Question

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10. What would be the product of the following reaction sequence? 1. CHJ (excess) 2. Ag O, H2O 3. heat но C. a. (HC)N e. mixture of (c) and (d) d. N CH3 CH3 CHg 11. Which of the following would fail to produce an ester? HO0 RCO H excess EtOH b. 1. DIBAL isopropanol CN C. d. CI 2. HO pyridine e. all of these will yield an ester 12. What would be the product of the following reaction sequence? egoenio 1. Na Cr O, H2SO 2. SOCl pyridine но. 3. NaN A (ro 3. Н.О NH2 СОон NH2 NH2 d. b. а. C. Ng ut 13. Which conversion would not be an efficient synthesis of N-ethyl benzylamine? Сно EtNH2 1. Ac O 2. LIAIH 3. HO NH2 a. b. NaBH,CN 1. EINH2 2. LIAIH 3. H2O 1. BnBr C. d. 2. H2NNH2 3. Cн, сно NaBH,CN e. all of these will produce N-ethylbenzylamine O=

Answer 1

Answer:

Ag20H20 но .Н AдОН 10) Agl + нс-4 CHз ін2 CH 3 Нэс+ "CHз Нас Hас H CHз Its a Hoffman Elimination Reaction a) In presence of excess H3CI, the full methylation amine takes place and quateranry amine salt forms. b) Ag20 with H20 forms a weak base AgOH. This base gives HO- ions ie Base. This cause Elimi nation reaction via E2 mechanism and gives an alkene. Hence the product

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