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
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)
N-Bromosuccinimide Price
- Product number
- E0019
- Product name
- 2,3-dihydro-5,6-dimethyl-Pyrazine
- Purity
- 97.00%
- Packaging
- 1G
- Price
- $290
- Updated
- 2021/12/16
- Product number
- A129782
- Product name
- 5,6-Dimethyl-2,3-dihydropyrazine
- Purity
- 95%
- Packaging
- 1g
- Price
- $335
- Updated
- 2021/12/16
- Product number
- CM168915
- Product name
- 5,6-Dimethyl-2,3-dihydropyrazine
- Purity
- 95%
- Packaging
- 1g
- Price
- $468
- Updated
- 2021/12/16
- Product number
- CD11245192
- Product name
- 5,6-Dimethyl-2,3-dihydropyrazine
- Purity
- 95+%
- Packaging
- 1g
- Price
- $495
- Updated
- 2021/12/16
- Product number
- 15986922
- Product name
- 5,6-Dimethyl-2,3-dihydropyrazine
- Packaging
- 1g
- Price
- $545
- Updated
- 2021/12/16
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
2,3-dihydro-5,6-dimethylpyrazine Suppliers
- Tel
- --
- Fax
- --
- contact@achemica.com
- Country
- Switzerland
- ProdList
- 6155
- Advantage
- 50
View Lastest Price from 2,3-dihydro-5,6-dimethylpyrazine manufacturers
- 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
- 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
- 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