摘要
Pyrogallol(pyrogallic acid)is easy to be autooxidized,forming a free radical under alkaline condition,but the mechanism has not been clear.The mechanism of the autooxidation of pyrogallol was studied with ESR,UV and NMR techniques and it was found that pyrogallol was autooxidized to a quinone radical under alkaline condition.And at the same time oxygen recieved an electron from the reaction to form superoxide anions,the hydroxyl free radical was then produced by HaberWeiss reaction.The oxygen free radicals generated from this process promoted the autooxidation of pyrogallol.
ＩｎｔｒｏｄｕｃｔｉｏｎＰｙｒｏｇａｌｏｌ（ｐｙｒｏｇａｌｉｃａｃｉｄ）ｉｓｅａｓｉｌｙａｕｔｏ－ｏｘｉｄｉｚｅｄ，ｆｏｒｍｉｎｇｆｒｅｅｒａｄｉｃａｌｓｕｎｄｅｒａｌｋａｌｉｎｅｃｏｎｄｉｔｉｏｎｓ［１］．Ｗｈｅｎｔｈｅｂｏｄｙｉｓｓｉｃｋ，ｔｈｅ...
