PERFORMANCE CHECK 1. Which of the following alkyl halides would you expect to undergo Friedel-Crafts reaction with rearrangement and which without? Explain. (а) CHCH2CI (b) CH3CH2CH(Cl)CH3 (c) CH3CH2CH2CI (d) (CH3)3CCH2CI (e) Chlorocyclohexane 2. What is the major monosubstitution product from the Friedel-Crafts reaction of benzene with 1-chloro-2-methylpropane in the presence of AICI3? 3. Identify the carboxylic acid chloride that might be used in a Friedel-Crafts acylation reaction to prepare each of the following acylbenzenes:

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Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.