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Predict the products and mechanisms of the following reactions. When more than one
Chapter 7, Problem PROBLEM 7-33(choose chapter or problem)
Predict the products and mechanisms of the following reactions. When more than one product or mechanism is possible, explain which are most likely. (a) 1@bromohexane + sodium ethoxide in ethanol (b) 2@chlorohexane + NaOCH3 in methanol (c) 2-chloro-2-methylbutane + NaOCH2CH3 in ethanol (d) 2-chloro-2-methylbutane heated in ethanol (e) isobutyl iodide + KOH in ethanol>water (f) isobutyl chloride + AgNO3 in ethanol>water (g) 1@bromo@1@methylcyclopentane + NaOEt in ethanol (h) 1-bromo-1-methylcyclopentane heated in methanol
Questions & Answers
QUESTION:
Predict the products and mechanisms of the following reactions. When more than one product or mechanism is possible, explain which are most likely. (a) 1@bromohexane + sodium ethoxide in ethanol (b) 2@chlorohexane + NaOCH3 in methanol (c) 2-chloro-2-methylbutane + NaOCH2CH3 in ethanol (d) 2-chloro-2-methylbutane heated in ethanol (e) isobutyl iodide + KOH in ethanol>water (f) isobutyl chloride + AgNO3 in ethanol>water (g) 1@bromo@1@methylcyclopentane + NaOEt in ethanol (h) 1-bromo-1-methylcyclopentane heated in methanol
ANSWER:Step 1 of 9
Nucleophilic substitution reactions
Substitution reactions in which the attacking species is a nucleophile are called nucleophilic substitution reactions. A nucleophilic substitution reaction can be unimolecular or bimolecular. Bimolecular reactions occur in a single step and are called reactions, while unimolecular reactions occur in two steps and are called reactions. The mechanism for the substitution is decided by the structure of the substrate and the attacking nucleophile. Primary substrates undergo reactions due to low steric hindrance, and tertiary substrates undergo reactions due to stability of tertiary carbocation.
Elimination reactions
Elimination reactions are reactions in which a leaving group and a proton are removed from the substrate forming an alkene. Elimination reactions can be unimolecular or bimolecular. Unimolecular reactions occur by two steps, namely ionization, and deprotonation and are called reactions, while bimolecular reactions occur in a single step and are called reactions. Similar to substitution, tertiary groups favor reactions, and primary groups favor reactions.