1. Complete the following roadmaps. Note that some steps have been completely filled in. ΠΟ, HB:...
2. Draw the structure of X and complete the following reactions. H2 Lindlar's cat. CH212 CulZn 1. NaNH2 2. CH CH CH Br 1. BH, THE 2. HOOH HgSO4 H2O/H Terminal alkyne X
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25. Predict the major organic product(s) for each reaction below. Note: some questions have multiple steps associated with them. (2 points each) a. O 1.Ph Culi CI 2. H20 1. CH3Li 2. H30* b. O NaBH4 OCHs CH3OH C. 1. PBr3 OH 2. NaCN 1. DIBAL-H 78 C H2SO4 OEt 2. H20 Pd(PPh3) Br FeBr3 B(OR)2
Complete the following reactions. Place some kind of mark (like an asterisk) next to any reaction that creates a new chiral center. If no reaction occurs write "NR. 4. I) HI 2) LiOEt /DMSO Low Temp. I mol NaCN DMF NaOH 1,о Br Но 1) TSCI/Pyridine 2) NaN, MLK Cl NaOMe Acetone A Mе Br MENH, HCO,H/-A 1) KOMe / MeOH 2) HCI/ H.O Br 3) LIN, / AcOH Page 4 Foll 201g
3. Fill in the reagents or products for the following reactions. Note some boxes will require two or three reagents in separate steps; list them as 1, 2, and 3. (2 points) 1. MeONa/MeOH 2. HCI +/ H2N Br 4. Using another sheet of paper, provide a reasonable reaction mechanism for the following transformation, starting with enamine generation (Carbonyls 2) and subsequent alkylation and hydrolysis (Carbonyls 3). Please write neatly and show all arrows, resonance structures, tetrahedral intermediates, and charges....
1 synthesis for each of the following compounds. Some problems have more than one plausible Starting from benzene and using any other necessary reagents of your choice, design a answer (a) NO2 (b) Н-N, (c) Н.N. (d) (e) Br COOH (f COOH
1) What are the major products, A to o produced in the following reactions? Where it states stereochemistry, dashes and wedges must be used to show stereochemistry. Note: for some reaction enantiomers are formed. 15 Marks. One mark for each correct product. Must show stereochemistry and all products for full mark. 1. CH, MgBr 2. H,O* PCC Br NaOH EIOH CH.CH A B с CH.ON CH3OH NaBr H2SO4 Isolate (R) enantiomer and react with given reagents F E SOCI Stereochem...
PPUCTy 627 All the following good yield. In som encountered. Neve lowing reactions have been described in the chemical literature and proceed in ald In some cases the reactants are more complicated than those we have so far ned. Nevertheless, on the basis of what you have already learned, you should be able to predict the principal product in each case. (a) NaC=CH + c Br B. (b) Br Br Y 1. excess NaNH, NH, 2. H0 BE on fa...
9.27 All the fol All the following reactions have been described in the chemical literature and proceed in good yield. In some cases the reactants are more complicated than those we have so far encountered. Nevertheless, on the basis of what you have already learned, you should be able to predict the principal product in each case. (a) NaC=CH + 01 Br Br. 1. excess NaNH, NH3 (b) Br Y 2. H2O Br ci on fa KOC(CH3)3, DMSO heat von...
1(10) Complete the following reactions. Label the major product if there is more than one product CH₃ CH₂ CH₂ CH3 have CH₃ CH₂ CH₂ + O₂ flames CH₃ CH₂ CH₂OH Na Bu, H₂SO4 (0) CH₃ CH₂OH Pele Cone. HBR CH₃CH₂ CH₂OH NaOH + OH- CH₂Cl alekoh CH₃ CH₂ CH CH3 a heat Br CH₂C-B + H₂O csta AgNO3 CH₃ CH CH3 + Ag+ OH H₃PO4 heat
Jame: . Complete this mechanism for the following substitution reaction. Note: this reaction is balanced. H-Br Н,0 OH -CH3 H20 Step 1: proton transfer Step 2: lose water Step 3: attack the carbocation Br -CH3 . Each reaction above is reversible. In question 1, what effect would adding more HBr have on the equilibrium? Would there be more or less alkyl bromide product present at equilibrium? . Two dehydrations can occur on glycerol, the principle carrier molecule in vaping devices....