Advanced Organic Chemistry Practice Problems 2021

For detailed solutions and explanations to these practice problems, please refer to the appendix.

The iodomethane electrophile is forced to approach exclusively from the less hindered si -face.

Design a rational, multi-step forward synthesis for starting from benzene and isobutylene (2-methylprop-1-ene) as your only carbon sources. Solution and Retrosynthetic Plan Target Molecule : advanced organic chemistry practice problems 2021

The enolate of 3-methylcyclohex-2-enone is generated with LDA at $-78^\circ\textC$ (kinetic conditions) vs. with t-BuOK at $25^\circ\textC$ (thermodynamic conditions). The enolate is then trapped with $\textCH_3\textI$.

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Controlling where and how a carbonyl compound reacts is a major theme in advanced synthesis.

For a horizontal allylic alcohol with the hydroxyl group on the right: (-)-DET delivers oxygen from the top face . (+)-DET delivers oxygen from the bottom face . Solution and Retrosynthetic Plan Target Molecule : The

The problems trending in 2021 moved away from simple functional group transformations. Instead, they emphasized and non-classical carbocations .