OWLv2 I Onine t are two dias s of 3-b ethoxide in xene as the major diastereomer gives the E alkene, and the other gives the Zalkene. Which diastereomer gives the E alkene? Me Me Me Br Me Et Et Et Following are two di One diastereomer gives the E alkene, and the other gives the Z alkene. Which diastereomer gives of 3-bromo-234-trimethythexane. On treatment with sodium ethoxide in ethanol, each gives 2.3,4-trimethyl-J-hexene as the major product the E alkene? H Br HBr Me Me Et Me iPr major product. One diastereomer gives the E alkene, and the other gives the Z alkene. Which diastereomer gives the E alkene? Br Br Me H iPr iPr iPr Previous Ne
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Formulas of all chloro that u when treated with KOH to give the following alkene as the major pro...
CH3CH2SCH2CH3 can be synthesized by an Sn2 reaction. Draw the structures of the alkyl chloride and...
CH3CH2SCH2CH3 can be synthesized by an Sn2 reaction. Draw the structures of the alkyl chloride and nucleophile that will give this compound in highest yield. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Include all valence lone pairs in your answer. • Separate multiple reactants using the + sign from the drop-down menu. • When a metal counterion is needed, use Na+, but draw it in its own sketcher. Visited Following are two diastereomers of...
Following are two diastereomers of 3-bromo-3, 4-dimethylhexane. On treatment with sodium ethoxide in ethanol, each gives...
Following are two diastereomers of 3-bromo-3, 4-dimethylhexane. On treatment with sodium ethoxide in ethanol, each gives 3, 4-dimethyl-3-hexene as the major product. One diastereomer gives the E alkene, and the other gives the Z alkene. Which diastereomer gives the E alkene? Following are two diastereomers of 3-bromo-2, 3, 4-trimethylhexane. On treatment with sodium ethoxide in ethanol, each gives 23, 4-trimethyl-3-hexene as the major product. One diastereomer gives the E alkene, and the other gives the Z alkene. Which diastereomer gives...
Draw structural formulas of all chloroalkanes that undergo dehydrohalogenation when treated with KOH to give the...
Draw structural formulas of all chloroalkanes
that undergo dehydrohalogenation when treated with KOH to give the
following alkene as the major product.
Draw structural formulas of all chloroalkanes that undergo dehydrohalogenation when treated with KOH to give the following alkene as the major product. Use wedge and hash bonds ONLY for rings. Include both enantiomers in your answer. Do not show stereochemistry in other cases. Separate structures with+signs from the drop-down menu. C P ChemDoodle Submit Answer Try Another Version...
Draw structural formulas of all chloroalkanes that undergo dehydrohalogenation when treated with KOH to give the...
Draw structural formulas of all chloroalkanes that undergo dehydrohalogenation when treated with KOH to give the following alkene as the major product. Use wedge and hash bonds ONLY for rings. Include both enantiomers in your answer Do not show stereochemistry in other cases. Separate structures with + signs from the drop-down menu СР C P C P Cl Cl CH3 CH3 CH3 ChemDoodle ChemDoodle ChemDoodle
The following two reactions with sodium ethoxide in ethanol, each gives 3,4-dimethyl-3-hexene as the major product....
The following two reactions with sodium ethoxide in ethanol, each gives 3,4-dimethyl-3-hexene as the major product. Determine which alkene is formed in each case. Question 8 Et Н Me Me Me Et CH3CH20 (1) Me Me OR Me Et Et Et Et C cis trans Me е CH3CH2O Ме Me Et Ме Me, н (2) OR Et Me Et Et Cl Et trans cis A. 1 cis, 2=cis B. 1-cis, 2=trans C. 1=trans, 2-cis D. 1-trans, 2=trans C D Enter...
15. Complete the following alkene preparation reactions. Show only the major product unless otherwise noted. Show...
15. Complete the following alkene preparation reactions. Show only the major product unless otherwise noted. Show stereochemistry where appropriate. b. 2-heptyne- cis-2-heptene c. Ph-C C-C2-CH3 2) NH CI alc KOH d. 2-chloro-1-isopropylcyclohexane CH3 e. CH CH,CH,CHCHCHOCH/CHOH (show all products, label major) alc KOH Br (show all products, label major) alc KOH h. Cl (show all products, label major) Cl KOtBu /tBuOH (show all products, label major)
Problem 13. Write a bond-line formula for each of the following compounds. (a) (E)-1,4-dibromopent-2-ene (b) (R)-3-chloro-2-methylbut-l-ene...
Problem 13. Write a bond-line formula for each of the following compounds. (a) (E)-1,4-dibromopent-2-ene (b) (R)-3-chloro-2-methylbut-l-ene Problem 14. You have the task of preparing styrene (C.HSCH=CH;) by dehydrohalogenation of either 1- bromo-2-phenylethane or 1-bromo-1-phenylethane using KOH in ethanol at reflux temperature. Which halide would you choose as your starting material to give the better yield of the alkene Explain your answer. Problem 15. The reactions below are unlikely to occur as described. Predict the true major product and the reaction...
Which of the following correctly reflects relative stabilities of carbocations? 3 degree allylic > 2 degree...
Which of the following correctly reflects relative stabilities of carbocations? 3 degree allylic > 2 degree > 1 degree benzylic methyl > 2 degree benzylic > 3 degree 3 degree benzylic > vinyl >1 degree 2 degree allylic > 2 degree > vinyl 1 degree benzylic > 3 degree > 3 degree allylic Dehydrohalogenation of 2-bromobutane in the presence of a strong base proceeds via which of the following mechanistic pathways? S_N1 S_N2 E1 E2 none of the above Which...
For letters h & i : For each of the following reactions, predict the major mechanistic pathway (SN1/SN2/E1/E2...
For
letters h & i :
For each of the following reactions, predict the major
mechanistic pathway (SN1/SN2/E1/E2) and the major organic
products
1. (cont.) (h) НСОН CHB -CHBr HCOH - (0) CH,CH,CH,CH,Br- NH 2. For each of the following indicate which reaction will occur faster. Explain your reasoning. (No credit will be given for guesses) (a) The reaction of (CH),CBr with 0.001M aqueous NaOH or 0.10M aqueous NaOH (b) The reaction of 2-bromobutane with NaOH in DMSO or NaSH...
CH3CH2SCH2CH3 can be synthesized by an Sn2 reaction. Draw the structures of the alkyl chloride and nucleophile that will give this compound in highest yield. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Include all valence lone pairs in your answer. • Separate multiple reactants using the + sign from the drop-down menu. • When a metal counterion is needed, use Na+, but draw it in its own sketcher. Visited Following are two diastereomers of...
Following are two diastereomers of 3-bromo-3, 4-dimethylhexane. On treatment with sodium ethoxide in ethanol, each gives 3, 4-dimethyl-3-hexene as the major product. One diastereomer gives the E alkene, and the other gives the Z alkene. Which diastereomer gives the E alkene? Following are two diastereomers of 3-bromo-2, 3, 4-trimethylhexane. On treatment with sodium ethoxide in ethanol, each gives 23, 4-trimethyl-3-hexene as the major product. One diastereomer gives the E alkene, and the other gives the Z alkene. Which diastereomer gives...
Draw structural formulas of all chloroalkanes
that undergo dehydrohalogenation when treated with KOH to give the
following alkene as the major product.
Draw structural formulas of all chloroalkanes that undergo dehydrohalogenation when treated with KOH to give the following alkene as the major product. Use wedge and hash bonds ONLY for rings. Include both enantiomers in your answer. Do not show stereochemistry in other cases. Separate structures with+signs from the drop-down menu. C P ChemDoodle Submit Answer Try Another Version...
Draw structural formulas of all chloroalkanes that undergo dehydrohalogenation when treated with KOH to give the following alkene as the major product. Use wedge and hash bonds ONLY for rings. Include both enantiomers in your answer Do not show stereochemistry in other cases. Separate structures with + signs from the drop-down menu СР C P C P Cl Cl CH3 CH3 CH3 ChemDoodle ChemDoodle ChemDoodle
The following two reactions with sodium ethoxide in ethanol, each gives 3,4-dimethyl-3-hexene as the major product. Determine which alkene is formed in each case. Question 8 Et Н Me Me Me Et CH3CH20 (1) Me Me OR Me Et Et Et Et C cis trans Me е CH3CH2O Ме Me Et Ме Me, н (2) OR Et Me Et Et Cl Et trans cis A. 1 cis, 2=cis B. 1-cis, 2=trans C. 1=trans, 2-cis D. 1-trans, 2=trans C D Enter...
15. Complete the following alkene preparation reactions. Show only the major product unless otherwise noted. Show stereochemistry where appropriate. b. 2-heptyne- cis-2-heptene c. Ph-C C-C2-CH3 2) NH CI alc KOH d. 2-chloro-1-isopropylcyclohexane CH3 e. CH CH,CH,CHCHCHOCH/CHOH (show all products, label major) alc KOH Br (show all products, label major) alc KOH h. Cl (show all products, label major) Cl KOtBu /tBuOH (show all products, label major)
Problem 13. Write a bond-line formula for each of the following compounds. (a) (E)-1,4-dibromopent-2-ene (b) (R)-3-chloro-2-methylbut-l-ene Problem 14. You have the task of preparing styrene (C.HSCH=CH;) by dehydrohalogenation of either 1- bromo-2-phenylethane or 1-bromo-1-phenylethane using KOH in ethanol at reflux temperature. Which halide would you choose as your starting material to give the better yield of the alkene Explain your answer. Problem 15. The reactions below are unlikely to occur as described. Predict the true major product and the reaction...
Which of the following correctly reflects relative stabilities of carbocations? 3 degree allylic > 2 degree > 1 degree benzylic methyl > 2 degree benzylic > 3 degree 3 degree benzylic > vinyl >1 degree 2 degree allylic > 2 degree > vinyl 1 degree benzylic > 3 degree > 3 degree allylic Dehydrohalogenation of 2-bromobutane in the presence of a strong base proceeds via which of the following mechanistic pathways? S_N1 S_N2 E1 E2 none of the above Which...
For
letters h & i :
For each of the following reactions, predict the major
mechanistic pathway (SN1/SN2/E1/E2) and the major organic
products
1. (cont.) (h) НСОН CHB -CHBr HCOH - (0) CH,CH,CH,CH,Br- NH 2. For each of the following indicate which reaction will occur faster. Explain your reasoning. (No credit will be given for guesses) (a) The reaction of (CH),CBr with 0.001M aqueous NaOH or 0.10M aqueous NaOH (b) The reaction of 2-bromobutane with NaOH in DMSO or NaSH...
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