Draw three-dimensional representations of(a) (b) Sample Solution (a) The chirality center...

Draw three-dimensional representations of

(a)

(b)

Sample Solution (a) The chirality center is the one that bears the bromine. In order of decreasing precedence, the substituents attached to the chirality center are

When the lowest ranked substituent (the methyl group) is away from us, the order of decreasing precedence of the remaining groups must appear in a clockwise sense in the R enantiomer.

which leads to the structure