16. What is the ultimate product of this sequence of reactions? CH.CH OH CH NH,

Question

16. What is the ultimate product of this sequence of reactions? CH.CH OH CH NH, a (1 04) U room E) V A) 1 D) IV B) H B) H c) II ) III A) I 17. What would be the final organic product of the following reaction? i. LiAl(OC(CH3)3); H.-78°C C&H; COCI ii. H30 B) C.HSCH; ?) ?????? C) CH3COOCH, D) CH CHO E) C6H5CH,?? 18. What is the expected product, A, of the following reaction sequence? i. NBS, ROOR ii. Melether IL CO2 iv. H* A) HCO-CH-C6H5 B) C.HSCH COOH C) C6H5CHZOSOH D) CSHCHCICOOH E ) 0=C(CH3C6Hs) f ci i NaCN 19. What is the expected product, A, of the following reaction sequence? A + NH" ii. 70% H2SO4, reflux A) Benzyl formate B) Phenylacetic acid C) Benzenesulfonic acid D) 1-Chloro-l-phenyl acetic acid E) Dibenzylketone 20. What would be the final product, F, of the following sequence of reactions? 1. LAH, Eto soa i. Mg. Etzo F c0qH IH O 111. H30+ L BECOH COHLCOHOL D) IV E) V A) 1 B) II C) ? 21. What would be the final product, F, of the following sequence of reactions? 2-methylpropanoic acid i LAH, Et 0 Brzi. Mg. Et 0 ii CO2 iii. H;0* F HII ?) ?? C) ? D) IV E) V

Explanation / Answer

16. Option A, both reactions are SN2 reactions

17. Option D, reduction of acid chloride to aldehyde

18. Option B, phenyl acetic acid

19. Option B, phenyl acetic acid, hydrolysis of cyanide to COOH

20. Option D, isopentanoic acid

21. Option D, isopentanoic acid, compound IV.

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