For the following set of E2 reactions, draw the major organic product and indicate which reaction occurs at the faster rate (same expected products for both, can draw once) CH3 H3C H3C CH3 -CH3 S=O CH3 CH3O S=O

Select the arrow drawing that best describes this step of an E1 reaction. H I-0: н. Oi O ii O iii O iv нн H3C I i CH3 нн H3C CH3 I-0: н. I H3C I H нн нн H3C CH3 iv CH3

For the following E1 reaction, draw the correct intermediate and major organic product. .CH3 H;C NH3 H Br

List all alkene products for each reaction. Write a mechanism for the formation of each product following E1 or E2 mechanisms as appropriate. Be sure to draw arrows for the mechanism.

Consider the following reaction scheme (note that the reagent shown above the arrow is DBN"). Draw in the expected major product AND indicate what mechanism the reaction will follow. Product: Mechanism:

Plaase don't provide handwritten solution

3. Both El and E2 reactions are possible with 3° alkyl halides. Which elimination mechanism would be favored by the base NaOH? Show the curved arrow mechanism leading to both regioisomers. Draw the energy diagram for this reaction and include the transition state structure leading to each of the possible products. Indicate which one would be favored and use the energy diagram to explain your reasoning. How would you favor the other regioisomer? Br z odd NaOH

Predict the stereochemical outcome for the following E2 reaction. Draw only the major product of the reaction. NaOH ? Br

Alkyl diazonium salts decompose to form carbocations, which go on to form products of substitution, elimination, and (sometimes) rearrangement. Keeping this in mind, draw a stepwise mechanism that forms all of the following products.

The following reaction will undergo a Br CH3OH SN1 E1 E2 SN2 OCH +HBr mechanism.