G 5% Carbocation Rearrangements 7) Draw the 5 MOST LIKELY carbocation rearrangements of the following intermediate. Bonus: Put an X next to the least likely structure and briefly explain why. alk of

The cis isomer of 1-bromo-4-tert-butylcyclohexane undergoes E2 elimination about 1,000 times faster than the trans isomer. Explain why the cis isomer reacts faster. Hint: It is not because of steric hindrance. Br + NaOH Fast (H3C),C (H3C);C Br + NaOH Slow (H3C);C' (H3C);C

2. Draw the carbocation intermediates (if any exist) and the products for each reaction. Include any intermediates and products arising from carbocation rearrangements. Be sure to include stereochemistry!!! 1. ВНз 2. Н2О2, NaOн H2SO4 H20 Br2 HO. H2SO4 HOʻ

What reaction out of each pair is faster?????

What are the possible constitutional isomers and rank by SN2 reaction.

1. SN1 or SN2 2. Include major product and stereochemistry  3. Add detailed reaction mechanisms

In the E2 reaction of 2-bromopentane with sodium tert-butoxide, 1-pentene is favored over 2- pentene. It is based on O the size of base used. O the Zaisev's rule. O the strength of the base used. O the Hoffman product. O the stability of alkene

c. Snl reactions dominate under polar protic solvents. Increasing the polarity of the solvent will increase the rate of the reaction because the polar solvent will stabilize the dispersed charges on the transition state more than it will stabilize the neutral reactant. Label areas of ô* and & on the molecules of the transition state of the SN1 reaction below: Me Me Ме Me Me H20 Br -Br OH + НО \'H Et Et RDS Et H Et Et transition state not isolable carbocation intermediate not isolable

In the first box, draw the tetrahedral intermediate involved in this reaction.In the second box, draw the product of the reaction.Include all lone pairs of electrons and nonzero formal charges. Do not add curved arrows.

b) Circle the major product for the following reaction. CH,CH,CI -C- H2 O2N AICI; O2N- O2N- H2 H2 II O2N- O2N H2 H2 III IV