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Organic Chemistry / Addition Reagent Facts / Problem #16210

A single epoxide was isolated in 79–84% yield in the following reaction. Was this epoxide A or B? Explain your reasoning.  

Predict the missing structures of reagents or products during the following transformations. If more than one reagents/steps are needed they should be clearly indicated inside the box. When appropriate indicate clearly the stereochemistry of the products.

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Provide correct product(s) for the following reactions, demonstrating correct stereochemistry in your products. If the product has an enantiomer or diastereomer, then just write +E or +D as necessary. Finally, indicate if the reaction undergoes  ANTI or SYN addition (if a mechanism undergoes both then circle both words). 

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Propose a sequence of reactions which will convert the indicated starting material into the desired target compound. In addition to the starting material, you may use any reaction conditions listed in the “menu” provided below. For each reaction in your synthesis, write a letter from the menu in the small box above the reaction arrow to indicate the reaction conditions used, and write the structure that is formed in the large box on the products side of the reaction arrow. If the product of a reaction is a racemic mixture, it is only necessary to draw one enantiomer. Be sure to show stereochemistry clearly and unambiguously where necessary! All of the boxes should end up filled with a letter or a structure if your answer is correct – additional steps should not be necessary!

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Provide correct product(s) for the following reactions, demonstrating correct stereochemistry in your products. If the product has an enantiomer or diastereomer, then just write +E or +D as necessary. Finally, indicate if the reaction undergoes  ANTI or SYN addition (if a mechanism undergoes both then circle both words). 

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Provide correct product(s) for the following reactions, demonstrating correct stereochemistry in your products. If the product has an enantiomer or diastereomer, then just write +E or +D as necessary. Finally, indicate if the reaction undergoes  ANTI or SYN addition (if a mechanism undergoes both then circle both words). 

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For each reaction, mark all of the statements below that correctly describe the reaction. 

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2-butene will react with:

 

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