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Unformatted text preview: c) (1R,2S)-1-(1,1-dimethylethyl)-2-methylcyclohexane d) (1R,2R)-1-(1,1-dimethylethyl)-2,4,4-trimethylcyclohexane 3. a) (2E)-4,4-dimethyl-3-(2-methylpropyl)-2-octene b) (2R,4E,6R)-4,5,6-trimethyl-4-octen-2-ol c) (3S)-1,3-dimethylcyclohexene [note: assume that carbon 1 is alkene AND you do not need to mention E or Z as cyclohexene can only be Z – an E alkene in a 6-membered ring is impossible. d) (1R)-4-methyl-3-cyclohexen-1-ol 4. 5. a) 3-penten-2-one O O O O OH b) (3Z)-3-methyl-1,3-pentadiene c) d) e) all three would be relatively high in energy (less stable) since they require the delocalized electrons in pi system be localized (recall the significant delocalization energy discussed in class) more stable cation same molecule! O O...
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- Spring '11
- Organic chemistry