Following are two diastereomers of 3-bromo-3, 4-dimethylhexane. On treatment with sodium ethoxide in ethanol, each gives...
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...
formulas of all chloro that u when treated with KOH to give the following alkene as the major product. . Do not show stereochemistry in other cases. . Separate structures with + signs from the drop-down menu. ChemDoodle 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...
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...
Draw the major condensation product obtained by treatment of ethyl butanoate with sodium ethoxide in ethanol. Draw the major condensation product obtained by treatment of ethyl butanoate with sodium ethoxide in ethanol. • You do not have to consider stereochemistry. • In cases where there is more than one answer, just draw one.
What alkene is formed when 1-bromo-4-methylcyclohexane reacts with sodium ethoxide as the base, in ethanol solvent. (elimination) Is the alkene chiral or achiral? Are there any stereoisomers of this alkene?
Highlight Answer Explain using mechanistic arguments why the reaction of 2-bromo-1,2-diphenylpropane (either enantiomer) with sodium ethoxide (NaOEt) in ethanol (EtOH) at 80°C produces mainly (E)-1,2-diphenylpropene [little of the (Z) diastereomer is formed]. Br EtONa EtOH, Δ + Z (major) (minor) The carbocation required for formation of the Z diastereomer is higher in energy because of electron withdrawing inductive effects. O The carbanion required for formation of the Z diastereomer is higher in energy because this transition state has fewer resonance...
Treatment of phenyl 3-oxo-3-phenyl propanoate with sodium ethoxide (in ethanol) followed by the addition of a molar equivalent of allyl bromide should yield which organic compound as the major product? a. phenyl 2-allyl-3-oxo-3-phenylpropanoate b. benzyl 2-allyl-3-oxo-3-phenylpropanoate c. phenyl 2-methyl-3-oxo-3-phenylpropanoate d. phenyl 2-allyl-3-oxo-3-phenylpropanone e. phenyl 2-allyl-3-oxo-3-phenylpentanoate
cis-1-bromo-4-tert-butylcyclohexane and trans-1-bromo-4-tert-butylcyclohexane both react with sodium ethoxide in ethanol to give 4-tert-butylcyclohexene. However, one of the isomers reacts much more rapidly than the other isomer. Predict which isomer is reacting faster by showing a mechanism for each isomer. Your answer should account for the slower reacting substrate.
4. When 1-iodo-1-methylcyclohexane is treated with sodium ethoxide, the more highly substituted alkene product predominates. Alternatively, when potassium tert-butoxide is used as a base, the less substitute alkene predominates. Give the structures of the two bases, and the two products and explain the difference in regioselectivity. 5. Draw the diastereomer of the compound shown below. Explain which chair conformation one will react faster in the presence of a strong base to give a substituted cyclohexene. (Draw the chair structure of...
Please provide a structure for each of the following names. 1-Bromo-3-methylcyclohexene 3-Ethyl-2-pentene cis-3-Octene (Z)-3-Methyl-2-hexene Vinylcycloheptane (Z)-1,3,5-Tribromo-2-pentene 1,2-Diethyl-cyclopentene Vinybromide 2,3-Dimethyl-2-butene 3,7,7-Trimethyl-4-octene 4-lsopropyl-1-nonene (E)-3-Methyl-2-heptene