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3658-77-3

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3658-77-3 Usage

Description

Furaneol is a very important aroma chemical and is a key flavoring compound found in many kinds of fruits. It can be chemically formed through different carbohydrates during the Mainlard reaction. It can also be synthesized by yeast, bacteria and plants and play some physiological effects. Study has shown that it can suppress the phosphorylation of cAMP response element binding protein, underlying its potential role as an effective inhibitor of hyperpigmentation. It also has the potential to become an effective antimicrobial agent for human beings.

Chemical Properties

Different sources of media describe the Chemical Properties of 3658-77-3 differently. You can refer to the following data:
1. Furaneol is a constituent of pineapple and strawberry aroma and is also found in other foods. It forms colorless crystals (mp 77–79°C) with a relatively weak, nonspecific odor. Dilute solutions develop a pineapple, strawberrylike odor.
2. white to light yellow crystal powde
3. 4-Hydroxy-2,5-dimethyl-3(2H)-furanone has a fruity caramel or "burnt pineapple" aroma. May be synthesized from dimethyl- 3,4-dihyroxyfuran-2,5-dicarboxylate.
4. Furaneol has a sweet, fruity, strawberry, hot sugar, fruity caramel or “burnt pineapple” aroma.

Occurrence

Reported found in guava, grapes, pineapple, raspberry, strawberry fruit and jam, rye bread, Swiss cheese, boiled beef, beer, cocoa, coffee, tea, filberts, almonds, oatmeal, Arctic bramble, yellow passion fruit, mango, shoyu, fermented soy sauce, litchi, malt and Cape gooseberry.

Uses

2,5-Dimethyl-4-hydroxy-3(2H)-furanone is a component of meat essence composition. 2,5-Dimethyl-4-hydroxy-3(2H)-furanone is used in the flavor and perfume industry due to its sweet strawberry aroma.

Definition

ChEBI: A member of the class of furans that is 2,5-dimethylfuran carrying additional oxo and hydroxy groups at positions 3 and 4 respectively. It has been found particularly in strawberries and other such fruits.

Preparation

Furaneol can be prepared by cyclization of hexane-2,5-diol-3,4-dione in the presence of an acidic catalyst.The dione is the ozonization product of 2,5- hexynediol, which is obtained by ethynylation of acetaldehyde. In another process, a dialkyl ??-methyldiglycolate (formed from an alkyl lactate and an alkyl monochloroacetate) is reacted with dialkyl oxalate in the presence of a sodium alkoxide and dimethylformamide. The reaction product is cyclized, alkylated, hydrolyzed, and decarboxylated.In another process, a dialkyl ??-methyldiglycolate (formed from an alkyl lactate and an alkyl monochloroacetate) is reacted with dialkyl oxalate in the presence of a sodium alkoxide and dimethylformamide. The reaction product is cyclized, alkylated, hydrolyzed, and decarboxylated .

Aroma threshold values

Detection: 0.03 to 60 ppb; aroma characteristics at 0.1%: sweet, slightly burnt brown caramellic, cotton candy with a savory nuance

Taste threshold values

Taste characteristics at 0.10 to 1.0 ppm: sweet caramellic cooked meaty and fruity nuances

Synthesis Reference(s)

The Journal of Organic Chemistry, 57, p. 5023, 1992 DOI: 10.1021/jo00044a047Synthesis, p. 377, 1987

General Description

4-Hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF, DMHF) is a caramel-like smelling compound, identified in Maillard reaction systems based on pentoses by GC-MS and GCMS/MS. Solubility data of DMHF in six different solvents over the temperature range from 283.15K to 313.15K under atmospheric pressure of 0.10 MPa has been examined by dynamic method. Separation of the enantiomers of DMHF by capillary electrophoretic method has been reported. Commercially it is synthesized from L-rhamnose. DMHF has been identified as acidic odorant in Thai premium fish sauce samples by aroma extract dilution analysis (AEDA). It is identified as key aroma compound in the distiller′s grains (DG) from wheat. It is reported as the main flavor compound in strawberries and its biosynthesis has been reported. HDMF has been found in various fruits such as pineapples strawberries and grapes, as well as in beef broth , roasted coffee, bread crust, roasted beef, roasted sesame seeds and stewed beef.

Flammability and Explosibility

Notclassified

Trade name

Furaneol? (Firmenich).

