2,3-Dihydro-5,6-dimethylpyrazine

Base Information

• Chemical Name: 2,3-Dihydro-5,6-dimethylpyrazine
• CAS No.: 15986-92-2
• Molecular Formula: C6H10 N2
• Molecular Weight: 110.159
• Hs Code.: 2933990090
• European Community (EC) Number: 240-122-3
• DSSTox Substance ID: DTXSID20166753
• Nikkaji Number: J27.870J
• Wikidata: Q83036001
• Mol file: 15986-92-2.mol

Synonyms:2,3-dihydro-5,6-dimethylpyrazine

Chemical Property of 2,3-Dihydro-5,6-dimethylpyrazine

Chemical Property:

• Vapor Pressure: 1.71mmHg at 25°C
• Boiling Point: 173.2°Cat760mmHg
• PKA: 6.73±0.20(Predicted)
• Flash Point: 49.8°C
• PSA: 24.72000
• Density: 1.02g/cm³
• LogP: -0.20700
• Storage Temp.: Sealed in dry,Room Temperature
• XLogP3: -0.8
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 110.084398327
• Heavy Atom Count: 8
• Complexity: 127

Purity/Quality:

98%Min ^*data from raw suppliers

5,6-Dimethyl-2,3-dihydropyrazine 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=NCCN=C1C
• 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.

Technology Process of 2,3-Dihydro-5,6-dimethylpyrazine

There total 6 articles about 2,3-Dihydro-5,6-dimethylpyrazine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 95.0%

ethylenediamine (107-15-3,85404-18-8) + dimethylglyoxal (431-03-8) → 5,6-dimethyl-2,3-dihydropyrazine (15986-92-2)

Guidance literature:

With C₂₀H₂₄Cl₂N₂O₂Zr; In ethanol; at 20 ℃; for 0.166667h; Green chemistry;

DOI:10.1007/s11243-012-9657-5

Reference yield: 71.0%

ethylenediamine (107-15-3,85404-18-8) + dimethylglyoxal (431-03-8) → 5,6-dimethyl-2,3-dihydropyrazine (15986-92-2) + (2R*,3R*,5R*)-1,2-ethyleneimino-1,7,10-triaza-2,3,6-trimethyl-3-hydroxy-spiro[4,5]decan-6-ene

Guidance literature:

With potassium hydroxide; In diethyl ether;

DOI:10.1248/cpb.44.1977

Reference yield: 70.0%

dimethylglyoxal (431-03-8) → 5,6-dimethyl-2,3-dihydropyrazine (15986-92-2)

Guidance literature:

In ethylenediamine;

upstream raw materials:

ethylenediamine

dimethylglyoxal

but-3-yn-2-ol

Downstream raw materials:

formaldehyd

1-isocyano-2-(N-acetylamino)-ethane

(CO)3NiC₆H₁₀N₂Ni(CO)3

(±)tert-butyl trans-2,3-dimethylpiperazine-1-carboxylate

Refernces

• 1、 Yamaguchi, Tadatoshi,Kashige, Nobuhiro,Mishiro, Noriko,Miake, Fumio,Watanabe, Kenji. "Dihydropyrazine derivatives as a new type of DNA strand breaking agent". . p. 1261 - 1265. Retrieved 1996.
• 2、 -. "MONOACYLGLYCEROL LIPASE INHIBITORS". Paragraph 0340-0341. . Retrieved 2021/09/09.
• 3、 Delpivo, Camilla,Micheletti, Gabriele,Boga, Carla. "A green synthesis of quinoxalines and 2,3-dihydropyrazines". . p. 1546 - 1552. Retrieved 2013/06/27.