Английская Википедия:Acetylpyrazine

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Шаблон:Chembox

Acetylpyrazine is an organic compound with the chemical formula Шаблон:Chem. It is a yellow-brown powder at room temperature.[1] Chemically, acetylpyrazine is a pyrazine and a ketone.[2]

Natural occurrence

Acetylpyrazine is found in foods such as seeds, nuts and meats.

Uses

It is used in frozen dairy products such as ice cream.

It is considered generally recognized as safe by the U.S. Food and Drug Administration.[3]

"Essence formula for increasing cigarette fragrance and improving smoke quality".[4]

It is also known to be part of the formulation of e-cigarettes (vapes):[5]

Synthesis

Note that modern synthesis is for 2-cyanopyrazine from 2-methylpyrazine [109-08-0].[6][7]

Файл:Acetylpyrazine synthesis.svg
Patent ("Popcorn-like flavor and aroma"):[8] Earlier patent:[9]

Pyrazinamide [98-96-4] (1) 2-Cyanopyrazine [19847-12-2] (2)

More modern syntheses have also been reported in recent years:[10][11][12]

References

Шаблон:Reflist

  1. Ошибка цитирования Неверный тег <ref>; для сносок chemicalbook не указан текст
  2. Ошибка цитирования Неверный тег <ref>; для сносок sigmaaldrich не указан текст
  3. Шаблон:Cite web
  4. Mao Deshou, et al. CN115216363 (2022 to China Tobacco Yunnan Industrial Co Ltd).
  5. Шаблон:Cite book
  6. Шаблон:Cite journal
  7. Шаблон:Cite journal
  8. Donald L Roberts, Шаблон:US patent (1968 to RJ Reynolds Tobacco Co).
  9. Jr Victor K Smith & Kushner Samuel, Шаблон:US patent (1954 to Wyeth Holdings LLC).
  10. Шаблон:Cite journal
  11. Wang et al.: Progress in the Synthesis and Application of Acetylpyrazine, 2011.
  12. 任伟, et al. CN106588785 (2017 to Yoshida Spice Ltd By Share Ltd Shandong).