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- Propose a reasonable synthetic route for the following reaction: II CH,CH,-C-CI Zn(Hg) (1)? (2)? AICI, HCI (3)? СООН HNO3 (4)? H,SO,Predict the dehydrohalogenation product(s) that result when the following alkyl halides are heated in alcoholic KOH. When more than one product can be formed, rank them in terms of their predicted stability (1 is most stable isomer, 2 the next most stable isomer, etc...) a) b) HD HD H CH3 ''CI H CH3 Br 'Br KOH EtOH KOH EtOH KOH EtOHConsider the reaction of the cyclopentanone derivative shown below. n i) (C3H7)2NL*, THF. -78°C ii) CH₂!
- The main product of the reduction of 3-ethyl-2-pentanone, in the presence of LIAIH4 as catalyst, is: bv) CH–CH2CH CHI CHO CH-CH₂ cx) CH-CH₂-CH-0-CH3 1 CH₂ CH3 VALAISUU, US OH KHI CHICH, CHÍCH CHO CH-CH3 Ik) CH,CH, CH, CH, COO CHI CHWhich reaction would yield cyclopentanol? سیدگی (A) (B) -d (C) (D) 1. LiAlH4 2. H+ 1. NaBH4 2. H+ 1. BHg:THF 2. H2O2, NaOH OSO4What is the structure of (1S.2R)-1-ethyl-2-methyl-1,2-epoxycyclohexane? II OH IV
- Fill in the missing products below. 1) Hg(OAc)2, EtOH 2) NaBH4 Excess HI A B Heat RCO3H 1) H-CEC: Na D 1) NaSEt 2) H3O+ 2) H₂O+ → E HBr → FWhen the alkene A was treated first with Hg(OAc)2 in MeOH and second with NaBH4 the product was the ether B. Using curved arrows please give the mechanism for the first step of (Hg(OAc)2 in MeOH) this reaction, including any regioselectivity or stereoselectivity. H3C 1. Hg(OAc)2, MeOH H3C O-CH3 =CH2 ✓ -CH3 H3C 2. NaBH H3C A BWhat is the expected product of this reaction scquence? NaC CCH CHCH Br Na THE hgNH (А) CH,CH,CH,с — сн CH,CH, (D) (B) (с сн, сH,сH, Cн СH, CH CH,CH CH,
- A chemist allows some pure (2S,3R)-3-bromo-2,3-diphenylpentane to react with a solution of sodium ethoxide(NaOCH2 CH3) in ethanol. The products are two alkenes: A (cis-trans mixture) and B, a single pure isomer. Under the same conditions, the reaction of (2S,3S)-3-bromo-2,3-diphenylpentane gives two alkenes, A (cis-trans mixture) and C. Upon catalytic hydrogenation, all three of these alkenes (A, B, and C) give 2,3-diphenylpentane. Determine the structures of A, B, and C; give equations for their formation; and explain the stereospecificity of these reactions.Draw a structural formula for the major organic product of the reaction shown below. & CH₂ (oran CH3CH₂O -CuLi 2 ether You do not have to consider stereochemistry. Sn [F ? ChemDoodle H3O +4. What products are expected from the following reaction? CH3C-180-CHCH₂CH3 (R-isomer) CH3 A) OH H₂O CH3C180₂ and CH3CHCH₂CH3 (R-isomer) он 18 OH CH3CO₂ and CH3CHCH₂CH3 (R-isomer) B) D) OH CH3C180₂ and CH3CHCH₂CH3 (S-isomer) 18OH CH3CO₂ and CH3CHCH₂CH3 (S-isomer)