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(d) Does the product have the same stereochemistry with the reactant? Explain.
Instructions: Answer part (d) only
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- Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. Long and detailed explanations are not needed. Keep it short, brief, and direct because I only need the answers as soon as possible. Determine the number of stereogenic centers in 3,4,5,6-tetraethyldecane. a. 1b. 2c. 3d. 4For parts b and c could you please explain why there is a cis isomer formed and how to know when there will be one. For part e do you have to rearrange the compound to achieve the antiperiplanar orientation? Predict the products formed by sodium hydroxide-promoted dehydrohalogenation of the following compounds. In each case, predict which will be the major product. (b) 2-chlorobutane (c) 3-bromopentane (e) trans-1-bromo-2-methylcyclohexane.(1) Draw or illustrate the stereochemistry of the product between 1-Ethyl-1-cyclopentene and Br2 and (2) illustrate the reaction mechanism.
- Drawing on what you know about the stereochemistry of alkene addition reactions, a. write the mechanism for the reaction of 2-butyne with one equivalent of Br2. A. predict the configuration of the product of the reaction.Draw the structure of the alkene product for the E2 elimination reaction shown below. Clearly indicate EZ stereochemistry in your answer.Using cis- and trans-hex-3-ene, demonstrate that the addition of HCl is not a stereospecific reaction. Draw the structure of the stereoisomers formed from each alkene.
- A student adds NBS to a solution of 1-methylcyclohexene and irradiates the mixture with a sunlamp until all the NBS has reacted. After a careful distillation, the product mixture contains two major products of formula C7H11Br. (a)Rank these three intermediates from most stable to least stable.(1) Predict the outcome of the addition of HBr to (a) trans-2-pentene, (b) 2-methyl-2-butene, and (c) 4-methylcyclohexene. How many isomers can be formed in each case? (2) Addition of HBr to 3,3-dimethyl-1-butene gives a mixture of two isomeric alkyl bromide products. Draw structures for the two products, and give a mechanistic explanation for their formation.Propose a plausible mechanism for the 1 to 2 conversion as shown, and explain the stereochemical result:
- Based on the more stable conformation (conformation A), need help providing two mechanisms for the E2 elimination of the protonated version of cis-1 using a general base (B:) to give alkenes 2 and 3. Clearly show which hydrogens meet the stereochemical requirements for E2-elimination Using Zaitsev’s rule, indicate which is favoured. Pictured is also a reaction mechanism to show what the alkenes 2 and 3 are. Thank you :)Draw all four products that are expected when 2-ethyl-3-methyl-1,3-cyclohexadiene is treated with one equivalent of HBr at room temperature, and show mechanisms for their formation.For the mechanism, include lone pairs and charges in your answer. Do not draw out any hydrogen explicitly. Do not use abbreviations such as Me or Ph.On acid-catalyzed dehydration, 1-butanol (CH3CH2CH2CH2OH) can be converted to 1-butene. Write out an equation for the reaction Assign each the appropriate symbol for the mechanism of the reaction (E1 or E2) Draw a suitable mechanism for the reaction