Biochem/physiol Actions

Taste at 0.10 to 1.0 ppm

Synthesis

From dimethyl-3,4-dihydroxyfuran-2,5-dicarboxylate

References

Pickenhagen, Wilhelm, et al. "Estimation of 2,5-dimethyl-4-hydroxy-3(2H)-furanone (FURANEOLA?) in cultivated and wild strawberries, pineapples and mangoes." Journal of the Science of Food & Agriculture 32.11(2010):1132-1134. Farine, Jean Pierre, et al. "4-Hydroxy-5-methyl-3(2H)-furanone and 4-Hydroxy-2,5-dimethyl-3(2H)-furanone, Two Components of the Male Sex Pheromone of Eurycotis floridana (Walker) (Insecta, Blattidae, Polyzosteriinae)." Bioscience Biotechnology & Biochemistry 57.12(2014):2026-2030. Schwab, W. "Natural 4-hydroxy-2,5-dimethyl-3(2H)-furanone (Furaneol?). " Molecules 18.6(2013):6936-51.

Check Digit Verification of cas no

The CAS Registry Mumber 3658-77-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,6,5 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3658-77:
(6*3)+(5*6)+(4*5)+(3*8)+(2*7)+(1*7)=113
113 % 10 = 3
So 3658-77-3 is a valid CAS Registry Number.
InChI:InChI=1/C6H8O3/c1-3-5(7)6(8)4(2)9-3/h3-4H,1-2H3/t3-,4?/m1/s1

3658-77-3 Well-known Company Product Price

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  • Aldrich

  • (40703)  4-Hydroxy-2,5-dimethyl-3(2H)-furanone  ≥99.0% (GC)

  • 3658-77-3

  • 40703-25G

  • 1,019.07CNY

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3658-77-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-hydroxy-2,5-dimethylfuran-3-one

1.2 Other means of identification

Product number -
Other names FURANEOL

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
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:3658-77-3 SDS

3658-77-3Synthetic route

sodium 2,5-dimethyl-2,5-dihydrofuran-2,3,4-triolate

sodium 2,5-dimethyl-2,5-dihydrofuran-2,3,4-triolate

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With sulfuric acid at 10 - 20℃; for 1h; Reagent/catalyst;96.3%
glucofuraneol tetraacetate
121063-57-8

glucofuraneol tetraacetate

A

furaneol
3658-77-3

furaneol

B

2,5-dimethyl-4-hydroxy-3<2H>-furanone β-D-glucopyranoside
121063-56-7

2,5-dimethyl-4-hydroxy-3<2H>-furanone β-D-glucopyranoside

Conditions
ConditionsYield
With sodium methylate In methanol for 4h; Ambient temperature;A 8%
B 92%
hexane-3,4-cis-diol-2,5-dione
25566-16-9

hexane-3,4-cis-diol-2,5-dione

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With sodium phosphate dibasic dodecahydrate; phosphoric acid In acetic acid butyl ester; water at 70 - 80℃; for 0.833333h; Reagent/catalyst; Flow reactor;86%
With disodium hydrogenphosphate; sodium hydrogencarbonate In water; ethyl acetate at 75℃; for 36h; pH=7; pH-value; Solvent; Temperature; Inert atmosphere;6.8 g
6-deoxy-D-glucose
488-79-9

6-deoxy-D-glucose

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With piperidine; acetic acid In ethanol at 80℃; for 24h;85%
Multi-step reaction with 3 steps
1: 90 percent / NaBH4 / H2O / 0.5 h / Ambient temperature
2: 95 percent / sorbitol dehydrogenase (SDH), NAD, α-ketoglutarate monosodium salt, (NH4)2SO4, GluDH / H2O / 10 h / pH 8.2
3: piperidine, glacial acetic acid / ethanol / 20 h / 80 °C
View Scheme
3,4-hexanedione-2,5-diyl bis(tert-butyl carbonate)

3,4-hexanedione-2,5-diyl bis(tert-butyl carbonate)

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With oxalic acid for 5h; Heating;85%
methyl bromide
74-83-9

methyl bromide

ethyl 3,4-dihydroxy-5-methyl-2-furancarboxylate
68786-17-4

ethyl 3,4-dihydroxy-5-methyl-2-furancarboxylate

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With hydrogenchloride; sodium hydroxide In water81.4%
ethyl 3,4-dihydroxy-5-methyl-2-furancarboxylate
68786-17-4

ethyl 3,4-dihydroxy-5-methyl-2-furancarboxylate

methyl 5-methyl-3,4-dihydroxy-2-furoate

methyl 5-methyl-3,4-dihydroxy-2-furoate

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With hydrogenchloride; sodium hydroxide In water; dimethyl sulfate76.6%
2,5-bisacetoxyhexane-3,4-dione
111480-79-6

