Give the structures of both of the 1,2 and 1,4 intermediates and products for the reaction of 1 equivalent of HBr with 2,3-dimethyl-1,3-cyclohexadiene
Give the structures of both of the 1,2 and 1,4 intermediates and products for the reaction...
3. 1,2-dimethyl-1,3-cyclohexadiene reacts with HCl to form up to four different products. HCI 4 possible products a. b. Give the structures for the four products. When the reaction is run at low temperature, two products are formed preferentially ldentify these two products. c. When the reaction temperature is increased, a single product is favored. Identify the major product under these reaction conditions
When 1,4-dimethylcyclohepta-1,3-diene is treated with HBr at an elevated temperature, the 1,2 product predominates rather than the 1,4 adduct. Explain and draw the 1,2 and 1,4 products.
6. Using curved arrows and showing the structures of all the intermediates, write a mechanism to account for the formation of 1,2- and 1,4-addition products in the following reactions CI CI C12 (1 mole) Cl Cl 1,2-addition 1,4-addition + HBr (l mole) Br 1,2-addition 1,4-addition
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)
Draw the structure of each of the following compounds: 1,4-Cyclohexadiene 1,3-Cyclohexadiene (Z)-1,3-Pentadiene (2Z,4E)-Hepta-2,4-diene 2,3-Dimethyl-1,3-butadiene
Draw the major 1,2-and 1,4-nddition products obtained in the reaction shown Assume that both are derivd from the most sable carbocotion 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 bottorm night comer Separate multiple products using the+ sign from...
Draw (in bond line formula) the 1,2- and the 1,4-product of the following reaction with one equivalent HBr(aq). 1,2-product HBr K 1,4-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. HCI
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 Hatoms • 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 •...