Question

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1) Which alkene is likely to be formed in the largest quantity if the alcohol is dehydrated? H2SO4 OH a) E-4,4-dimethylpent-2-ene b) 2,3-dimethylpent-2-ene c) 2,3-dimethylpent-1-ene d) E-3,4-dimethylpent-2-ene 2) What is the product of this reaction? ??? Br a) 1-pentene d) tert-butyl pent-2-yl ether b) E-2-pentene c) tert-butyl pentyl ether 3) What is the major product of this reaction? 1) TSCI H 2) NaOEt піон ??? CH3 H H Lello ||||CH3 CH O a) b) c) 4) Which reagent gives the best yield? CH3 ???? OH b) HCI a) NaCl c) SOCI,/pyridine d) Cl/H2O 5) Which mechanism is followed to yield the product of this reaction? CH3 H ot hell OH CH3 Η' a) SN b) SN2 c) Electrophilic Addition d) E

Answer 1

2) H₂SO4 2 3 5 OH и JE (b) 2,3-dimethylpent-2-ene H+ (Any) OH, IN 5 Br H H ot Ez Elimin nation (a) 1-pentene 곤 با || H OH ① Ts a 6 Tocolou rolusal 11 "CH₂ OTS CH₂ Na O Et CHz H 3. Ans.-) optim.

4. mich SOCI2 -OH pyridine el I soch, HSK . Ans. (C) sock/ lo Os=0 Pyridine My moh "CH₂ Electrophilic addition, he H. Mechanism followed to yield the product is. () Electrophilic addition. (Any)