● Which sequence will produce the following transformation? 1. 2. 3. 4. 5. PhMgBr Et₂O PhMgBr Et₂O MeMgBr Et₂O H H3O+ H3O+ H3O+ MeMgBr Et₂O PCC CH₂Cl₂ PCC CH₂Cl₂ OH Both (1) and (2) are possible Both (2) and (3) are possible H3O+ MeMgBr Et₂O PhMgBr Et₂O ©2018 Cengage Learning. All Rights Reserved. H3O+ H3O+

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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.