Question

What is the trivial (common name) name of this group? (Organic Chemistry)

Answer 1

The common name is sec-butyl.

Explanation:

Here are the IUPAC and common names for the four butyl groups.

Formula: `"CH"_3"CH"_2"CH"_2"CH"_2"-"`
IUPAC: butyl
Common: n-butyl

Formula: `"CH"_3"CH"_2"CH"("CH"_3)"-"`
IUPAC: 1-methylpropyl
Common: sec-butyl

Formula: `("CH"_3)_2"CH"_2"CH"_2"-"`
IUPAC: 2-methylpropyl
Common: isobutyl

Formula: `("CH"_3)_3"C-"`
IUPAC:2,2-dimethylpropyl
Common: tert-butyl