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- Zaitsev's Rule refers to: which alkene is favored in a product mixture O how resonance contributors stabilize cations/anions/radicals O the stereochemistry of reaction intermediates/transition states O the stability of carbocation intermediatesIn organic chemistry, an elimination process involves the removal of the hydrogen and a halide (i.e. dehydrohalogenation), in which they are ___ to each other, forming an alkene. syn-orientation co-periplanar anti-periplanar Z- orientationThe conversion of reactant R to product A is under control and is preferred a temperature kinetic, low kinetic, high thermodynamic, low thermodynamic, high The conversion of reactant R to product B is under control and is preferred at temperature kinetic, low kinetic, high thermodynamic, low thermodynamic, high Electrophilicity is the tendency of a species to accept electrons due to energy orbitals. low, unoccupied low, occupied high, unoccupied high, occupied
- In the E2 reaction of 2-bromopentane with sodium tert-butoxide, 1-pentene is favored over 2- pentene. It is based on O the size of base used. O the Zaisev's rule. O the strength of the base used. O the Hoffman product. O the stability of alkene3) Explain how and why the reaction below results in the observed regiochemistryand/or stereochemistry.Examine the following pericyclic reactions.Tell whether it is an electrocyclic reaction, a cycloaddition reaction, or a sigmatropic rearrangement.
- Use the drop-down features to describe the given reaction. HBr ROOR Addition of HBr in the presence of peroxides results in the This regiochemistry is favored because the more stable radical intermediate Hint Question 2 ? Incorrect. anti-Markovnikov addition of H and Br across an alkene pi bond. ✓is involved. OH atom abstraction, followed by Br atom abstraction Addition of the Br atom to the alkene, followed by H atom abstraction Br atom abstraction, followed by H atom abstraction OH atom abstraction, followed by addition of the Br atom to the alkene O Protonation of the alkene, followed by combination with a Br atom Attempts: 1 of 3 used After formation of a Br atom radical (the initiation step), what is the most likely sequence of steps to generate the major product?Rank the following alkenes from the most to the least stableI am studying so much but I am not sure if these are correct. Can you go over it plsss? A Hoffmann product is O the result of the fastest mechanistic process. the most highly substituted alkene possible. the same as the Zaitsev's product, but the term "Hoffmann" is used for E2. the most stable alkene. What does Zaitsev's rule state? As the degree of substitution around the C=C of an alkene decreases, the stability of alkene increases. None of the statements is correct. O As the degree of substitution around the C=C of an alkene decreases, the stability of alkene decreases. As the degree of substitution around the C=C of an alkene increases, the stability of alkene decreases.
- Classify the pericyclic reaction and indicate how many bonds broken/formed. + || CycloadditionAlthough stepwise, bromination of alkenes does not have the possibility of rearrangement because the intermediate is a rather rigid and closed bridge, and not an open carbocation. O halogenation reactions do not have rearrangements. None of the answers is accurate. O the intermediate is an open carbocation, and not a rigid bridge.Label the following alkenes from most stable, moderate and least stable.