2,5-bisacetoxyhexane-3,4-dione

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With oxalic acid In water for 3.2h; Heating;66%
2,2'-Dimethoxy-3,3'-dimethyl-[2,2']bioxiranyl
80037-18-9

2,2'-Dimethoxy-3,3'-dimethyl-[2,2']bioxiranyl

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With sulfuric acid In methanol for 2h; Heating;59%
L-Rhamnose
3615-41-6

L-Rhamnose

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With sodium dihydrogenphosphate; L-Lysine hydrochloride; sodium hydroxide In water at 110℃; for 0.75h; pH=6.5; Temperature; Concentration;56.7%
2,5-dihydroxy-4,4,-dibromo-3-hexanone
137142-62-2

2,5-dihydroxy-4,4,-dibromo-3-hexanone

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With triethylamine In ethanol for 2h; Heating;49%
(3R,4R)-3,4-dihydroxyhexane-2,5-dione
97805-19-1

(3R,4R)-3,4-dihydroxyhexane-2,5-dione

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With piperidine; acetic acid In water for 168h; Heating;48%
rhamnose monohydrate

rhamnose monohydrate

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With disodium hydrogenphosphate; sodium dihydrogenphosphate; GLUTATHIONE In acetic acid butyl ester at 100℃; for 3h; Reagent/catalyst; Time; Inert atmosphere;36%
fructose 1,6-diphosphate
34693-15-7

fructose 1,6-diphosphate

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With potassium hydroxide; hydrogen; sodium iodide; palladium on activated charcoal In methanol; water at 90℃; under 3102.9 Torr; for 24h;28.7%
Multi-step reaction with 3 steps
1: D-lactaldehyde, Aldolase, Triosephosphate isomerase / 60 h / Ambient temperature; pH 7.0, PAN-800 gel
2: 85 percent / H2O / 8 h / 90 °C / pH 1.0
3: piperidine, glacial acetic acid / ethanol / 20 h / 80 °C
View Scheme
β-6-deoxy-L-sorbose
60537-23-7

β-6-deoxy-L-sorbose

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With piperidine; acetic acid In ethanol at 80℃; for 20h; Yield given;
6-Deoxy-D-fructose (β form)
470-21-3

6-Deoxy-D-fructose (β form)

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With piperidine; acetic acid In ethanol at 80℃; for 20h; Yield given;
D-glucose
50-99-7

D-glucose

glycine
56-40-6

glycine

A

5-hydroxymethyl-2-furfuraldehyde
67-47-0

5-hydroxymethyl-2-furfuraldehyde

B

furaneol
3658-77-3

furaneol

C

5-hydroxymaltol
1073-96-7

5-hydroxymaltol

D

2-hydroxymethyl-5-methylfuran
3857-25-8

2-hydroxymethyl-5-methylfuran

Conditions
ConditionsYield
In water at 95℃; for 120h; Product distribution; other reaction time, other temperature;
2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one
28564-83-2

2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one

A

furaneol
3658-77-3

furaneol

B

5-hydroxymaltol
1073-96-7

5-hydroxymaltol

C

2-methyltetrahydrofuran-3-one
3188-00-9

2-methyltetrahydrofuran-3-one

D

2,3-Pentanedione
600-14-6

2,3-Pentanedione

E

2-hydroxy-3-methylcyclopent-2-en-1-one
80-71-7

2-hydroxy-3-methylcyclopent-2-en-1-one

F

hydroxy-2-propanone
116-09-6

hydroxy-2-propanone

Conditions
ConditionsYield
With water at 150℃; for 1h; also 2,3-dihydro-3,5-dihydroxy-6(13C)methyl-4(H)-pyran-4-one; var. temp., pH, and time; effect of 2,4-dihydroxy-2,5-dimethyl-3(2H)-furanone;
2,5-dimethyl-4-propionyloxy-3(2H)-furanone
219867-18-2

2,5-dimethyl-4-propionyloxy-3(2H)-furanone

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With Soerensen buffer In water at 30℃; Product distribution; time dependence;
2,5-dimethyl-3,4-di(propionyloxy)furan

2,5-dimethyl-3,4-di(propionyloxy)furan

A

furaneol
3658-77-3

furaneol

B

2,5-dimethyl-4-propionyloxy-3(2H)-furanone
219867-18-2

2,5-dimethyl-4-propionyloxy-3(2H)-furanone

Conditions
ConditionsYield
With Soerensen buffer In water at 30℃; Product distribution; time dependence;
D-xylose
58-86-6

