Consider the following set of carbocations and answer the questions that follow. A в i. The secondary carbocation(s) in the above set is/are..? ii. The most stable carbocation in the above set is...? i. Give a detailed reason for your choice in ii above.

Please don't provide handwritten solution ....

Rank the carbocations below in order of increasing stability (least stable = 1; most stable = 3). Place the number corresponding to the carbocation's relative stability in the blank below the structure. Pathway B CH3 CH3 I (CH3)2C-CH-CH₂ + CH₂ Below are all the chemical structures and intermediates involved in a reaction. On the structures provided, show all electron flow using the arrow formalism for the complete stepwise mechanism. Pathway A (CH3)3CCH=CH₂2 H-Cl (CH3)3CCH-CH3 :Cl CH3 CH3 (CH₂)2C-CH-CH₂ (CH3)3CCHCH3 Cl A Cl I (CH3)₂ CCHCH; T CH3 B

Provide the systematic or common names of the compounds shown below in the blanks given, including stereochemistry (i.e., E, Z, R, S, etc.) if necessary. но H. ČI Name Name Name

Draw a structural formula for the more stable carbocation intermediate formed in the reaction shown. CH3CH2 CH₂CH₂CH3 H H + HI • You do not have to consider stereochemistry. • Do not include anionic counter-ions, e.g., I, in your answer. • For cases in which carbocations of the same or similar stability are expected, draw all of the structures. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate structures with + signs from the drop-down me menu. ChemDoodleⓇ [ ] در > Previous Ne:

Identify ALL products expected from this reaction. Bonus question (for class): Draw the products expected if water were added instead of CH2Cl2 Br2 CH2Cl2 Br Br Br Br Br Br.. Br Br A B C D

Draw the intermediate product, be sure to include formal charges. Do not include lone pair electrons. :O: OCH3 1,4-addition of the Ph2S sulfur ylide to the B carbon edit structure ... a sulfur ylide

How many and what type of products will form if the following molecule undergoes E1? H Br choose your answer... V total product(s) form. choose your answer... V will be optically active.

In parts 1 and 2 draw the two organic products of this reaction, showing any nonzero formal charges. Then, in part 3 answer the question regarding purification of the reaction mixture. 1. Draw the product with the higher molecular weight here:  2. Draw the product with the lower molecular weight here: