What is the possible number of stereoisomers for 2, 3-dibromobutane?

Question

What is the possible number of stereoisomers for 2, 3-dibromobutane? (A) 4 (B) 3 (C) 2 (D) 1

Tardigrade Admin · Accepted Answer

The maximum number of stereoisomers are

2^{n}

where n = number of chiral centres. In this example, there are two chiral centres, but this compound also exist in 'meso form'. Hence, the number of stereoisomers of this compound

= 2^{2} - 1 = 3

.

Q. What is the possible number of stereoisomers for 2, 3-dibromobutane?

4

3

2

1

The maximum number of stereoisomers are 2n where n = number of chiral centres. In this example, there are two chiral centres, but this compound also exist in 'meso form'. Hence, the number of stereoisomers of this compound =22−1=3 .

The maximum number of stereoisomers are $2^{n}$ where n = number of chiral centres. In this example, there are two chiral centres, but this compound also exist in 'meso form'. Hence, the number of stereoisomers of this compound $= 2^{2} - 1 = 3$ .