Please explain why this is a 1,4 addition reaction and what the 1,2 addition reaction would look like:
Please explain why this is a 1,4 addition reaction and what the 1,2 addition reaction would...
5. a) Draw the major 1,2-addition product and the major 1,4-addition product of each of the following reactions. Label each product as either the 1,2-addition product or 1,4-addition product and as either the thermodynamic or kinetic product. (12 pts) H" catalyst H catalyst b) Consider the reaction of a nucleophile with conjugated carbonyl. Provide an example of a nucleophile that would favor the 1,2-addition product and explain why. Provide an example of a nucleophile that would favor the 1,4-addition product...
1. Draw an electrophilic addition that illustrates 1,2-versus 1,4-addition. Using this reaction, explain Kinetic versus Thermodynamic products. 2. Explain resonance hybrid and draw an example that has at least 3 reasonance forms. 3. Draw a typical Diel-Alder reaction. Show the mechanism for your reaction 4. Use the inscribed polygon techiques to illustrate why benzene is aromatic and cyclopentadiene is not 5. Draw the general mechanism for electrophilic aromatic substitution 6. Explain how substituents on the aromatic ring activate or slow...
What is the major product of the following reaction? (1,2 vs 1,4 addition) HCl 40°C CI OCI
Hi, how do we choose if we should do 1,2 or 1,4 addition? What tells that 1,4 is major product instead of 1,2? Luuuu No Date sth Sept 19 N° 33 Cring closing Reaction) Cyclization vuit HEWITT Hi NE PRETRP TP TP TR TRE ARE 1,2- addition OH + - R-NH₂ N - O 1,4- addition michael addition) R-NH2 major product +
ASAP 6.(8) a. The 1,2 addition product of the reaction is shown. Draw the 1,4 addition product. HBr 1,2 1,4 b. Which is more stable? Circle one: the 1,2 product, the 1.4 product. c. Which product is favored at low temperatures? Circle one: the 1.2 product, the 14 product d. "The proximity effect is used to account for the formation of which product? Circle one: the 1,2 product, the 1.4 product. 7. (5) The pesticide chlordane, sold starting in 1948,...
Draw the major 1,2- and 1,4-addition products obtained in the reaction shown. Assume that both are derived from the most stable carbocation intermediate. HCI
Give the 1,2 addition product and the 1,4 addition product from the MOST SUBSTITUTED double bond. HBr CH2Cl2, 80oC H2SO4 Na CH2Cl2, 20°C. Br2 CH2Cl2, 60°C 1,2 addtion product 1,2 addtion product 1,2 addtion product 1,4 addtion product 1,4 addition product 1,4 addtion product
Draw the major 1,2- and 1,4-addition products obtained in the reaction shown. Assume that both are derived from the most stable carbocation intermediate. +HBr You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. If the 1,2- and 1,4- addition products are the same due to symmetry, only draw one structure. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple products using the +...
4. Write the 1,2 and 1,4 products of addition of HBr to 1,3-hexadiene. Write the complete stepwise mechanism. Which product is the major if the reaction is taking place at 40°C? (4 points)
6. Draw both the 1,2- and the 1,4-addition products of the following substrate. Circle the kinetic product (2 pts.). HBE (1 ) 7. Construct an inscribed polygon in the circle provided to illustrate the molecular orbitals for the cycloheptatrienyl anion. Illustrate the relative energies of all the molecular orbitals, label bonding and anti-bonding and assuming this species is planar, assess whether it is non-aromatic, aromatic, or anti-aromatic. Explain why (2 pts.).