Yog li, dab tsi yog pyrazine? Luv luv rau alkyl-methoxypyrazines, pyrazines yog cov tshuaj sib xyaw uas feem ntau pom nyob rau hauv qib siab dua hauv classic Bordeaux varietals- Sauvignon Blanc, Cabernet Franc, Cabernet Sauvignon, Merlot, Carménère thiab Malbec.
Pyrazine ua li cas?
Ntau txoj hauv kev muaj rau cov organic synthesis ntawm pyrazine thiab nws cov derivatives. Ib txhia ntawm cov no yog cov qub synthesis tshua tseem siv. Nyob rau hauv Staedel-Rugheimer pyrazine synthesis (1876) 2-chloroacetophenone yog reacted nrog ammonia rau cov amino ketone, ces condensed thiab ces oxidized mus rau ib tug pyrazine
pyrazine siv rau dab tsi?
Methoxylated pyrazines yog siv hauv kev lag luam naj hoom los txhim kho cov ntxhiab ntawm cov tshuaj pleev ib ce thiab cov khoom siv hauv chav dej(tshiab, ntsuab, ntoo, ambery, oriental, musky, minty, thiab herbaceous). Pyrazine flavors feem ntau tau ntxiv rau cov khoom noj hauv microwave vim tias cov ntxhiab tsw tsis tsim nyob rau hauv microwaves ntawm qhov kub hauv qab 200 ° C.
YPuas yog pyrazine yog Diazine?
Pyrazine yog diazine uas yog benzene uas cov pa roj carbon atoms ntawm txoj haujlwm 1 thiab 4 tau hloov los ntawm nitrogen atoms. Nws muaj lub luag haujlwm ua Daphnia magna metabolite. Heterocyclic aromatic organic tebchaw nrog cov tshuaj formula C4H4N2. …
Pyrazine nplhaib yog dab tsi?
Pyrazine, ib chav kawm ntawm cov organic tebchaw ntawm heterocyclic series characterized by a nplhaib qauv uas muaj plaub atoms ntawm carbon thiab ob ntawm nitrogen. Lub nplhaib pyrazine yog ib feem ntawm ntau cov tshuaj polycyclic ntawm cov khoom siv roj ntsha lossis kev lag luam tseem ceeb.
