Organic Chemistry Homework!!!?

Chloe C

New member
X and Y have a molecular formula of C4H9Br. X exhibits stereoisomerism but Y does not. Both X and Y can be formed from butane by the following reaction.

CH3CH2CH2CH3 --> X + Y

(a) Identify X and Y and draw their structural formula.
(b) estimate the ratio in which X and Y might be formed.
(c) State the type of stereoisomerism exhibited by X and draw diagrams to illustrate how X gives rise to its stereoisomerism.
 
X is 2-bromobutane, and Y is 1-bromobutane.

X is formed from a secondary carbon, whereas Y needs a primary carbon to form. Since the formation of secondary carbons is preferable, X will be formed in a higher ratio, but I don't know the exact ratio.

C2H5-CH(Br)-CH3

Draw two tetrahedral molecules, and switch two of the substituents in the second one. This will show the enantiomerism they display.
 
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