Butan-2-yl (sec-butyl) group is chiral. The carbon atom at position 2 is a stereocenter . It has four different groups attached: −H , −CH 3 , −CH 2 −CH 3 , and −R (the R group is not equal to those three groups).

Secondary (Sec) With butyl straight-chain alkyl groups there is the possibility of a connection on the second carbon from the end of the chain. These alkyl groups are given the prefix " Sec.

The sec-butyl group is a branched alkyl substituent with a methyl group attached to the second carbon of a four-carbon chain. It is a structural isomer of the primary butyl group, where the substituent is attached to the terminal carbon.

2011年11月10日 · There is no “secondary butane” but there is “sec-butyl” which is when we take a hydrogen off of C2 of butane and stick it on something. Isobutane is the molecule formally called “2-methylpropane” .

2020年1月2日 · The butyl functional group can have four different conformations: n-butyl, s-butyl, t-butyl, and isobutyl. This article helps name the different forms.

2024年2月28日 · Isobutyl, a four-carbon alkyl group, is characterized by a branching at the first carbon atom, creating a more compact structure. Sec-butyl, also a four-carbon group, differs in having its branching at the second carbon atom, resulting in a different molecular shape.

A Sec-Butyl Group is defined as a steric hindrance group that can be attached to a molecule, providing increased steric bulk and influencing the reactivity and selectivity of chemical reactions. AI generated definition based on: Comprehensive Organic Synthesis (Second Edition), 2014

2024年2月23日 · Isobutyl and sec-butyl groups are both four-carbon branches derived from butane, but differ in their structure. Isobutyl has a primary carbon attached to a secondary carbon, whereas sec-butyl has a primary carbon connected directly to the main chain.

Sec-butyl (sec-butyl group): A portion of molecular structure equivalent to butane minus one hydrogen atom from carbon 2.

2021年9月24日 · A sec-butyl compound can be represented by the general formula CH 3 CH (R) CH 2 CH 3. For example, if R is an OH functional group, then we will have 2-butanol or sec-butyl alcohol, CH 3 CH (OH) CH 2 CH 3. Nomenclature and training. It is known that secbutyl derives from n-butane, the linear isomer of butane, C 4 H 10 (left of the upper image ...