(a)(b)(c)Suggest a synthesis of the following alkene (A) using a Wittig reaction strategy. Drawthe starting material(s), key reagent and a full reaction mechanism including anexplanation of the observed geometry.Which of the following (B) and (C) will favour the enol form? Briefly explain yourreasoning.Predict the product(s) and provide a mechanism for each of the followingtransformations:(i)(ii)OMeOMeBaseOEtNaOEt

The aim of this question is to show the enol formation between b and c molecule. The enol form by…

Answered: (b) (c) Which of the following (B) and…

(b) (c) Which of the following (B) and (C) will favour the enol form? Briefly explain your reasoning. Predict the product(s) and provide a mechanism for each of the following transformations:

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Aromatic Compounds

Aromatic organic compound or aromatic system is an important class of hydrocarbons under the branch of organic chemistry. Aromatic compounds are also called arenas. The definition of aromatic organic compounds can be stated as a class of organic compounds with a planar cyclic ring of atoms bonded through alternated single and double bonds. Due to these alternating bonds, a peculiar feature termed as ‘resonance’, that is, delocalization of pi electrons or the electrons is shared within the atoms of the ring which are present in the aromatic compounds. The word ‘aromatic’ includes a Greek word ‘aroma’ which means smell, indicating that they were named as such due to the sweet odor they produce. Many well-known flavors such as vanilla, cinnamon, and few scents from flowers are extracted from aromatic compounds. Benzene with chemical formula C6H6 is a very common aromatic compound that contains six atoms of carbon held in the cyclic ring of alternate double bonds. It is also to be noted that not all aromatic compounds contain benzene ring. This can be explained by Huckel’s rule.

Question

(a)
(b)
(c)
Suggest a synthesis of the following alkene (A) using a Wittig reaction strategy. Draw
the starting material(s), key reagent and a full reaction mechanism including an
explanation of the observed geometry.
Which of the following (B) and (C) will favour the enol form? Briefly explain your
reasoning.
Predict the product(s) and provide a mechanism for each of the following
transformations:
(i)
(ii)
OMe
OMe
Base
OEt
NaOEt

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Step 2: Enol formation

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Step 3: Cyclopentanone Enol

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Step 4: 2-methylcyclopentanone Enol

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