On June 30, 1987, Baltes, Werner; Bochmann, Gloria published an article.Quality Control of 5,6,7,8-Tetrahydroquinoxaline The title of the article was Model reactions on roast aroma formation. IV. Mass spectrometric identification of pyrazines from the reaction of serine and threonine with sucrose under the conditions of coffee roasting. And the article contained the following:
From the volatiles of model roastings, where serine, threonine, and sucrose (in different ratios) were treated under the conditions of coffee roasting, 123 mono- and bicyclic pyrazines were separated and identified by capillary gas chromatog. and mass spectrometry. The spectra obtained were compared with the spectra of roast coffee volatiles. Numerous compounds unknown up to now were identified, among them 12 products which, according to their behavior, were postulated to be furfurylpyrazines. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Quality Control of 5,6,7,8-Tetrahydroquinoxaline
The Article related to pyrazine aroma coffee roasting model, serine threonine sucrose pyrazine, Food and Feed Chemistry: Physical, Organic, and Inorganic Chemistry and Model Systems and other aspects.Quality Control of 5,6,7,8-Tetrahydroquinoxaline
Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider