Jennifer would like to carry out an SN1 reaction, which reagent would work best: 3-methylhexane, 3- bromohexane, 2-bromoheptane, 1-bromo-1-methylcyclohexane?
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Jennifer would like to carry out an SN1 reaction, which reagent would work best: 3-methylhexane, 3-
bromohexane, 2-bromoheptane, 1-bromo-1-methylcyclohexane?
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- Draw the structure of the major organic product of the reaction below. CH₂ + CHCI 3 KOH Use the wedge/hash bond tools to indicate stereochemistry where it exists. Show stereochemistry in a meso compound. If the reaction produces a racemic mixture, just draw one stereoisomer. O. #[ ] در ? ChemDoodleⓇCH=CHNO₂ (2-nitrovinyl)benzene Electrophilic substitution on (2-nitrovinyl)benzene occurs at the meta position. Draw resonance structures to show how the ring is electron-poor at the ortho and para positions. You do not have to consider stereochemistry. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate resonance structures using the symbol from the drop-down menu. 0 78 00-F k[Review Topics] [References] Br H3C CH3 H3C H3C 1. Aqueous ethanol + HO +] H. CH3 H. CH3 BH3 O-BH3 f=Sn1 Nucleophilic substitution g = Sn2 Nucleophilic substitution a = Proton transfer d = El Elimination b Lewis acid/base e = E2 Elimination c = Electrophilic addition The rections above involve synthesis or reactions of alcohols and ethers. Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters a - gf answers. 2.
- Use the templates to draw the indicated structures but leave off the hydrogens since they make the drawing hard to read. Br Br Br cis-1-bromo-2-methyl B trans-1-chloro-4-bromo 7CH3 NaH Br Compound F CeHgO St. CH3 Propose a structure for compound F and the product C6H3O. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. • Draw organic products only. Do not include counter-ions, e.g., Na, I, in your answer. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corn • Separate structures using the sign from the drop-down menu. opy asteCH=CHCN 3-phenylpropenenitrile Electrophilic substitution on 3-phenylpropenenitrile occurs at the meta position. Draw resonance structures to show how the ring is electron-poor at the ortho and para positions. ● • You do not have to consider stereochemistry. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate resonance structures using the → symbol from the drop-down menu.
- [Review Topics] [References] HO pyridine 1. SOCIl, + sO2 + H. Aqueous acetone H3C H20 H3C HBr 2. Br H OH optically active racemic f = SN1 Nucleophilic substitution g = SN2 Nucleophilic substitution a = Proton transfer d = E1 Elimination b = Lewis acid/base e = E2 Elimination c = Electrophilic addition The rections above involve synthesis or reactions of alcohols and ethers. Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters a - g for your answers. 1. 2.b Assuming that halogens add to alkynes in the same manner that they add to alkenes, write a mechanism for the reaction step below. Use curved arrows to show electron reorganization. Arrow-pushing Instructions H3C C↔X ™ Br: CH3 BrWhat reagent/reagents is/are necessary to transform the starting molecule into the desired product? ?. CH,CH•CHỔH CH3CH
- Draw the product that would form when 4-methyl-2-pentene reacts with bromine. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. / Sn [F ? ChemDoodle1. Propose a mechanism for the following reaction. Use the arrow formalism to indicate the flow of electrons. CH3 CH3 CH3 CH2=ĊCH,CHCH,OH H2SO4, H;C_ H3CDraw out a reaction for 2-chloro-2-methylbutane and KOH, naming each product (if more than one)