Concept explainers
Interpretation:
Whether each step in the given mechanism is reasonable or not is to be determined. An explanation is to be given for any steps that are not reasonable.
Concept introduction:
Reasonableness of a multistep mechanism and the individual steps in it are evaluated on the basis of a few rules. Proton transfer reactions must be compatible with the reaction conditions. Strong acids cannot exist under basic conditions and strong bases cannot exist under acidic conditions. Proton transfer reactions are very fast compared to other reactions, so they can be added at any stage as long as they are compatible with the conditions. An intramolecular proton transfer is generally not reasonable, particularly if the solvent is acidic or basic. In this case, a solvent mediated proton transfer is more likely. Another important rule is related to the number of species that participate in an elementary step. Typically only one or two species react in a given step. Steps containing three or more molecules/ions are extremely rare, and therefore unreasonable. In an
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Organic Chemistry: Principles and Mechanisms (Second Edition)
- Please draw the mechanism of THESE TWO REACTIONS.arrow_forwardPlease show the mechanism for these reactions.arrow_forwardComplete all the reactions/show the products, and for each reaction clearly and thoroughly explain which mechanism (E1, E2, SN1, SN2) is predominant and how it effects the product formation.arrow_forward
- Explain the possible mechanism (Sn1/Sn2/E1/E2) given the reaction. Show the transfer of electrons/groups, and name the product.arrow_forwardPlease explain each mechanism/step taken in order to get the product.arrow_forwardComplete all the elimination reactions/show the products, and for each reaction clearly and thoroughly explain which mechanism (E1, E2, SN1, etc.) is predominant and how it effects the product formation.arrow_forward
- Describe the predominant mechanism( SN1, E1, SN2, E2) in the following reaction to draw the major product(s).arrow_forwardshow the mechanism of the given belowarrow_forwardSelect one activator & ortho para director to be on a benzene ring to start. You will then add a bromine to this group showing the COMPLETE mechanism, including all resonance structures. Put a box around the stabilizing resonance structure and explain why it is stabilizing.arrow_forward
- Help! Please explain in detail. Thank you! Consider the following overall reaction and proposed mechanism. Evaluate whether each step of the mechanism is reasonable. For each step that is not reasonable, explain why.arrow_forwardplease show the detailed mechanism for the reaction below.arrow_forwarda) Draw a detailed mechanism for the initiation phase of this reaction.b) Draw a detailed mechanism for the propagation phase of this reaction. c) Give one example of chain termination, showing a detailed mechanism for this event. d) Briefly explain why the bromine atom ends up on the more substituted position.arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning