A) Below is a conjugated diene. Show the possible 1,2-product and 1,4-product in the reaction with HCL ( H-CI B) For the reaction in part A above, show the mechanism for the formation of the 1,4-product including any necessary resonance structures which explain regioselectivit C) In the energy diagram below, label the carbocation intermediate, the thermodynamic product and kinetic product. Which product is formed at -80C and why? MacBook Air

A) Below is a conjugated diene. Show the possible 1,2-product and 1,4-product in the reaction with HCL ( H-CI B) For the reaction in part A above, show the mechanism for the formation of the 1,4-product including any necessary resonance structures which explain regioselectivit C) In the energy diagram below, label the carbocation intermediate, the thermodynamic product and kinetic product. Which product is formed at -80C and why? MacBook Air

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter14: Elimination

Section: Chapter Questions

Problem 40CTQ

See similar textbooks

Similar questions

For the following dienes, predict the product and draw the full arrow pushing mechanism. Label each product as thermodynamic or kinet
A2 What is the inverse electron demand Diels–Alder reaction? Please pick a pair of a diene and a dienophile from the following dienes and dienophile that will undergo this type of reaction. Please show how this reaction works using Frontier Molecular Orbitals. What is the reaction product?
Complete the following by drawing products for a and b, and also identify the diene and dienophile in each one.
which of the following general statements is true about the addition of HBr to conjugated dienes (A) At low temperature, the 1,2-adduct predominates (B) At low temperature, the 1,4-adduct predominates (C) At high temperature, the 1,2-adduct predominates (D) Temperature does not affect the outcome of the reaction
a. When HBr adds to a conjugated diene, what is the rate-determining step? b. When HBr adds to a conjugated diene, what is the product-determining step?
Why does the diene need to be in the s-cis conformation to yield the cyclic product?
Draw a Diels-Alder reaction that shows the stereospecificity of the reaction with respect to both the diene and dienophile, and that would follow the endo rule (show only the major product).
1)Chemistry students are taking an experimental course in organic chemistry at a public university. During an experiment involving conjugated dienes, some doubts arose when discussing the results obtained so far: (a) A student obtained two products from the reaction of 1,3-cyclohexadiene with Br2. His lab partner was surprised to get only one product from the reaction of 1,3 - cyclohexadiene with HBr. Explain these distinct results. (b) One student, seeing the discussion of colleagues, commented that she obtained two distinct products when reacting 1,3,5-hexatriene with HBr, with different yields just by changing the reaction temperature. Explain the results she obtained using reaction mechanism and based on kinetic and thermodynamic control involving conjugated dienes.
Which diene will react the slowest with ethylene? The correct answer is B, however I think C is the most stable so please explain!!
For 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..
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.
Draw the mechanism of the hydroboration reaction for 1-octene. Why are carbocation rearrangements not observed in this reaction?