Question

ch3ch (ch3) ch ( br) ch3
iupac name ​

Answer 1

Explanation:

the IUPAC name is 2-Bromo-3-methylbutane

first preference to halogen group that is bromine

Answer 2

The IUPAC name of the given compound is 2-Bromo-3-methyl butane.

• According to IUPAC rules, the longest carbon chain must be identified to get the root word.
• In the given compound, the longest chain is a four-carbon chain.

                $-C_{4} -C(CH_{3} )_{3} -C(Br)_{2} -C_{1} -$

• So the root word is butane.
• There are two substitutions, bromine, and a methyl group.
• Among those two, bromine must be given preference according to IUPAC rules. So the carbon with bromine substitution must be numbered the least, that is C-2.
• Hence the carbon with methyl substitution is numbered as C-3.
• Hence the name of the compound is 2-Bromo-3-methyl butane.