexyn 100(H) / H2O / 3 h
2: 91.5 percent / methanol / 3 h / 95 °C
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

N,N'-dimethyl-D-glucaramide
156016-05-6

N,N'-dimethyl-D-glucaramide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: HCl / 4 h / Heating
2: 90.9 percent / methanol; H2O / 2 h / Ambient temperature
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Dimethyl 2,3,4,5-tetrakis-O--D-glucarate

Dimethyl 2,3,4,5-tetrakis-O--D-glucarate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: HCl / 4 h / Heating
2: 1.) acetyl chloride, 2.) 1,1,1,3,3,3-hexamethyldisilazane, pyridine / 1.) MeOH, reflux, 12 h, 2.) r.t., 2 d
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Methyl 2,4,5-tris-O--D-glucarate 6,3-lactone

Methyl 2,4,5-tris-O--D-glucarate 6,3-lactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: HCl / 4 h / Heating
2: 1.) acetyl chloride, 2.) 1,1,1,3,3,3-hexamethyldisilazane, pyridine / 1.) MeOH, reflux, 12 h, 2.) r.t., 2 d
View Scheme
D-glucaric acid monopotassium salt
576-42-1

D-glucaric acid monopotassium salt

Methyl 2,3,5-tris-O--D-glucarate 1,4-lactone

Methyl 2,3,5-tris-O--D-glucarate 1,4-lactone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: HCl / 4 h / Heating
2: 1.) acetyl chloride, 2.) 1,1,1,3,3,3-hexamethyldisilazane, pyridine / 1.) MeOH, reflux, 12 h, 2.) r.t., 2 d
View Scheme
Multi-step reaction with 2 steps
1: HCl / 4 h / Heating
2: 1,1,1,3,3,3-hexamethyldisilazane, pyridine / methanol / Ambient temperature
View Scheme

576-42-1Relevant academic research and scientific papers

Modifications in the nitric acid oxidation of d-glucose

Smith, Tyler N.,Hash, Kirk,Davey, Cara-Lee,Mills, Heidi,Williams, Holly,Kiely, Donald E.

, p. 6 - 13 (2012)

The nitric acid oxidation of d-glucose was reinvestigated in an effort to better understand and improve the oxidation and subsequent work up steps. The oxidation was carried out using a computer controlled reactor employing a closed reaction flask under an atmosphere of oxygen which allowed for a catalytic oxidation process with oxygen as the terminal oxidant. Removal of nitric acid from product included the use of both diffusion dialysis and nanofiltration methodologies. Product analysis protocols were developed using ion chromatography.

Evidence of benzilic rearrangement during the electrochemical oxidation of D-glucose to D-glucaric acid

Ibert, Mathias,Fuerts, Patrick,Merbouh, Nabyl,Feasson, Christian,Marsais, Francis

, p. 512 - 518 (2011)

During the course of the 2,2,6,6-tetramethyl-1-piperidinyloxy free radical-catalyzed electrochemical oxidation of d-glucose to d-glucaric acid a new side-product was observed. This compound was isolated and identified as a tricarboxylic acid of unique structure, which was named maribersonic acid. Its structure was proven by different experiments coupled with several analytical methods, and its appearance during the electrochemical oxidation of d-glucose was rationalized through a thorough study.

METHOD FOR PRODUCING ADIPAMIDE AS INTERMEDIATE FOR PRODUCTION OF RAW MATERIAL FOR BIO-BASED NYLON

-

Paragraph 0044-0053, (2020/03/17)

Disclosed is a method for producing adipamide, which may include the steps of: (a) reacting glucose, nitric acid (HNO3), sodium nitrite (NaNO2) and potassium hydroxide (KOH) to produce a glucaric acidpotassium salt, (b) producing glucamide by reacting the glutaric acid potassium salt, with an acidic solution and removing a potassium ion from the glucaric acid potassium salt, (c) preparing an reaction admixture by adding the glucamide and a catalyst to hydrogen halide and acetic acid, and (d) treating the reaction admixture with hydrogen gas in a reactor thereby producing the adipamide.

METHOD OF PREPARING D-GLUCARO-1,4:6,3-DILACTONE

-

Paragraph 0065-0067, (2020/03/09)

Disclosed is a method of preparing d-glucaro-1,4:6,3-dilactone using an organic acid or a salt thereof, such that d-glucaro-1,4:6,3-dilactone having high purity can be obtained using potassium glucarate as the organic acid, and simultaneously, the economic efficiency of the preparation process can be remarkably improved.

