cyclize

cyclized rubber resin

环化橡胶树脂

Glucose cyclizes to form asix- membered pyranose ring whilst five –carbon surgars and six-carbon ketose sugars (ketohexoses) such as fructnose rings.

环状结构 四碳糖和更大的糖能环化，醛基或酮基与糖的另一碳原上的羟基反应。