6. Write the mechanism for the following reaction step using curved arrows, and draw the result of those motions. You will need to draw a different conformation of the reactant. OH heat
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Write the mechanism for the following reaction step using curved
arrows, and draw the result of those motions. You will need to draw a
different conformation of the reactant.
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- Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. H Drawing Arrows H H H Ö :CHOCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond- making steps. Drawing Arrows C H HH :CHO ww M4. Predict the product and show the detailed mechanism for the reaction below. Use cyclohexane chair conformations as we did in class. Give a short explanation for the observed regioselectivity (why the alkene forms where it does). Use additional sheets, make sure you draw large enough for your work to be clearly understood) scratch E2 Br (LDA NLi LDA = THE onormversus angle of
- Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. Drawing Arrows H H H H :CI:0 H. :Ö:H :Ci: H CH3 H-Ci: H3C-C--CH3 H3C CH3 ČH3 Add curved arrows for the first step. Draw both the organic and inorganic intermediate species. Include nonbonding clectrons and charges, where applicable. Include hydrogen atoms. CH, сн, : cl : H,C CH, HCCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. Drawing Arrows H2O2, NaOH BH2 Focus
- a) Draw the mechanism, using good curved arrow notation, for the reaction of 2-methyl-2- butene with bromine in water, omitting any stereochemistry: b) (R)-3-butyn-2-ol is treated with 2 mol of HBr, yielding optically active Compound A (C4H8OBr2). Draw the structure of the reaction with the correct stereochemistry. c) Name Compound A above, including stereochemistry. d) Compound A is treated with HBr to yield Compound B (C4H7Br3). The resulting solution is optically inactive. Draw the product(s) obtained and explain why there is a loss in optical activity.Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond-breaking and bond-making steps. H H y H H ✪ I CH3OH heat CH3OH heat HH H : Br: O CH3OH heat Drawing Arrows5. 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 + 3
- Add any remaining curved arrow(s) to complete step 1 of the mechanism, and modify the given drawing as needed to show the intermediate that is formed in this step. Use the single bond tool to interconvert between double and single bonds. H Edit Drawing CH₂Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahedral intermediate." Draw the tetrahedral intermediate as it is first formed in the following reaction. H3C HCI / H2O `NH2 reflux • You do not have to consider stereochemistry. • Include all valence lone pairs in your answer. • Do not include counter-ions, e.g., Na", I, in your answer. • In cases where there is more than one answer, just draw one. opy aste Previous NextAdd any remaining curved arrow(s) to complete step 1 of the mechanism, and modify the given drawing as needed to show the intermediate that is formed in this step. Use the single bond tool to interconvert between double and single bonds. ÇH3 ÇH3 Br H2C* H2C Edit Drawing