Concept explainers
Interpretation:
The structure of the lactone formed as the final product in the given reaction and havinga molecular formula
Concept Introduction:
Carboxylic acids in presence of the reagent
However, the dianion formed has carbanionic character and it can potentially act as anucleophile to create a new carbon-carbon single bond.
The reactions of dianions with
The hydroxy acid generated can be then cyclized to yield a lactone, this creates a new carbon-oxygen single bond between carbonyl carbon in the carboxylic acid group and the oxygen atom in the epoxide.
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ORGANIC CHEMISTRY-W/STUD.SOLN.MAN.
- The molecular formula of unknown compound B is C10H16.Quantitative brominationof a 0.473-g sample of compound Brequired 48.22mL of a 0.216MBr2/CCl4to produce a color change. How many rings and pi bonds does compound Bcontain?Include any explanations/calculations to justify your answers.arrow_forwardGive a clear handwritten answer with explanation..complete the following reactions with their stereochemistry?arrow_forwardFor each of the following, write the major product(s) and then draw out each step in the mechanism using curved arrows. Show ALL lone pair electrons and formal charges. Redraw ALL molecules as to show explicitly ALL bonds being broken or formed. Identify the molecular orbital (HOMO) of the nucleophile and the molecular orbital (LUMO) of electrophile involved in the nucleophilic attack. MO diagrams are not necessary..arrow_forward
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- 3c)Referring to the intermediates you drew in problem below explain in detail why no meta product is obtained in the Friedel-Crafts alkylation of chlorobenzene. Draw all pertinent resonance structures to support your argument.arrow_forwardRank these nucleophiles from most to least reactive for substitution reactions and give a brief rationale for your answer.arrow_forwardGive the structure of the main product of each of the following Diels-Alder reactions. Make sureto show the stereochemistry of the products when unambiguous.arrow_forward
- Please provide a curved-arrow mechanism for the following reaction. Be sure to use your mechanism and a few words to explain the regiochemistry of the bromines in the final product and why each carbocation intermediate in your mechanism is the preferred intermediate for that step. Include ALL lone pairs and formal charges. Thank you.arrow_forwardHighlight the allylic hydrogen(s) in this structure.arrow_forwardGive the structure(s) of the product(s) of each reaction. Indicate any relative stereochemistry, assuming that each of the Diels-Alder reactions will proceed with endo selectivity. If more than one product is formed, please indicate which one will be the major product or if they will be formed in equal amounts. If no reaction is expected to occur under the indicated conditions, then write "no reaction" or NR, and explain why you would expect nothing to occur. In all cases, equimolar amounts of both components/reagents are present unless indicated otherwise.arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning