
(10 pts) 4. List the three things we have learned that carbocations can do. Predict the...
1. (4 pts) Rank each of the following carbocations in order of stability (1 most stable and 4 least stable). н н сH н Н,с Н,с" H сH; CH3 Hас- H 2. (6 pts total; 2 pts each) Complete the following transformations by indicating the reactant structure or the major organic product(s). Place your answer(s) in the space provided. Be certain to indicate stereochemistry where applicable. Cl2 Он cat. H2SO H-о Br Br conc. HBra) сн сна 3. (10 pts...
Can some show me the correct mechanism for the following
reactions
Predict the major product of the following reaction sequence. 1. CHOH, H 2. NaOCH Br ? QH 3. NaOH 4 H30 کلام علام ال CH || III سلام Br IV
(24 pts) 3. Predict the product(s) for each reaction. Indicate stereochemistry if known. If more than one product is predicted, circle the one you think would be major. If there is no reaction expected, then indicate NR. а. HaCl.. Br NaCN THF b. Н—Br ether ОН с. CH3 КОН Br THF d. НОСН heat е. PBr3 ОН ether f. ОН NaSCH3 Hо g. cat Br H2SO4 heat ОН h Br H но heat Br
7. (10 pts) Predict the major product and show the mechanism for the following reaction 1. OH 2. H30+,a (5 pts) Provide a synthesis of the following compound using ammonia (NH) 8.
7. (10 pts) Predict the major product and show the mechanism for the following reaction 1. OH 2. H30+,a (5 pts) Provide a synthesis of the following compound using ammonia (NH) 8.
Predict the product of the following molecule. Can you also show
the detailed mechanism to help? Thanks :)
Predict the product of the following reaction: (3 pts) NaH ОН Br
IVa.1) (10 pts) You are asked to run the following reaction in the lab. Al isolation of the product sample, you run a GC. ked to run the following reaction in the lab. After completion and HBr ether Enthalpy change= -200 kJ/mol Show the complete mechanism and label all intermediates and predict ANY major and/or minor product(s) (4 points)
1. Predict the major product of the reaction. Clearly indicate stereochemistry, if necessary (3 pts) Ph H2 Lindlar cat. hexanes Me 2. Provide reagents to achieve the shown multi-step transformations. (6 pts) Br CH 3. Draw a detailed arrow-pushing mechanism for the following transformation. (4 pts) OME B OMe Me Me NaOH H2O2 Me Me H
PLEASE HELP FAST!!!
1. Predict the major product of the reaction. Clearly indicate stereochemistry, if necessary (3 pts) H 1.9-BBN-H THE Me Me 2. NaOH H202 2. Provide reagents to achieve the shown multi-step transformations. (6 pts) H Me Me Br Br Me Br Br 3. Draw a detailed arrow-pushing mechanism for the following transformation. (4 pts) Ph Li(0) Ph Ph Ph NH30)
b) (13 pts) The following reaction a combination of mechanisms that we have learned. As you see, we begin with an acetal that is reacted under acidic, anhydrous (no water) conditions. Rather than adding water and hydrolyzing the acetal forms intermediate B, subsequently rearranging to form the final product. Please propose an electron pushing mechanism to account for formation of the final product that goes thru intermediate B anhydrous
In each reaction Predict the major organic product(s). Where
necessary show appropriate stereochemistry and regiochemistry. DO
NOT DRAW THE MECHANISM!
1) Br/FeBr 2) Separate p-isomer 3) CH3CH2B(OR)2/PdL2/NaOH 4) KMnO4/NaOH/A 5) H 0 1) Br2/FeBr3 2) Separate p-isomer 5) H30 3) CH3CH2B(OR)2 4) KMnO4/NaOH/A PdL2/NaOH C. C.