Final Exam Review.2008 - Final Exam Review CEM 251...

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Unformatted text preview: Final Exam Review CEM 251 [email protected] 1. Answer the following questions for the molecule below: a. The number of Sp 3 carbons is: ____________ b. The number of Sp 2 carbons is: ____________ c. The number of Sp carbons is: ____________ d. The number of ı bonds is: _____________ e. The number of ʌ bonds is: _____________ 2. Draw the following molecules. Show stereochemistry (when necessary). a. 3-bromo-2,4-dimethylpentane b. (Z)-3-methyl-3-hexene c. 1,4-cyclohexadiene d. 2-butyne e. (E)-2,3-dichloro-2-pentene f. Cis-1-chloro-3-methylcyclohexane w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m 3. How many of the methyl groups in the below molecule will occupy an equatorial position in the more stable conformation? 4. Draw a Newman projection of any staggered conformation of 3-bromo-4-methyl- hexane, viewed down the C 3-C 4 bond. 5. Complete the following Newman projections of the two chair conformations of cis-1,3-dimethylcyclohexane viewed simultaneously down the C 3-C 4 and C 1-C 6 bonds. w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m 6. Draw a wedge-dotted line structure for the molecule below: 7. Indicate the isomeric relationship (constitutional, configurational or conformational) of the following molecules: a. b. c. 8. Label the acids and bases in the following reaction: w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e r t e r . c o m 9. Label the following configurations as (E) or (Z): 10. Draw the major product of the following reactions: HCl Br 2 Br 2 H 2 O 1. Hg(OAc) 2 , H 2 O 2. NaBH 4 1. BH 3 2. H 2 O 2 ,- OH 1. OsO 4 2. NaHSO 3 , H 2 O CH 2 I 2 Zn/Cu w w w . S m a r t P D F C o n v e r t e r . c o m w w w . S m a r t P D F C o n v e...
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This note was uploaded on 12/02/2008 for the course CEM Cem 251 taught by Professor Tepe during the Fall '08 term at Michigan State University.

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Final Exam Review.2008 - Final Exam Review CEM 251...

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