2020年1月2日 · The butyl functional group consists of four carbon atoms. These four atoms can be arranged in four different bond configurations when attached to a molecule. Each arrangement has its own name to distinguish the different molecules they form. These names are: n-butyl, s-butyl, t-butyl, and isobutyl.

仲丁基（sec-butyl group），又称第二丁基或二级丁基。 丁烷 分子中任何一个甲叉基(二级 碳原子 ， CH2 =)上去掉一个氢原子后，剩下的一价基团。

In organic chemistry, butyl is a four-carbon alkyl radical or substituent group with general chemical formula −C 4 H 9, derived from either of the two isomers (n-butane and isobutane) of butane. The isomer n -butane can connect in two ways, giving rise to two "-butyl" groups:

正丁基n-Bu，-CH2CH2CH2CH3. 异丁基iso-Bu，或i-Bu，-CH2CH(CH3)2. 仲丁基sec-Bu，或s-Bu，-CH(CH3)CH2CH3. 叔丁基t-Bu，-C(CH3)3

在有机化学中，丁基（英語： Butyl group ）是一种含四个碳的烷基 自由基或官能团，具有通用化学式-C 4 H 9 ，从两个丁烷 异构体中的任意一个衍生而来。 异构体正丁烷（即直链烷烃）中的两个端基碳原子或中间的两个碳原子可连接其他基团，得到两种“丁基 ...

2018年6月11日 · You could attach it from one of the end carbons, in which case we call it "n-butyl." Or you could attach it from one of the inner carbons, in which case we call it "sec-butyl" because the attachment point is a secondary carbon (instead of …

s – butyl. The second form has the same carbon atom chain arrangement as the first, but the rest of the molecule attaches to the second carbon in the chain. The structure of the sec-butyl group is – CH 3 – CH 2 – CH(CH 3) –. The s – denotes secondary because it attaches to the chain’s secondary carbon.

CAS号查询致力于为化学行业用户免费提供s-Butyl的CAS号、中文名称、英文名称相互转换服务,同时也包括s-Butyl的性质、化学式、分子结构、密度、熔点、沸点等信息。

In the IUPAC system the common names for t-butyl and s-butyl are still accepted. Usually the "t" from tert- and the "s" of sec- is not included in the alphabetic ordering of substituents. If you have both these substituents on a hydrocarbon, which will get alphabetic preference in …

2011年11月10日 · There are four different types of “butyls”, and they all have their own name. In addition they each have a common name (“trivial name”) which they commonly go by. It’s easy to get confused. So today’s post is a guide to sorting them out. Butane has four carbons.