14. a. Label the reactive features, highlight the most reactive one, then highlight what it needs. Also, state if the reaction will start to create a carbocation, carbon radical, or carbanion, or will cause loss of aromatic character. If a carbocation, carbon radical, or carbanion starts to develop, label where that will occur. butanone + CH.MgBr followed by acid b. Use mechanism arrows to illustrate the reaction that occurs. c. If applicable, use stabilization resources to deal with the carbocation, carbon radical, or carbanion that starts to develop during the reaction, and draw the structure of any resonance-stabilized intermediate. d. Continue labeling and diagramming the reaction until you find the major stable product(s). c. Finally, state the stereochemistry of the major product(s) and use either Fisher projection or perspective formula representations to illustrate that stereochemistry.

13. a. Label the reactive features, highlight the most reactive one, then highlight what it needs. Also, state if the reaction will start to create a carbocation, carbon radical, or carbanion, or will cause loss of aromatic character. If a carbocation, carbon radical, or carbanion starts to develop, label where that will occur. pent-3-en-2-one + NaBH, followed by acid b. Use mechanism arrows to illustrate the reaction that occurs. c. If applicable, use stabilization resources to deal with the carbocation, carbon radical, or carbanion that starts to develop during the reaction, and draw the structure of any resonance-stabilized intermediate. d. Continue labeling and diagramming the reaction until you find the major stable product(s). e. Finally, state the stereochemistry of the major product(s) and use either Fisher projection or perspective formula representations to illustrate that stereochemistry.

16. a. Label the reactive features, highlight the most reactive one, then highlight what it needs. Also, state if the reaction will start to create a carbocation, carbon radical, or carbanion, or will cause loss of aromatic character. If a carbocation, carbon radical, or carbanion starts to develop, label where that will occur. propanoyl chloride with xs. NABH, followed by acid b. Use mechanism arrows to illustrate the reaction that occurs. c. If applicable, use stabilization resources to deal with the carbocation, carbon radical, or carbanion that starts to develop during the reaction, and draw the structure of any resonance-stabilized intermediate. d. Continue labeling and diagramming the reaction until you find the major stable product(s). e. Finally, state the stereochemistry of the major product(s) and use either Fisher projection or perspective formula representations to illustrate that stereochemistry.

a. Label the reactive features of the following reactants, select the most reactive feature, then write and highlight what it needs. Also, state if a carbocation, carbon radical, or carbanion will start to develop, and/or if aromatic character will be lost as a result of a reaction between these molecules. bromobenzene + 2-chloro-3-methyl butane + AICI3 b. Use mechanism arrows to illustrate the reaction that occurs. If applicable, use stabilization resources to deal with the carbocation, carbon radical, or carbanion that starts to develop during the reaction, and draw the structure of any resonance- stabilized intermediate. Continue labelling and diagramming the reaction until you find the major stable product(s). Finally, state the stereochemistry of the major product(s) and use either Fisher projection or perspective formula representations to illustrate that stereochemistry.

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14. Draw structures to explain ring-flipping. Be sure to show all hydrogens. 15. Describe the positions of the two chlorine atoms as either axial or equatorial. H CI CI H 16. Give an example of the propagation steps in a free-radical mechanism. Show equation and correct arrows and symbols.

2. Since both molecules have possible nucleophilic and electrophilic sites, use trial and error to see what happens. Follow the instructions below, and analyze whether the product is reasonable or not. i) Note: In order to not overfill an octet, pi electrons need to become a lone pair. We've practiced this with resonance, now you're going to practice it with chemical reactions. Nuc O NH₂ Elec directly attach to S. Do not overfill octets This product is unreasonable because:

13. a. Label the reactive features of the following reactants, select the most reactive feature, then write and highlight what it needs. Also, state if a carbocation, carbon radical, or carbanion will start to develop, and/or if aromatic character will be lost as a result of a reaction between these molecules. phenol + Cl, and FeCl; b. Use mechanism arrows to illustrate the reaction that occurs. If applicable, use stabilization resources to deal with the carbocation, carbon radical, or carbanion that starts to develop during the reaction, and draw the structure of any resonance- stabilized intermediate. Continue labelling and diagramming the reaction until you find the major stable product(s). Finally, state the stereochemistry of the major product(s) and use either Fisher projection or perspective formula representations to illustrate that stereochemistry.

For the reduction of 2-methyl cyclohexanone to methyl cyclohexanol using NaBH4...   1. What is the reaction mechanism (draw curved arrows)? What is the nucleophile? Electrophile? 2. Using your reaction mechanism from the above question, sketch the reaction coordinatediagram. What does the transition state most likely look like? What is the rate-determining step?

please draw detailed mechanism. mention which one is the nucleophile, electrophile,base/ acid. Also talk about stereochemistry/ regioselectivity. In terms of stereochemistry why are we getting trans alkene. Why is the trans alkene Produced is it due choosing PPh2 as regeant? Also This reaction is the Horner wadsworth emmond wittig.