Gilmanns reagent R2CuLi undergo conjugate addition with enone.
AlklylaAlk of ketone at alpha position by alkyl halide.
56. In each of the following retrosynthetic disconnections (m), show a reaction or reaction sequence that...
dion Carry out retrosynthetic analysis to show hod the target iven to thenit can be Prepared. si the Diels- Alder reuton, write the equston for the reaction, clearly showing the tncture of the red ts eqwired yo give the sterothemistry indi cated in the Product
6. Show how to connect a 74HC93 4-bit asynchronous counter for each of the following moduli: (a) 9 (b) 11 (c) 13 (d) 14 (e) 15 10. The waveforms in Figure 9-69 are applied to the count enable, clear, and clock inputs as indi- cated. Show the counter output waveforms in proper relation to these inputs. The clear input is asynchronous. CTEN CTENCTR DIV 16 CLR
A) at least one retrosynthetic analysis (disconnection) B) a reaction scheme showing each of the synthetic steps with starting materials, products, reagents and conditions C) a paragraph or so describing the logic of a synthetic strategy and why it would be the most likely to give the desired product. octa-2,4,6-triene
Predict the product of the following reaction sequence. a ondan CH3COOH INDI V O O O O O
3. For the reaction sequence shown below, give the product of each reaction and show the mechanism of Its formation. 4. Propose a synthesis (make) for the compounds shown below. All carbon containing compounds, reagents, or reactants must be synthesized from the starting materials shown in the box. You may use any Inorganic compounds you wish. You may also use any solvents you wish, however, if a solvent participates in the reaction you must synthesize it.
וווו והו vide a retrosynthetic analysis to show how you would synthesize the following molecule. As starting erials you may use any alcohols of 5 carbons or less. You may use any necessary solvents and inorganic eagents. There is no need to show reaction mechanisms, just reactants, conditions and products (10 points). HyC
1. Find the product from the following reaction sequence: 1. (C6H5)3P-CH2 2. BHz,THF 3. H2O2, HO
Retrosynthetic Analysis 12. Give a reasonable synthesis for each of the following compounds from the indicated starting materials. You may use any other organic or inorganic reagents you wish unless otherwise indicated. The desired product for each reaction you propose must be the one of the predominant products. Give the reactants, conditions (where appropriate) and products of each synthetic step. NO MECHANISMS! [8 points] NH ONH2 Make starting with
Z a a Search 6. Show a complete arrow-pushing mechanism for the following reaction. (4) ОН CHO CO2Etz COEU 7. Show a complete synthetic sequence for the preparation of the bicyclic compound shown below from 1,3-cyclopentanedione. You are not required to show a retrosynthetic analysis, but it may be useful in helping you answer the question. (3)
Show the product and mechanism:
What is the final product of the following reaction sequence? For each step, show a mechanism and the product H^+/H_2O NaOH, heat