D-xylose

A

2-Methylpyrazine
109-08-0

2-Methylpyrazine

B

furaneol
3658-77-3

furaneol

C

4-hydroxy-5-methyl-3[2H]-furanone
19322-27-1

4-hydroxy-5-methyl-3[2H]-furanone

D

hydroxy-2-propanone
116-09-6

hydroxy-2-propanone

Conditions
ConditionsYield
With sodium hydroxide; 2,6-diaminohexanoic acid hydrochloride; potassium hydrogencarbonate In water at 100℃; under 750.06 Torr; for 5h; pH=10; Product distribution; Kinetics; Further Variations:; Reagents; pH-values; Pressures; Condensation; Maillard reaction; Amadori rearrangement;
L-rhamnose
73-34-7

L-rhamnose

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With citrate phosphate buffer at 70℃; for 48h; pH=3; Product distribution; Further Variations:; Reagents; pH-values; Reaction partners; effect of Cys and AcCys; degradation;
D-glucose
50-99-7

D-glucose

A

4-hydroxy-2-(hydroxymethyl)-5-methyl-3(2H)-furanone
17678-20-5

4-hydroxy-2-(hydroxymethyl)-5-methyl-3(2H)-furanone

B

furaneol
3658-77-3

furaneol

C

2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one
28564-83-2

2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one

Conditions
ConditionsYield
With glycine In water for 4h; Maillard reaction; Heating;A n/a
B n/a
C 7.1 mg
D-Glucose
2280-44-6

D-Glucose

bovine serum albumin

bovine serum albumin

A

furaneol
3658-77-3

furaneol

B

2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one
28564-83-2

2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one

C

4-hydroxy-5-methyl-3[2H]-furanone
19322-27-1

4-hydroxy-5-methyl-3[2H]-furanone

Conditions
ConditionsYield
In phosphate buffer; water at 37℃; for 2191.5h; pH=7.4; Maillard reaction;
fructose-1,6-bisphosphate
488-69-7

fructose-1,6-bisphosphate

furaneol
3658-77-3

furaneol

Conditions
ConditionsYield
With NADPH In various solvent(s) at 30℃; for 30h; pH=7.5; Product distribution; Further Variations:; Reagents; pH-values; Temperatures; cofactor; substrate conc.; reaction time;
furaneol
3658-77-3

furaneol

butan-1-ol
71-36-3

butan-1-ol

2,5-dimethyl-4-butoxy-3(2H)-furanone

2,5-dimethyl-4-butoxy-3(2H)-furanone

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene for 16h; Heating;90%
methanol
67-56-1

methanol

furaneol
3658-77-3

furaneol

2,5-dimethyl-4-methoxy-3(2H)-furanone
4077-47-8

2,5-dimethyl-4-methoxy-3(2H)-furanone

Conditions
ConditionsYield
With toluene-4-sulfonic acid for 6h; Heating;80%
furaneol
3658-77-3

furaneol

ethanol
64-17-5

ethanol

2,5-dimethyl-4-ethoxy-3(2H)-furanone

2,5-dimethyl-4-ethoxy-3(2H)-furanone

Conditions
ConditionsYield
With toluene-4-sulfonic acid for 6h; Heating;80%
furaneol
3658-77-3

furaneol

ethyl vinyl ether
109-92-2

ethyl vinyl ether

2,5-dimethyl-4-[(1'-ethoxy)ethoxy]-3(2H)-furanone
113190-55-9

2,5-dimethyl-4-[(1'-ethoxy)ethoxy]-3(2H)-furanone

Conditions
ConditionsYield
With hydrogenchloride; sodium hydrogencarbonate78.9%
furaneol
3658-77-3

furaneol

1,1,2,2-tetrachloroethylene
127-18-4

1,1,2,2-tetrachloroethylene

6,6,7,7-tetrachloro-5-hydroxy-1,3-dimethyl-2-oxabicyclo[3.2.0]heptan-4-one

6,6,7,7-tetrachloro-5-hydroxy-1,3-dimethyl-2-oxabicyclo[3.2.0]heptan-4-one

Conditions
ConditionsYield
In acetonitrile for 14h; Ambient temperature; Irradiation;57%
furaneol
3658-77-3

