2,3-Dihydro-5,6-dimethylpyrazine
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2,3-Dihydro-5,6-dimethylpyrazine
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CAS No:
15986-92-2
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Formula:
C6H10N2
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Chemical Name:
2,3-Dihydro-5,6-dimethylpyrazine
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Synonyms:
Pyrazine,2,3-dihydro-5,6-dimethyl-;2,3-Dihydro-5,6-dimethylpyrazine;2,3-Dimethyl-5,6-dihydropyrazine;5,6-Dihydro-2,3-dimethylpyrazine;5,6-Dimethyl-2,3-dihydropyrazine
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CAS No:
2,3-Dihydro-5,6-dimethylpyrazine Use and Manufacturing
To a solution of ethylene diamine (13 g, 216 mmol) in anhydrous ether (600 mL) was added 2, 3-butanedione (18.6 g, 216 mmol, in 200 mL anhydrous ether) dropwise over 2 hours. The resulting mixture was stirred at ambient temperature. After 3 hours, the clear solution was concentrated in vacuo to afford a brown oil. Purification by vacuum distillation afforded 16.6 g (70percent yield) of 5, 6-dimethyl-2, 3- dihydropyrazine, a compound of formula (F), as clear, yellow oil ; b. p. 60°C/16 mm Hg, NMR (CD3) 3.3 (br s, 4), 2.1 (s, 6) ppm.To a solution of ethylene diamine (13 g, 216 mmol) in anhydrous ether (600 mL) was added 2, 3-butanedione (18.6 g, 216 mmol, in 200 mL anhydrous ether) dropwise over 2 hours. The resulting mixture was stirred at ambient temperature. After 3 hours, the clear solution was concentrated in vacuo to afford a brown oil. Purification by vacuum distillation afforded 16.6 g (70percent yield) of 5, 6-dimethyl-2, 3- dihydropyrazine, a compound of formula (F), as clear, yellow oil ; b. p. 60°C/16 mm Hg, NMR (CD3) 3.3 (br s, 4), 2.1 (s, 6) ppm.
Computed Properties
Molecular Weight:110.16
XLogP3:-0.8
Hydrogen Bond Acceptor Count:2
Exact Mass:110.084398327
Monoisotopic Mass:110.084398327
Topological Polar Surface Area:24.7
Heavy Atom Count:8
Complexity:127
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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2,3-Dihydro-5,6-dimethylpyrazine
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