Available forms:Clear colourless liquid
pd_proNo:539314-8ccaa838-1093-495f-9c7a-08373484aa71
pd_productuse:
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Preparation |
By condensation of leucine amide with glyoxal followed by methylation with CH2H2 |
|
Aroma threshold values |
Detection: 2 ppt to 10 ppb |
|
General Description |
2-Isobutyl-3-methoxypyrazine, a potent bell-pepper odourant, has been found to bind to cow olfactory mucosa homogenate. |
InChI:InChI=1/C9H14N2O/c1-7(2)6-8-9(12-3)11-5-4-10-8/h4-5,7H,6H2,1-3H3
An original synthetic route to asymmetri...
The present invention primarily relates ...
The present invention primarily relates ...
A previously described synthetic route f...
2-hydroxy-3-isobutyl-pyrazine
methyl iodide
2-isobutyl-3-methoxypyrazine
| Conditions | Yield |
|---|---|
|
With
sodium hydride;
In
tetrahydrofuran;
at 20 ℃;
for 48h;
|
89% |
D,L-leucine amide hydrochloride
2-isobutyl-3-methoxypyrazine
| Conditions | Yield |
|---|---|
|
Multi-step reaction with 2 steps
1: 90 percent / NaOH / methanol; H2O / -35 - 20 °C
2: 89 percent / NaH / tetrahydrofuran / 48 h / 20 °C
With
sodium hydroxide; sodium hydride;
In
tetrahydrofuran; methanol; water;
|
2-hydroxy-3-isobutyl-pyrazine
methyl iodide
sodium methylate
3-sec-butyl-2-chloropyrazine
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