furaneol

Trichloroethylene
79-01-6

Trichloroethylene

6,6,7-trichloro-5-hydroxy-1,3-dimethyl-2-oxabicyclo[3.2.0]heptan-4-one

6,6,7-trichloro-5-hydroxy-1,3-dimethyl-2-oxabicyclo[3.2.0]heptan-4-one

Conditions
ConditionsYield
In acetonitrile for 12h; Ambient temperature; Irradiation;50%
furaneol
3658-77-3

furaneol

Sucrose
57-50-1

Sucrose

2,5-dimethyl-3(2H)-furanone 4-O-α-D-glucopyranoside

2,5-dimethyl-3(2H)-furanone 4-O-α-D-glucopyranoside

Conditions
ConditionsYield
With HEPES buffer; sucrose phosphorylase from Leuconostoc mesenteroides at 32℃; for 15h; pH=7.2; transglycosylation;45%
furaneol
3658-77-3

furaneol

2-Chloroacrylonitrile
920-37-6

2-Chloroacrylonitrile

(1S,5S,6R)-6-Chloro-5-hydroxy-1,3-dimethyl-4-oxo-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

(1S,5S,6R)-6-Chloro-5-hydroxy-1,3-dimethyl-4-oxo-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

(1R,5R,6R)-6-Chloro-4,4,5-trihydroxy-1,3-dimethyl-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

(1R,5R,6R)-6-Chloro-4,4,5-trihydroxy-1,3-dimethyl-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

Conditions
ConditionsYield
In acetonitrile Irradiation;A 44%
B 6%
With air In acetonitrile Irradiation;A 44%
B 6%
furaneol
3658-77-3

furaneol

methacrylonitrile
126-98-7

methacrylonitrile

(1S,5S,6S)-5-Hydroxy-1,3,6-trimethyl-4-oxo-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

(1S,5S,6S)-5-Hydroxy-1,3,6-trimethyl-4-oxo-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

(1R,5R,6S)-4,4,5-Trihydroxy-1,3,6-trimethyl-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

(1R,5R,6S)-4,4,5-Trihydroxy-1,3,6-trimethyl-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

Conditions
ConditionsYield
In acetonitrile for 2.5h; Irradiation;A 41%
B 15%
With air In acetonitrile for 2.5h; Irradiation;A 41%
B 15%
furaneol
3658-77-3

furaneol

-butyl vinyl ether
111-34-2

-butyl vinyl ether

2,5-dimethyl-4-[(1'-butoxy)ethoxy]-3(2H)-furanone

2,5-dimethyl-4-[(1'-butoxy)ethoxy]-3(2H)-furanone

Conditions
ConditionsYield
37.8%
furaneol
3658-77-3

furaneol

dimethyl acetylenedicarboxylate
762-42-5

dimethyl acetylenedicarboxylate

dimethyl 5-hydroxy-1,3-dimethyl-4-oxo-2-oxabicyclo[3.2.0]hept-6-ene-6,7-dicarboxylate

dimethyl 5-hydroxy-1,3-dimethyl-4-oxo-2-oxabicyclo[3.2.0]hept-6-ene-6,7-dicarboxylate

Conditions
ConditionsYield
In acetonitrile for 6h; Irradiation;25%
furaneol
3658-77-3

furaneol

acrylonitrile
107-13-1

acrylonitrile

(1R,5R,6S)-4,4,5-Trihydroxy-1,3-dimethyl-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

(1R,5R,6S)-4,4,5-Trihydroxy-1,3-dimethyl-2-oxa-bicyclo[3.2.0]heptane-6-carbonitrile

Conditions
ConditionsYield
With air In acetonitrile for 2h; Irradiation;22%
furaneol
3658-77-3

furaneol

Acetic acid (2S,3R,4S,5R,6R)-3-acetoxy-6-acetoxymethyl-2-(2,5-dimethyl-4-oxo-4,5-dihydro-furan-3-yloxy)-5-((2R,3R,4S,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-4-yl ester

Acetic acid (2S,3R,4S,5R,6R)-3-acetoxy-6-acetoxymethyl-2-(2,5-dimethyl-4-oxo-4,5-dihydro-furan-3-yloxy)-5-((2R,3R,4S,5R,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-4-yl ester

Conditions
ConditionsYield
With sodium hydroxide; tetrabutylammomium bromide In dichloromethane at 35℃; for 0.75h;22%
furaneol
3658-77-3

furaneol

2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide
572-09-8

2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide

glucofuraneol tetraacetate
121063-57-8

glucofuraneol tetraacetate

Conditions
ConditionsYield
With sodium hydroxide; tetrabutylammomium bromide In dichloromethane at 35℃; for 0.75h;19%
With calcium sulfate; silver(l) oxide In dichloromethane

