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Unformatted text preview: a. 1-hexyne b. 2-hexyne c. 3-hexyne d. 3,3-dimethyl-1-butyne 17. Determine the reagent: 18. Which reaction sequence below would work best? 19. Which sequence of reactions works best in synthesizing cis-3-nonene? a. (1) 1-butyne, NaNH 2 (2) 1-bromopentane (3) Na, NH 3 b. (1) 1-butyne, NaNH 2 (2) 1-bromopentane (3) H 2 , Lindlar c. (1) 1-pentyne, NaNH 2 (2) 1-bromobutane (3) H 2 O, H 2 SO 4 , HgSO 4 d. (1) 1-pentyne, NaNH 2 (2) 1-bromobutane (3) 2 equiv HCl (4) NaNH 2 20. Predict the product. 21. Predict the product of the following reaction: 22. Select the best sequence for the following synthesis: 23. Predict the product of the following reaction: 24. It is believed that the trans alkenyl radical , shown below, is an intermediate in the sodium metal reduction of an alkyne. Based on this information, the unpaired electron would be located in which of the following orbitals: 25. Predict the product of the following reaction:...
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This note was uploaded on 10/23/2010 for the course CHEM 261 taught by Professor Salame during the Spring '08 term at CUNY City.
- Spring '08