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Organic Chemistry Reactions

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I really need help with these five organic chemistry problems. I am lost on how to begin and how to do them.

1. Propose a mechanism for the entire reaction of 1-pentyne with HBr. Show why Markovnikov's rule should be observed in this addition.

2. Propose a mechanism for the entire reaction of 1-pentyne with HBr in the presence of peroxide.

3. When 2-pentyne reacts with mercuric sulfate in dilute sulfuric acid, the product is a mixture of two ketones. Give the structures of these products.

4. Draw the structure of the major product(s) formed when 2-pentyne is treated with a (i) cold, dilute solution of neutral potassium permanganate; (ii) warm, basic permanganate

5. Draw the structure of the major product(s) formed when 1-hexyne is subjected to ozonolysis, followed by hydrolysis.

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Solution Summary

This solutin explains how to solve a variety of organic chemistry problems.

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