METHOD OF PREPARING ADIPIC ACID

-

Paragraph 0072-0074, (2020/03/23)

Disclosed is a method of preparing adipic acid from d-glucaro-1,4:6,3-dilactone, particularly using a rhenium catalyst and a noble metal catalyst. Further the method may include using an environmentally friendly solvent such as water. Thus, the obtained adipic acid may have high purity as a final product and economic efficiency of the preparation process may be improved.

METHOD FOR PRODUCING ADIPAMIDE AS INTERMEDIATE FOR PRODUCTION OF RAW MATERIAL FOR BIO-BASED NYLON

-

Paragraph 0044-0053, (2020/03/23)

Disclosed is a method for producing adipamide, which may include the steps of: (a) reacting glucose, nitric acid (HNO3), sodium nitrite (NaNO2) and potassium hydroxide (KOH) to produce a glucaric acid potassium salt, (b) producing glucamide by reacting the glutaric acid potassium salt, with an acidic solution and removing a potassium ion from the glucaric acid potassium salt, (c) preparing an reaction admixture by adding the glucamide and a catalyst to hydrogen halide and acetic acid, and (d) treating the reaction admixture with hydrogen gas in a reactor thereby producing the adipamide.

Method of oxidization using nitric acid

-

Page/Page column 6, (2008/06/13)

A controlled nitric acid process employing oxygen and nitric acid as co-oxidants is used to oxidize organic compounds subject to nitric acid oxidation, to their corresponding carboxylic acids. Oxidation of some carbohydrates by this process can produce one or more of their corresponding acid forms. The process is carried out at moderate temperatures, typically in the range of 20° C. to 45° C. in a closed reactor, with oxygen gas being introduced into the reaction chamber as needed in order to sustain the reaction. Computer controlled reactors allow for careful and reproducible control of reaction parameters. Nitric acid can be recovered by a distillation/evaporation process, or by diffusion dialysis, the aqueous solution made basic with inorganic hydroxide, and the residual inorganic nitrate removed using a filtration (nanofiltration) device. The method eliminates issues of thermal control of the oxidation, release of nitrogen into the atmosphere, and post-reaction difficulties in the removal of nitric acid and inorganic nitrates.

Process for selective oxidation of primary alcohols

-

, (2008/06/13)

Primary alcohols, especially in carbohydrates, can be selectively oxidized to aldehydes and carboxylic acids in a low-halogen process by using a peracid in the presence of a catalytic amount of a di-tertiary-alkyl nitroxyl (TEMPO) and a catalytic amount of halide. The halide is preferably bromide and the process can be carried out at nearly neutral to moderately alkaline pH (5-11). The peracid can be produced or regenerated by means of hydrogen peroxide or oxygen. The process is advantageous for producing uronic acids and for introducing aldehyde groups which are suitable for crosslinking and derivatization.

4-AcNH-Tempo-catalyzed oxidation of aldoses to aldaric acids using chlorine or bromine as terminal oxidants

Merbouh, Nabyl,Bobbitt, James M.,Brueckner, Christian

, p. 64 - 78 (2007/10/03)

The 4-AcNH-TEMPO-catalyzed oxidation of D-glucose to D-glucaric acid using elemental chlorine or bromine as the terminal oxidant is reported. The pH and temperature of the reactions were closely controlled to be between 0-5 deg C and pH 11.5, respectively. Spectroscopically (1H NMR) determined yields of glucarate were greater than 90 percent; yields of crystalline monopotassium D-glucarate (or disodium D-glucarate), isolated and purified by precipitation, were between 70 and 85 percent. Oxidations of mannose to mannaric acid and galactose to mucic acid were also demonstrated.

Facile nitroxide-mediated oxidations of D-glucose to D-glucaric acid

Merbouh, Nabyl,Francois Thaburet, Jean,Ibert, Mathias,Marsais, Francis,Bobbitt, James M

, p. 75 - 78 (2007/10/03)

The oxidation of D-(+)-glucose to D-glucaric acid using the TEMPO-like nitroxide oxidation catalyst, 4-acetamido-2,2,6,6-tetramethyl-1-piperidinyloxy (4-acetamido-TEMPO) was carried out using several oxidizing agents and co-catalyst. The pH and temperature of the reactions were closely monitored to decrease degradations during the oxidation, and several isolation methods were explored.

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