21. Propose complete mechanisms for the reactions shown (6 pts.) Br2 Et2NH
20. Propose complete mechanisms for the reactions shown (6 pts.) HPO OH Heat
6. Propose detailed, arrow.pushing mechanisms for the following reactions
Predict the major product of the following reaction, and draw complete mechanisms for the initiation and propagation steps. Propose 2 termination steps. Label each elementary step. Br2 hv Initiation: Propagation:
Predict the major product of the following reaction, and draw complete mechanisms for the initiation and propagation steps. Propose 2 termination steps. Label each elementary step. Br2 hv Initiation: Propagation:
V. Mechanisms A. (18 pts) Propose a detailed mechanism to explain the following reactions. Make sure to draw ALL pertinent resonance structures. je hi ha rör
3. MECHANISMS: Provide complete, arrow-pushing mechanisms for each of the reactions shown below. Only TWO of these will be graded but YOU MUST COMPLETE ALL FOUR TO EARN ANY CREDIT! (8 pts.) (note: only mechanism for step 1) 1. Hg(OAc), CH3OH H20 H2SO4 tocha 2. NaBH
Propose a mechanism for the following reaction:
11. Propose mechanisms for the following reactions. Draw all arrows, lone pairs, formal charges, counter ions, and label all reaction steps (e.g. proton transfer, loss of leaving group, etc.). A. (13 pts) CH:NH 2 N N - CH3 Cl
Propose Mechanisms for each of the following Reactions:
RO Ieq. NaOEtRO Propose a Mechanism R'O R'O
4. [12 pts] Propose mechanisms for the formation of all 3 products shown in the reaction below: (draw curved arrows, intermediates, and resonance structures if necessary. NO NEED FOR TRANSITION STATES! CH CH CH CH Br Heat CH,CH,OH OCH.CH Mechanism.14 points) Mechanism 2 points) Mechanism.3 14 points) 5. [14 pts] Provide the major products of reacting the alkene shown in the middle of the scheme below with all the reagents independently. Draw the products' structures in the corresponding table below...
Part II. Mechanisms!!! Propose mechanisms using arrow-pushing
notations to show the transformations of
the following reactions.
d) CH OH heat CH, OH heel NE он EN E CH OH heat
V. Mechanisms A. (18 pts) Propose a detailed mechanism to explain the fol draw. ALL pertinent resonance structures. lanism to explain the following reactions. Make sure to b) Nah: - Br THE