Illustrate a method for achieving the transformation shown in the margin, using combinations of reactions presented in Sections 21-8 and 21-9. 

Section 21-8

Section 21-9

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Hofmann Elimination of 1-Butanamine CH;CH,CH,CH,NH, Excess CH,I, K,CO, H,0 CH;CH,CH,CHN(CH;)3 I- Ag.0, H,O 1-Butanamine -AgI 1-Butyltrimethylammonium iodide HO: H H CH-CH-CH — СH, + НОН + N(CH3)3 CH CH, CNCH,), 1-Butyltrimethylammonium hydroxide 1-Butene