Concept explainers
(a)
Interpretation: The products for the given reaction have to be found.
Concept Introduction:
Ketals:
Ketals are used to protect the carbonyl group of the
In the following example, the carbonyl group of the acetone has been protected as ketal by using ethylene glycol.
Example:
In acidic condition, a ketone reacts with two molecules of alcohol or a molecule of
General scheme:
(b)
Interpretation: The products for the given reaction have to be found.
Concept Introduction:
Acetals:
Acetals are used to protect the carbonyl group of the
In the following example, the carbonyl group of the acetaldehyde has been protected as acetal by using ethylene glycol.
In acidic condition, an aldehyde reacts with two molecules of alcohol or a molecule of diol to form acetal or cyclic acetal respectively.
General scheme:
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Essential Organic Chemistry, Global Edition
- Show how to prepare each compound from 2-methyl- 1- propanol. a. 2- methylpropene b. 2- methyl- 2- propanol c. 2- methylpropanoic acid (CH3)2CHCOOHarrow_forward2. Provide the missing product or starting materials for the following reactions. a. b. C. 1. LDA 2. Xh H 3. H3O+ NaOH heat NaOH OHarrow_forwardGive the products formed when benzaldehyde and benzoic acid are treated with the given reagents. a. Tollen’s reagentb. phenylhydrazine, H+c. HCNd. NH2OHe. 1 mole H2, Nif. 1 mole CH3OH, H+g. LiAlH4 then H2O, H+h. 2 moles CH3OH, H+i. CH3MgCl, then H2O, H+j. H2Oarrow_forward
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- 2-Methyl-2-butene reacts with HBr in the presence of peroxide to give a. a secondary alkyl bromide. b. a primary alkyl bromide. c. a tertiary alkyl bromide. d. a vicinal dibromide.arrow_forward1. An alkene reacts with water with an acid catalyst results into a formation of: A. Aldehyde B. Ketone C. Alcohol D. Ester 2. 3-Methylhexanal with K2Cr2O7 will yield: A. 3-Methyl-1-hexanol B. 3-Methylhexanoic acid C. 3-Methyl-1-hexanone D. 3-Methyl-1-hexanethiol 3. This is a reverse process of Hydration reaction: A. Oxidation reaction B. Reduction reaction C. Dehydration reaction D. Hydration reaction 4. Acetic acid reacts with a strong base forms: A. Salt B. Water C. Salt and Water D. No reaction 5. Ketones can be further oxidized with benedict's solution into: A. Alcohol B. Aldehyde C. Catalysts D. No reactionarrow_forwardWhat is the major organic product obtained from the following reaction? A. B. OH OH 1.2 moles 2. H3O* C. MgBr هذه معه OHarrow_forward
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