CHEM 1C Lecture Notes - Aria, Theta Role

I REALY need help with this for my Organic chemistry class, youcan chose any 4:

Find four examples of biological reactions thatfour different reaction mechanisms from the following in organicchemistry: electrophilic addition, nuclecleophilic addition tocarbonyls; nucleophilic carbonyl substitution; radicalsubstitution; electrophilic aromatic substitution; SN1; SN2; E1;E2; E1cb.

For each of the four reactionschosen:

1. Draw structures for starting material(s), product(s), andcatalysts (for example, proton donor/acceptor sites of activesites).

2. In a separate color, used curved arrows to show electronflow.

3. If more than one mechanistic step is needed, show allsteps.

4. Indicate in no more than 2 sentences, what largercycle/process contains the reaction shown