Domanda del libro di testo
Show how you would convert propan-1-ol to the following compounds using tosylate intermediates. You may use whatever additional reagents are needed.
a. 1-bromopropane
b. propan-1-amine, CH3CH2CH2NH2
1401
views
Ch.11 - Reactions of Alcohols
Wade9th EditionOrganic ChemistryISBN: 9780135213728
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Structure and Bonding107
- Ch. 2 - Acids and Bases; Functional Groups115
- Ch.3 - Structure and Stereochemistry of Alkanes100
- Ch.4 - The Study of Chemical Reactions99
- Ch.5 - Stereochemistry93
- Ch.6 - Alkyl Halides; Nucleophilic Substitution118
- Ch. 7 - Structure and Synthesis of Alkenes; Elimination158
- Ch.8 - Reactions of Alkenes171
- Ch.9 - Alkynes91
- Ch.10 - Structure and Synthesis of Alcohols143
- Ch.11 - Reactions of Alcohols104
- Ch. 12 - Infrared Spectroscopy and Mass Spectrometry22
- Ch. 13 - Nuclear Magnetic Resonance Spectroscopy45
- Ch. 14 - Ethers, Epoxides, and Thioethers72
- Ch. 15 - Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy89
- Ch. 16 - Aromatic Compounds74
- Ch. 17 - Reactions of Aromatic Compounds126
- Ch. 18 - Ketones and Aldehydes193
- Ch. 19 - Amines129
- Ch. 20 - Carboxylic Acids77
- Ch. 21 - Carboxylic Acid Derivatives141
- Ch. 22 - Condensations and Alpha Substitutions of Carbonyl Compounds175
- Ch. 23 - Carbohydrates and Nucleic Acids93
- Ch. 24 - Amino Acids, Peptides, and Proteins54
Capitolo 11, Problema 7
A chronic alcoholic requires a much larger dose of ethanol as an antidote to methanol poisoning than does a nonalcoholic patient. Suggest a reason why a larger dose of the competitive inhibitor is required for an alcoholic.
Guida verificata passo dopo passo1
Understand the biochemical basis of methanol poisoning: Methanol is metabolized in the liver by the enzyme alcohol dehydrogenase (ADH) into toxic compounds such as formaldehyde and formic acid, which can cause severe acidosis and damage to the optic nerve.
Recognize the role of ethanol as a competitive inhibitor: Ethanol competes with methanol for binding to the active site of alcohol dehydrogenase. By saturating the enzyme with ethanol, the metabolism of methanol is slowed, reducing the production of toxic metabolites.
Consider the impact of chronic alcohol consumption on enzyme activity: Chronic alcoholics often have upregulated levels of alcohol dehydrogenase due to repeated exposure to ethanol. This means their liver enzymes are more active and present in higher quantities compared to nonalcoholics.
Relate enzyme activity to the required dose of ethanol: Since alcoholics have higher levels of alcohol dehydrogenase, a larger dose of ethanol is needed to effectively compete with methanol for the enzyme's active site and inhibit its metabolism.
Conclude the reasoning: The increased enzyme activity in chronic alcoholics necessitates a higher concentration of ethanol to achieve the same inhibitory effect on methanol metabolism as in nonalcoholic patients.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
4mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Competitive Inhibition
Competitive inhibition occurs when a substance, such as ethanol, competes with another substance (methanol) for binding to an enzyme (alcohol dehydrogenase). In this case, ethanol acts as a competitive inhibitor, preventing methanol from being metabolized into toxic formaldehyde. The effectiveness of the inhibitor depends on its concentration relative to the substrate, necessitating higher doses in certain conditions.
Video consigliato:
08:48
EAS with Polysubstituted Benzene
Enzyme Saturation
Enzyme saturation refers to the point at which all active sites of an enzyme are occupied by substrate molecules. In chronic alcoholics, the body may have adapted to higher levels of ethanol, leading to increased enzyme activity and potentially more active sites available for methanol. This adaptation means that a larger dose of ethanol is needed to effectively outcompete methanol for the enzyme's active sites.
Video consigliato:
01:02Is the following molecule saturated?
Metabolic Tolerance
Metabolic tolerance develops when the body becomes accustomed to the presence of a substance, such as ethanol, leading to physiological changes that affect drug metabolism. Chronic alcohol consumption can enhance the liver's ability to metabolize ethanol and other substances, requiring higher doses of ethanol to achieve the same competitive inhibition effect against methanol in alcoholics compared to nonalcoholics.
Video consigliato:
Percorso guidato
1:23Intro to Metabolism Concept 1
Pratica correlata
Domanda del libro di testo
Suggest the most appropriate method for each of the following laboratory syntheses. In each case, suggest both a chromium reagent and a chromium-free reagent.
(a) butan-1-ol → butanal, CH3CH2CH2CHO
(b) but-2-en-1-ol → but-2-enoic acid, CH3CH=CH–COOH
(c) butan-2-ol → butan-2-one, CH3COCH2CH3
1376
views
Domanda del libro di testo
Predict the major products of the following reactions.
(d) the tosylate of cyclohexylmethanol + excess NH3
(e) n-butyl tosylate + sodium acetylide, H–C≡C:– +Na
1360
views
Domanda del libro di testo
Suggest the most appropriate method for each of the following laboratory syntheses. In each case, suggest both a chromium reagent and a chromium-free reagent.
(f) 1-methylcyclohexanol → 2-methylcyclohexanone (several steps)
891
views
Domanda del libro di testo
Suggest the most appropriate method for each of the following laboratory syntheses. In each case, suggest both a chromium reagent and a chromium-free reagent.
(d) cyclopentanol → 1-ethylcyclopentanol (two steps)
(e) cyclopentylmethanol → 1-cyclopentylpropan-1-ol (two steps)
896
views
Domanda del libro di testo
Predict the major products of the following reactions.
(a) ethyl tosylate + potassium tert-butoxide
(b) isobutyl tosylate + NaI
(c) (R)-2-hexyl tosylate + NaCN
2426
views