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1H NMR Spectrum

The 1H NMR spectrum of an unknown compound shows the following signals: triplet, quintet and triplet (relative integrals 1:2:3, respectively). Which compound is consistent with this data?

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Cis and Trans

Which of the following statements best describes the structural relationship between cis-1,2-dibromocyclopropane and trans-1,2-dibromocyclopropane?

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The Usual Suspects

Place the following in order of LEAST acidic to MOST acidic.

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Most Acidic Proton

Which labeled proton in the following molecule is most acidic?

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Best Leaving Group in Substitution

Which is the best leaving group in a substitution reaction of an alkyl halide from the following choices?

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Stereoisomers of Quinine

Quinine is well-known antimalarial drug from the bark of the cinchona tree. In principle, how many stereoisomers of quinine are possible?

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Diels-Alder Reaction

Which diene would be more reactive in a Diels-Alder reaction and why?

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Heating of Beta-Keto Carboxylic Acids

The addition of heat and acid to 2-oxocyclopentanecarboxylic acid produces:

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Methods of Extraction

Methods of extraction are important for use in industry and research. One of the typical steps in an extraction is the use of either acid or base to treat an unknown mixture. This step is applied in order to:

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How Many Pi Bonds

Dynemicin A (pictured), a potent anti-tumor antibiotic produced by Micromonosporachernisa, is a potential lead compound in anti-cancer research. How many pi (π) bonds does Dynemicin A possess?

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