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 四碳大的能环化，醛基或酮基与的另一碳原上的羟基反应。