What is the major product obtained in the bromination of #(CH_3)_(2)CHCH_2CH_3#?

(CH₃)₃CBrCH₃CH₃ is the main product obtained from the bromination of (CH₃)₃CHCH₃CH₃.

Four products are obtained from the free-radical bromination of this alkane:

1-(bromo-3-methylbutane) 2-(bromo-3-methylbutane) 2-(bromo-2-methylbutane) (A, B, C, D)

Nevertheless, the regions that bromine targets are extremely selective.

The various forms of H atoms have relative attack rates of 3°:2°:1° = 1640:82:1.

We multiply the numbers of each type of atom by the relative reactivity to get the relative amounts of each product.

(1) A: (1°): 3 × 1 = 3; (2) B: (2°): 2 × 82 = 164; (3) C: (3°): 1 × 1640 = 1640; and (1°) D: (6 × 1 = 6

Each isomer's percentages are

Therefore, C, 2-bromo-2-methylbutane, is the main product.

The major product obtained in the bromination of (CH₃)₂CHCH₂CH₃ is 2-bromo-2-methylbutane.

The major product obtained in the bromination of ((CH_3)_2CHCH_2CH_3) is 2-bromo-2-methylbutane.