4. Select the true statement concerning the addition reaction between chlorine a

Question

4. Select the true statement concerning the addition reaction between chlorine and 4- ethylcyclopentene (in dichloromethane) a. the addition is syn, and the mechanism involves a carbocation intermediate b. the addition is anti , and the mechanism involves a carbocation intermediate c the product is 1,1,2,2-3-ethyltetrachlorocyclopentane, and the mechanism involves a radical intermediate d. the addition is anti, and the mechanism involves a chlorinium ion intermediate e. the addition is syn, and the mechanism involves a chlorinium ion intermediate 5.A, C10H16 , undergoes hydrogenation with three equivalents of hydrogen to yield compound B, C10H22 ? When A is treated by ozone, followed by zinc in an acid work-up, two compounds are formed in equal amounts. What is the structure of compound A? 6. Choose the best name for the structure a. 2-chloro-2-methyl-2-yneheptane b. 2-chloro-2-methyl-5-heptyne c. 2-chloro-2,6-dimethyl-2-hexyne d. 5-chloro-1,5-dimethyl-1-hexyne e. 6-chloro-6-methyl-2-heptyne

Explanation / Answer

4) d

5) c

6) e

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