2,3-dihydro-5,6-dimethylpyrazine

Product Name: 2,3-dihydro-5,6-dimethylpyrazine
CAS No.: 15986-92-2
Chemical Name: 2,3-dihydro-5,6-dimethylpyrazine
Synonyms: DHP-1;DHDMP;Einecs 240-122-3;5,6-Dimethyl-2,3-dihydropyrazine;5,6-Dihydro-2,3-dimethylpyrazine;2,3-Dimethyl-5,6-dihydropyrazine;2,3-dihydro-5,6-dimethylpyrazine;Pyrazine, 2,3-dihydro-5,6-dimethyl-
CBNumber: CB3924723
Molecular Formula: C6H10N2
Formula Weight: 110.16
MOL File: 15986-92-2.mol

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2,3-dihydro-5,6-dimethylpyrazine Property

Boiling point:: 60-63 °C(Press: 18 Torr)
Density: 1.02±0.1 g/cm3(Predicted)
storage temp.: Sealed in dry,Room Temperature
pka: 6.73±0.20(Predicted)

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

AccelPharmtech

Product number: E0019
Product name: 2,3-dihydro-5,6-dimethyl-Pyrazine
Purity: 97.00%
Packaging: 1G
Price: $290
Updated: 2021/12/16

Ambeed

Product number: A129782
Product name: 5,6-Dimethyl-2,3-dihydropyrazine
Purity: 95%
Packaging: 1g
Price: $335
Updated: 2021/12/16

Chemenu

Product number: CM168915
Product name: 5,6-Dimethyl-2,3-dihydropyrazine
Purity: 95%
Packaging: 1g
Price: $468
Updated: 2021/12/16

Crysdot

Product number: CD11245192
Product name: 5,6-Dimethyl-2,3-dihydropyrazine
Purity: 95+%
Packaging: 1g
Price: $495
Updated: 2021/12/16

Alichem

Product number: 15986922
Product name: 5,6-Dimethyl-2,3-dihydropyrazine
Packaging: 1g
Price: $545
Updated: 2021/12/16

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2,3-dihydro-5,6-dimethylpyrazine Chemical Properties,Usage,Production

Uses

5,?6-?Dimethyl-?2,?3-?dihydropyrazine can be used in studies of perfume composition comprising fragrance modulator compounds and silicic acid esters for increasing and prolonging the intensity of fragrance.

Synthesis

107-15-3

431-03-8

15986-92-2

Over a period of 2 hours, 2,3-butanedione (18.6 g, 216 mmol, dissolved in 200 mL of anhydrous ether) was added slowly and dropwise to a solution of ethylenediamine (13 g, 216 mmol) in anhydrous ether (600 mL). The reaction mixture was stirred continuously for 3 hours at room temperature. Subsequently, the clarified reaction solution was concentrated under reduced pressure to give a brown oily crude product. Purification of the crude product by reduced pressure distillation resulted in 16.6 g (70% yield) of the target compound 5,6-dimethyl-2,3-dihydropyrazine (Formula F) as a clarified yellow oil. The boiling point was 60 °C/16 mm Hg. Nuclear magnetic resonance hydrogen spectroscopy (NMR, CD3) data were as follows: δ 3.3 (broad single peak, 4H), 2.1 (single peak, 6H) ppm.

References

[1] Transition Metal Chemistry, 2013, vol. 38, # 1, p. 31 - 36
[2] Chemical and Pharmaceutical Bulletin, 2010, vol. 58, # 6, p. 825 - 828
[3] Patent: WO2005/79769, 2005, A2. Location in patent: Page/Page column 91
[4] Synthesis (Germany), 2013, vol. 45, # 11, p. 1546 - 1552
[5] Patent: EP1254899, 2002, A2. Location in patent: Page 46

2,3-dihydro-5,6-dimethylpyrazine Preparation Products And Raw materials

Raw materials

Preparation Products

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2,3-dihydro-5,6-dimethylpyrazine Suppliers

China 26 India 1 Switzerland 1 Global 28

Shanghai JingRon Chemical Technology Co., Ltd.

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View Lastest Price from 2,3-dihydro-5,6-dimethylpyrazine manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: 5,6-Dimethyl-2,3-dihydropyrazine 15986-92-2
Price: US $1.10/g
Min. Order: 1g
Purity: 99.0% min
Supply Ability: 100 tons min
Release date: 2025-09-24

Shaanxi Dideu New Materials Co. Ltd

Product: 2,3-dihydro-5,6-dimethylpyrazine 15986-92-2
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 95.0%
Supply Ability: 10000KGS
Release date: 2025-03-13

Shaanxi Dideu Medichem Co. Ltd

Product: 2,3-dihydro-5,6-dimethylpyrazine 15986-92-2
Price: US $0.10/KG
Min. Order: 1KG
Purity: 98.0%
Supply Ability: 10
Release date: 2024-08-04

15986-92-2, 2,3-dihydro-5,6-dimethylpyrazineRelated Search:

5A,13A-DIHYDROBENZO[A][1,2,5]THIADIAZOLO[3,4-H]PHENAZINE 2,3-BIS(BROMOMETHYL)-4A,5,6,7,8,8A-HEXAHYDRO-QUINOXALINE-1,4-DIOXIDE 2,3-dihydro-5,6-dimethylpyrazine 5,6-DIPHENYL-2,3-DIHYDROPYRAZINE 2,3-BIS-(2'-PYRIDYL)-5,6-DIHYDROPYRAZINE (4AR,8AS)-2,3-DI-2-FURYL-4A,5,6,7,8,8A-HEXAHYDROQUINOXALINE 1,4-DIOXIDE

2,3-dihydro-5,6-dimethylpyrazine

2,3-Dimethyl-5,6-dihydropyrazine

5,6-Dihydro-2,3-dimethylpyrazine

5,6-Dimethyl-2,3-dihydropyrazine

DHDMP

DHP-1

Einecs 240-122-3

Pyrazine, 2,3-dihydro-5,6-dimethyl-

15986-92-2