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- Which of the following compounds is the most nucleophilic? . CHSSH • CH;OH H2O CH,CO2H BF3What 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;COCIMelamine, used as a fire retardant and a component of the writing surface of white boards, can be prepared from s-trichlorotriazine through a series of SNAr reactions with ammonia. The first substitution takes place rapidly at room temperature. The second substitution takes place near 100 °C, and the third substitution requires even higher temperature and pressure. Provide an explanation fatr this reactivity.
- What are the products of the following reaction? HO +CH;-CH2 + а) Br Br b) Br +CH,CH;OH CH2 HBr heat ČH3 OH +CH;CH¿Br c) d) +CH,CH,OH Br +CH,CH,Br3) Propose a step-by-step mechanism for the following nucleophilic substitution reaction: (You need to show all bonds, atoms and arrows involved in the mechanism reactions) LOCH CH;OH Br ÓCH,Answer 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?
- us not ev om ← Draw the major product of this reaction. Ignore inorganic byproducts and the carboxylic acid side product. O CH3OH (1 equiv) pyridine Drawing a Problem 211 of 34 Atoms, Bonds and Rings Charg OH о || S CIIdentify the major organic product of the following reactions: а) - OH H30* Нeat b) || CH3—с-о-он c) 1, NABH4 2. H30*Which of the following reactions does not proceed? O Dehydration of 2-propanol with H;SO, catalyst Hydrogenation of benzene with H2/Pt o Oxidation of 2-propanol by H,Cro O Hydrobromination of 2-butene with HBr O Hydration of cyclohexene with H2O/H2SO4