Quiz Bank 8

Quiz Bank 8 - GTA/F2006 Quiz Bank 8 1 Provide a structure...

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Unformatted text preview: GTA/F2006 Quiz Bank 8 1. Provide a structure for an ester that is in agreement with the spectroscopy data presented below. The mass is 194 g/mol and the structure has a bromine atom. 2. The major product in the dehydration of 2-butanol is: a. cis-2-butene b. 1-butene c. trans-2-butene d. isobutylene 3. In gas chromatography, in general the most volatile component is eluted: a. First b. Last c. In the middle d. It is impossible to tell 4. In the reduction of 4-tert-butylcyclohexanone with NaBH 4 , the electrophile is: a. The hydride b. The methanol c. The sodium methoxide d. The Ketone 5. In the reduction of 4-tert-butylcyclohexanone with NaBH 4 , the nucleophile is: a. The Hydride b. The methanol c. The sodium methoxide d. The ketone 6. When 4-tert-butylcyclohexanol is isolated in lab 7, it was supposed to be a white solid. However, some students obtained the product contaminated with some water. How would you get rid of the water? a. Dissolve the product in dichloromethane, add sodium sulfate, decant, and evaporate the organic solvent b. Dissolve the product in dichloromethane, add methanol, and evaporate the organic solvents c. Dissolve the product in diethyl ether, add acid, extract, add base to the aqueous layer, and filter the crystals 13 C NMR ( ) 170.3, 62.3, 49.1, 29.7, 15.2 and 13.0 1 H NMR ( ) 4.21 (q, 2H), 4.19 (t, 1H), 2.19 (quintet, 2H), 1.29 (t, 3H) and 1.08 (t, 3H) GTA/F2006 d. a and b....
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Quiz Bank 8 - GTA/F2006 Quiz Bank 8 1 Provide a structure...

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