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- 5. Each of the following may participate in an elimination reaction, under the proper conditions. (a) Circle the alpha (a) carbon. (b) Circle the beta (B) carbon(s). (c) Draw the alkene product(s) that may form, with the new double bond between the a and B positions. (d) If more than one alkene product is possible, circle the most stable (Zaitsev) product. X tx + 3thanks.a) Consider the reaction of HBr with ethylene and propylene. At roomtemperature the reaction of propylene with HBr is much faster than thereaction with ethylene.Using reaction energy diagrams and your knowledge of carbocationstability explain why this is so. b) Xylene (dimethylbenzene) is a commonly used chemical in the printingindustry and as a cleaning solvent for oily waste. It is also used whenpreparing histological samples to remove waxes from biological samples.Draw the three possible structures for this compound and give the UPACnames for each. Define which structures are ortho, meta, and para.
- Question 5 1). Draw all resonance structures for the carbocation intermediate formed by para attack; circle the resonance structure that is particularly unstable. N- N Cl₂ AICI 3 H 2). Draw all resonance structures for the carbocation intermediate formed by ortho attack; circle the extra resonance structure that is particularly stable. H a Aer ANSAS C HNO3 H₂SO46.The three compounds below can form a carbocation under aqueous acidic conditions. Draw the structure of Carbocation. || =Q6) (True/False) Unlike SN1 reaction, a nature of leaving group is not very important for E1 reaction. (A) Statement is True (B) Statement is False (C) Statement can be true sometimes (D) I have no idea but I will ask my mother
- 4) Draw the complete electron-pushing arrow mechanism for the following reductions. Explain, using resonance contributors, the regiochemistry that results in each case. ỌMe Na, MeOH ? NH3 CHO Na, MeOH ? NH35. Draw the mechanism that produces the major product for the following reactions. Do not draw minor products. Include resonance structures of the intermediates. Make sure you add all arrows! For both the reagents reacting together and resonance structures. Lone pairs must be shown on atoms that have charges. This includes the nitro group when drawn out. Arrows either start at electrons and end on at atom or start in the middle of a bond and end on the atom. 1) 2) CI NO₂ H₂N-CH3 (one major product) CI-CIPredict the major product for each of the following reactions. 17.42a ? Modify the given copy of the starting material to draw the product of this reaction. Use the eraser tool to remove any unwanted atoms, and use single bond tool to interconvert between double and single bonds. Edit Drawing NBS Heat or light
- Process of Drawing Hydrohalogenation with a Carbocation Rearrangement ?4. The given mechanism tracks the transformation of a primary hydroxyl FG into an aldehyde carbonyl using the Swern oxidation ([0]) conditions. Examine the details of the mechanism, paying close attention to the lack of lone pairs, and then respond to the following questions. Note that "reaction arrow" refers to the arrows that separate the reaction steps. (a) Draw a box around the pE2 step (reaction arrow) of the mechanism. (b) Draw a star on any addition (Ad) step (reaction arrow) of the mechanism. (c) Draw a circle around any elimination (E) step (reaction arrow) of the mechanism. (d) When the Swern conditions are characterized as NOT over-oxidizing primary hydroxyl FGs into carboxyl FGs, to what step in the mechanism does this refer? (e) What is the leaving group for the pE2 step in this mechanism? What criteria is used to judge what makes this FG a good leaving group? H3C S=0 H3C H3C → OS- H3C CO2 CO CIO CH2 H3C H3C CH3 H3C H3C H3C CH3 H. H3C O CH3 H3C H NET3 H3C H3C H3C R R NET3Circle the reaction in the pair that will undergo reaction more readily.