化学 大学化学 有机化学 这个例题(4),有机物命名,学弟看不懂括号里的,大神指导

2025-03-15 17:40:47
推荐回答(2个)
回答1:

首先,最长的链为主链,那么主链有多少个C原子,10个,所以是葵,根据甲乙丙丁戊己庚辛壬葵。所以10就是葵。2-甲基就是说在主链上编号为2的C原子上有一个甲基,甲基就是CH3那个。
5-那个是说,在主链编号为5的C原子上,在该C原子中有一个子链,子链中,在编号为1的C原子上有一个甲基,在编号为2的碳原子上有一个甲基,所以是(1,2-二甲基)丙基是说子链最长为3个碳原子组成的原子链,这里表示为1‘,2’,3‘所以是(1,2-二甲基丙基)。至于烷,我记得有机物的命名要么是一般为烷或者烃,但是除了烷以外的其他有机物,都是有氧元素的,所以这里只能是命名为烷。所以连起来就是上面的名字了。

回答2:

复杂的烃基,不能直接叫某基的,可以用和系统命名一样的方法,选取最长的碳链叫某基,再在某基的前面标出碳链上取代基的位置,本例就是这样,只是命名中第一个括号内的数字要有撇。

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