3658-77-3Relevant articles and documents

Comparison of 2-acetylfuran formation between ribose and glucose in the Maillard reaction

Wang, Yu,Ho, Chi-Tang

body text, p. 11997 - 12001 (2010/03/25)

Sugar type is a major factor regulating the reaction rates and pathways in Maillard reaction. Ribose and glucose were used to compare their reactivities and pathways of 2-acetylfuran formation. A stable isotope labeling method was used to study their reactivity. A 1:1 mixture of [13C 6]glucose and unlabeled ribose (or other unlabeled sugar) was reacted with proline at 145 °C for 40 min. The reactivity of each sugar was revealed by the ratio of isotopomers. The reactivity of sugars in 2-acetylfuran formation decreased in the order ribose, fructose, glucose, rhamnose, and sucrose. This method simplified the reaction system and the calculation process and gave a direct comparison of reactivity as seen via mass spectrum. The difference between glucose and ribose in 2-acetylfuran formation was that glucose could form 2-acetylfuran directly from cyclization of its intact carbon skeleton, whereas ribose first underwent degradation into fragments before forming a six-carbon unit leading to 2-acetylfuran. In the presence of cysteine, ribose could not generate 2-acetylfuran at a detectable level. When ribose was reacted with glycine, formaldehyde generated from glycine combined with ribose to form 2-acetylfuran. In other amino acids, a symmetric structure of the ribose intermediate was formed, making fragmentation more complicated.

Potential of gas chromatography-orthogonal acceleration time-of-flight mass spectrometry (GC-oaTOFMS) in flavor research

Fay, Laurent B.,Newton, Anthony,Simian, Herve,Robert, Fabien,Douce, David,Hancock, Peter,Green, Martin,Blank, Imre

, p. 2708 - 2713 (2007/10/03)

Gas chromatography-orthogonal acceleration time-of-flight mass spectrometry (GC-oaTOFMS) is an emerging technique offering a straightforward access to a resolving power up to 7000. This paper deals with the use of GC-oaTOFMS to identify the flavor components of a complex seafood flavor extract and to quantify furanones formed in model Maillard reactions. A seafood extract was selected as a representative example for complex food flavors and was previously analyzed using GC-quadrupole MS, leaving several molecules unidentified. GC-oaTOFMS analysis was focused on these unknowns to evaluate its potential in flavor research, particularly for determining exact masses, N-Methyldithiodimethylamine, 6-methyl-5-hepten-2-one, and tetrahydro-2,4-dimethyl-4H-pyrrolo- [2,1-d]-1,3,5-dithiazine were successfully identified on the basis of the precise mass determination of their molecular ions and their major fragments. A second set of experiments was performed to test the capabilities of the GC-oaTOFMS for quantification. Calibration curves were found to be linear over a dynamic range of 103 for the quantification of furanones. The quantitative data obtained using GC-oaTOFMS confirmed earlier results that the formation of 4-hydroxy-2,5-dimethyl-3(2H)-furanone was favored in the xylose/glycine model reaction and 2(or 5) -ethyl-4-hydroxy-5(or2)-methyl-3(2H)-furanone in the xylose/alanine model reaction. It was concluded that GC-oaTOFMS may become a powerful analytical tool for the flavor chemist for both identification and quantification purposes, the latter in particular when combined with stable isotope dilution assay.

Formation of Hydroxyfuranone and Hydroxypyranone Derivatives with DNA-Breaking Activity in the Maillard Reaction of Glucose and Albumin under Physiological Conditions

Hiramoto, Kazuyuki,Ishihara, Akira,Sakui, Norihiro,Daishima, Shigeki,Kikugawa, Kiyomi

, p. 101 - 104 (2007/10/03)

Formation of DNA breaking hydroxyfuranone and hydroxypyranone derivatives in the Maillard reaction of glucose and bovine serum albumin (BSA) under physiological conditions was investigated. A mixture of glucose and BSA was incubated at 37 deg C in water or in 1 M phosphate buffer (pH 7.4). The ethyl acetate/2-propanol extract of the reaction mixtures showed significant DNA breaking activity against supercoiled DNA especially in the presence of Fe(III) ion. Gas chromatography/mass spectrometry analysis of the mixture revelaed the formation of DNA breaking hydroxyfuranones (HMF and DMHF) and hydroxypyranone (DDMP).

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