Carbasugars,carbocyclic analogues of true sugars,are compounds in which the ring-oxygen of furanoid or pyranoid sugars is replaced by methylene group.
碳环糖是一类呋喃或吡喃糖环中的氧原子被亚甲基取代后形成的糖类似物。
Methylene group
英语例句库
中文百科
亚甲基
亚甲基（H2C:）是一个有机二价官能团，可分为：
- −CH2−基，如二氯甲烷；
- =CH2基（亚烷基），如亚甲基环丙烯和亚甲基环己烷；也被称作甲撑基，如“甲撑双酚”等。
- :CH2电中性分子，称为“亚甲基卡宾”，是高度活泼的反应中间体。
亚甲基常是碳链的组成单元，会增加化合物的亲脂性。
英语百科
Methylene group 亚甲基
In organic chemistry, a methylene group is any part of a molecule that consists of two hydrogen atoms bound to a carbon atom, which is connected to the remainder of the molecule by a double bond. The group may be written 2, where the '=' denotes the double bond. This structural element is also called methylidene.
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