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- Melamine, 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.The key step in a reported laboratory synthesis of sativene, a hydrocarbon isolated from the mold Helminthosporium sativum, involves the following base treatment of a keto tosylate. What kind of reaction is occurring? How would you complete the synthesis?What is the expected major product of this reaction? OH H₂N I H₂N H₂N 85% H3PO4, A H₂N ||| ? H₂N IV
- 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;COCIThe major product(s), C, of the following reaction, would be: Oll OI CI O Equal amounts of I and II O Equal amounts of I and III SO3 H₂SO4 C CI CI SO₂H á á á CI HO3S SO H || |||Diaw structural formulas for the major organic producto 9) MCH SOCI₂ b) 2) d) SE охон a OH HCl OH HBr excess H₂ CrOA HIOA DOD4, HD₂ HIO pruch, THEO 2) ft₂N for each reaction.
- O In this step alkyne anion is alting and it is attacking cecting acting as 4 electrophile a Pla وعك Ho as a nucleophile on the genen molecule, which is Br pom 산 2-Bromo propane (26105 576 honros он 2The major product of the following reaction is? H2SO4 H2O7) Provide the structure of the major organic product in the following reaction. HOT 7a) 7b) 7c) CH3 H3CO. H3CO. H3CO. CI. H. CN X· X- NC H 7d) H3CO CI CO₂CH3 A A A
- Which of the following reactions gives the product shown? 1. PhOH, Hg(O CCF2 Ph 2. NABH4 1. BD; HO 2. H-O2, OH H3C RCOH CH3 CH3 OH POCia RCO;H BF, Ph py Ph сно3. Draw the organic products formed in the following reactions. 요 i. S + b. ao [1] LDA 21 CHỊCH, CHO [3] H₂O HCO₂Et [1] NaOEI, EtOH [2] H₂O* CHO NaOEt EIOH -OH, H₂OProvide structures of the reactant/products: a) но. 1. D -MgBr 2. H3O* H 1. LIAIH4 2. H30* b) OH c) H. H* H* acetal OH OH H* H* acetal