5. Propose mechanisms for the following reactions. CH,OH, H" CH₂O OCH Ph…CH CH₂ 0 (a) Ph-C-H (c) 6 H Ph,P=CH₂ H+ H₂O CHO +NH₂ (b) CH-8-H (d) PHNHNH₂, H '++ (1) H₂O LOCH, OCH, CH₂-C-H N NHPH CH₂-CH₂ OH OH CH,CHÍNH CH CHỊCHÍNH, NCH₂CH₂
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- Predict the major product of the following reaction. (CH3)3C-OOH LOH TI[OCH(CH3)214 (-)-DET Dom -OH 11 OH Io ||| Ø OH IVWhat 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,6-46 Show how each compound might be synthesized by the SN2 displacement of an alkyl halide. SCH,CH, (a) -CH₂OH (c) (d) CHÍNH, 6-47 (a) Give twn synthecac fox (CI) qu (b) (e) H₂C=CH-CH₂CN n OLL BU (1) H-C=C-CH₂CH₂CH₂
- Identify the reagents nacessary to accomplish cach of the following transformations. Choose the correct reagents from the following list: CH;CH;COCI, AICI, Fuming H3SO4 CH:CH;CI, AICla SOCI, Pyridine dilute H,S0. Zn(H, HCI, heat (CH:)2CHC, AICI; HNO, HaSO4 Enter the correct letter for sach stap of the reaction in the boxes below. (Reagents con be usad more than once) Step A: Step B: Step C:Nonconjugated , -unsaturated ketones, such as 3-cyclohexenone, are in an acid-catalyzed equilibrium with their conjugated , -unsaturated isomers. Propose a mechanism for this isomerization.8-6 Propose a mechanism for the following reaction.105 CH3 CH3 H;C- CH3 HC, PMe, (2 equiv.) H,C "CH3 PHCH, "CH3 PMey H,C H,C Me P How to draw the mechanism?
- What starting materials are needed to synthesize each azo compounds O2N H2N- -N=N- CI но -N=N- -CH3 I0 Fill in the reagent or starting material needed or product in each reaction a) CgH;CH;CH;CH2Br CGH;CH;CH;CH¿NH2 b) C,H;CH;CH;CH2CONH, CH,CH;CH;CH;NH2 HCI P-CH;C,H4NH2 NANO2 P-CH;C,H&NH2 HCI/H;0 P-CH3C,H4NH2 CH;COCIIdentify the reagents needed to carry out each reaction. HBr Br KOC(CH,b HO TSCI pyridine COTS TSOH Br NaH NBS H,0 Cl, HO Br Он CI HO..Reaction of phenol with acetone in the presence of an acid catalyst gives a compound known as bisphenol A, which is used in the production of epoxy and polycarbonate resins Propose a mechanism for the formation of bisphenol A. OH H;PO, + H,O НО HO Phenol Acetone Bisphenol A
- 5) Complete the following reactions a) cH3- CHz COOH + b) cH3 - CHz CooHt LioH - c) CH3 COOH + Hg CO3Provide the structure of the product(s) with stereochemisty if appropriate. If multiple products indicate major product or if products are formed in equal amounts. If there is no reaction expected explain why. (a) OH HIO4 (the protecting group is remained) CHO H HOH2C OH (b) CHO -ОН NaCN # HO -H H -OH CH₂OH (c) CHO HO- -H HO -H NH₂OH 張一 H -OH H -OH CH₂OH i) Ba(OH)2 ii) MeOH, H₂SO4 NaOAc Ac₂0 NaOMe MeOHAnswer the following questions based on the given reaction scheme: A OH он So;Na conc. H,SO, NaOH ŠO,Na Br C он OH он Br acid Br SOgNa Br 200 °C H,SO, SO,Na Which step(s) require heating? DA OB OC OD OE In which step(s) does aromatic halogenation occur? DA OB OC DE In which step(s) does aromatic sulfonation occur? DA OB OC OD OE What is the name of the product?