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Synthesis Questions

Can you please explain these problems we don't have a book for my class and I haven't had any luck searching around online or from my physical organic book. Please let me know if you can do these?!

1.) Which form of molecule A is the most stable (1, 2, or 3)? Provide a graphical (i.e. figures not graphs) provide an explanation for your answer.

2.) Enamines are generally reactive toward electrophiles. For example, compound E reacts with HBr at room temperature. Surprisingly, enamine F is unreactive with HBr even at 150 °C. Provide a rationale for this difference in reactivity.

3.) The cis isomer of 1,2-azodifluoride (below) is more stable than the trans isomer by 3 kcal/mol. Explain this difference.

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Let me know if you need further clarification, I can update the posting.

1.) Which form of molecule A is the most stable (1, 2, or 3)? Provide a graphical (i.e. figures not graphs) provide an explanation for your answer.

Check this website, I'll be glad to update the posting with more explanations if you are not sure about what the interactions ...

Solution Summary

The molecules which are the most stable are given. The expert examines reactive towards electrophiles. The differences in reactivity are provided.

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