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- What reagents would you use to carry out the following reaction? (A) H₂ / Pt (B) (C) (D) H₂/Lindlar's ??? Li, EtNH₂ followed by NH4Cl H₂O₂ / NaOHWhat is the major product of the reaction sequence? H₂SO4 PBr3 A CH3OH O (A) O A O U (D) Br. OF OCH3 H3CO (B) но. OCH 3 (C) Br Br (E) (F) cott Hot H3CO. Br. OH HO. OCH 3 to7В. (2 Draw the structure of the product, substrate or condition in the following reactions (should clearly indicate the stereochemistry). (а) OH (b) OsO vaHSO3 (c) 1) (sia)2 BH 2) NaOH/H,O2 H20 (d) HBr (2 equiv) Br, Br Hint: This is the only product formed (e) Br Br2 H20 OH (f)
- 9. predict the product(s) for each reaction below: (a) ? H₂O+ ? (c) OMe H₂O+ OMe (b) H3O+ ? (d)6. Write the IUPAC name for the following compounds. Show the stereochemistry whenever required (a) HO NH2 CI (b) NH2 QH но (c) он Br H. (d) (e) OH Br BrWhich set of reagents would effect the conversion, OH (а) ВH3:THF, then H2O2/HO- (b) Hg(OAc)2, THF-H2O, then NaBH4/HO¯ (c) H3O+, H2O (d) More than one of these (e) None of these
- Which of the following compounds are generated by the reaction below? он (1) Hg(OAc)2, H20 но. (2) NaBHalethanol OH (A) (B) (C) (D) Compounds A, C and D O Compound B Compounds B and D O Compounds A and D (0)Identify the reagents a-e in the following scheme: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?
- 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.Give the reagents OH А) навни, меон B) 1) LAH excess 2) H30+ 2) H30tWhich of the following is a major product of the reaction shown below? он NaBH, (еxcess) OCH3 ELOH (A) (B) OH OCH3 но HO (C) (D) O Compound D Compound C OCompound A Compound B