Simple acetylated nitrogen and sulfur-containing heterocycles occur in many cooked foodstuffs and are of current interest to the food industry as flavour and aroma ingredients. For example, 2-acetylthiazole 1 was detected in the 1970s in cooked and canned beef, 1 and 2 cooked pork liver, 3 cooked potato 4 and rice bran. 5 More recently, the same compound has been found to be formed from the garlic constituent alliin both by thermal degradation in acidic ...
