Practice problems-Acetals

Practice problems-Acetals - different. Show all the...

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Practice problems acetals 1. Write product(s) and step by step mechanism for the following reaction. Make sure that you indicate clearly with arrows which way the electrons flow. Keep track of all your charges, show all intermediates. Indicate the position of 18 O in the product(s). a. 18 O H + + MeOH excess b. O H + + Me 18 OH OH 2. Show how you would synthesize the following compound from the starting material given below. You can use any reagent within the reason and carbon compound containing no more than two carbon atoms. Show all the reagents used assume workup. a. O b. COOH OH c. O COOH O O
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3. Show all possible ways (just the last step) to obtain the following compound. You can use the starting material with the same or less number of carbons as in the product. The methods can be the same but the starting materials must be
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Unformatted text preview: different. Show all the reagents used assume workup. OH OH 4. Draw structures of all the products (if any) for the following reactions (include the byproducts as well). Indicate the position of the isotopes (deuterium, 18 O) in the products. a. O O + H 2 18 O H + b. O COOH + N R CONH 2 D D H 2 O enzymatic reaction c. COCH 3 HO 1. PhCH 2 MgCl/Et 2 O 2. H + /H 2 O d. HC C + Br Na + hint: ketones react faster than acids 5. Draw structures of all the products (if any) for the following reactions (include the byproducts as well). Indicate the position of the isotopes (deuterium, 18 O) in the products. a. b. OH D + N R CONH 2 H 2 O enzymatic reaction O Br + (CH 3 ) 2 CuLi Pentane (solvent) D O O 18 H + O c. d. HC C + Na + Br + H 2 O...
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This note was uploaded on 10/11/2010 for the course CHM 2211 taught by Professor Castalleano during the Spring '06 term at University of Florida.

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Practice problems-Acetals - different. Show all the...

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