The mechanism for each step in the pathway given for bio synthesizing epi -Aristolochene is to be shown using curved arrows. Further the steps that involve electrophilic addition(s) to the alkene and that involve carbocation rearrangement(s) are to be identified. Concept introduction: While drawing curved arrows the head of the curved arrow starts from the nucleophilic source (either negatively charged or neutral) and ends in an electrophilic sink (either positively charged or neutral). The formation of a new bond should lead to the breaking of a bond that already exists as the octet rule cannot be violated. In electrophilic addition reactions, the first step is the attack of the π electrons of the double bond on the hydrogen of another reactant to yield a carbocation. One of the carbon in C=C gets attached to hydrogen while the other acquires a positive charge. In the second step, the carbocation formed can rearrange to give another more stable carbocation either by a hydride shift (shift of hydrogen atom with its electron pair) or by an alkyl shift (shift of an alkyl group with its electron pair) between neighboring carbons. In the last step the carbocation produced reacts with a negatively charged ion or eliminates a proton to give the product. To show: The mechanism for each step in the pathway given for bio synthesizing epi -aristolochene using curved arrows. Further to identify the steps that involve electrophilicaddition(s) to the alkene and that involve carbocation rearrangement(s).
The mechanism for each step in the pathway given for bio synthesizing epi -Aristolochene is to be shown using curved arrows. Further the steps that involve electrophilic addition(s) to the alkene and that involve carbocation rearrangement(s) are to be identified. Concept introduction: While drawing curved arrows the head of the curved arrow starts from the nucleophilic source (either negatively charged or neutral) and ends in an electrophilic sink (either positively charged or neutral). The formation of a new bond should lead to the breaking of a bond that already exists as the octet rule cannot be violated. In electrophilic addition reactions, the first step is the attack of the π electrons of the double bond on the hydrogen of another reactant to yield a carbocation. One of the carbon in C=C gets attached to hydrogen while the other acquires a positive charge. In the second step, the carbocation formed can rearrange to give another more stable carbocation either by a hydride shift (shift of hydrogen atom with its electron pair) or by an alkyl shift (shift of an alkyl group with its electron pair) between neighboring carbons. In the last step the carbocation produced reacts with a negatively charged ion or eliminates a proton to give the product. To show: The mechanism for each step in the pathway given for bio synthesizing epi -aristolochene using curved arrows. Further to identify the steps that involve electrophilicaddition(s) to the alkene and that involve carbocation rearrangement(s).
Solution Summary: The author explains the mechanism for each step in the pathway given for bio synthesizing epi -Aristolochene using curved arrows.
Definition Definition Organic compounds that contain at least one double bond between carbon-carbon atoms. The general molecular formula for alkenes with one double bond is C n H 2n .
Chapter 7.SE, Problem 33MP
Interpretation Introduction
Interpretation:
The mechanism for each step in the pathway given for bio synthesizing epi-Aristolochene is to be shown using curved arrows. Further the steps that involve electrophilic addition(s) to the alkene and that involve carbocation rearrangement(s) are to be identified.
Concept introduction:
While drawing curved arrows the head of the curved arrow starts from the nucleophilic source (either negatively charged or neutral) and ends in an electrophilic sink (either positively charged or neutral). The formation of a new bond should lead to the breaking of a bond that already exists as the octet rule cannot be violated.
In electrophilic addition reactions, the first step is the attack of the π electrons of the double bond on the hydrogen of another reactant to yield a carbocation. One of the carbon in C=C gets attached to hydrogen while the other acquires a positive charge. In the second step, the carbocation formed can rearrange to give another more stable carbocation either by a hydride shift (shift of hydrogen atom with its electron pair) or by an alkyl shift (shift of an alkyl group with its electron pair) between neighboring carbons. In the last step the carbocation produced reacts with a negatively charged ion or eliminates a proton to give the product.
To show:
The mechanism for each step in the pathway given for bio synthesizing epi-aristolochene using curved arrows. Further to identify the steps that involve electrophilicaddition(s) to the alkene and that involve carbocation rearrangement(s).
First image: Why can't the molecule C be formed in those conditions
Second image: Synthesis for lactone C
its not an exam
First image: I have to show the mecanism for the reaction on the left, where the alcohol A is added fast in one portion
Second image: I have to show the mecanism of the reaction at the bottom. Also I have to show by mecanism why the reaction wouldn't work if the alcohol was primary
First image: I have to explain why the molecule C is never formed in those conditions.
Second image: I have to propose a synthesis for the lactone A
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EBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT