Quiz_3-1 - Chem 267 Quiz 3 1 1) What reagents are typically...

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Unformatted text preview: Chem 267 Quiz 3 1 1) What reagents are typically required to accomplish bromination of an aromatic ring? 1) Br2 +HBr 2) Br2 + heat 3) Br2 + H2SO4 4) Br2 + AlBr 3 A) 1 2) B) 2 C) 3 D) 4 Which of the following resonance structure(s) is/are involved in an electrophilic aromatic bromination? Br H Br Br H Br Br H H 1) 2) H 3) H 4) H 5) A) 5 3) B) 2 and 4 C) 1 and 3 D) 2, 3, and 5 E) 1, 2, 3, and 5 Which electrophilic aromatic substitution reactions are reversible? A) Halogenation D) Sulfonation B) Acylation E) Alkylation C) Nitration 4) What is the product of the following reaction? A) B) C) D) E) 1 2 3 4 5 NH 2 H 2SO 4 HNO 3 1) 2) 3) 4) 5) NO 2 NO2 H SO3 H SO2 H 5) Which of the following reactions of benzene usually produces polysubstituted products? A) D) Halogenation Sulfonation B) Acylation E) Alkylation C) Nitration 6) What is the major product of the following reaction? Cl HCl + AlCl3 1) 2) 3) 4) 5) Cl A) 1 B) 2 C) 3 D) 4 E) 5 Chem 267 Quiz 3 O O O + OH O 1) SOCl2 2) AlCl3 4) H 2 O 3) H 2 , Pd EtOH 1) 2) 5) O O O O 2 7) What is the major product of the following reaction? A) 1 B) 2 C) 3 D) 4 E) 5 3) 4) 8) What is the major mono-substituted product formed when the following compound is nitrated? O CCH3 HNO3 H2SO4 O CCH3 NO 2 O CCH3 NH2 H 2N O A) O O B) O O C) O O D) NO2 O O E) NH3 O O CCH3 O CCH3 O CCH 3 meta o, p O O 9) What is the final product formed in the following set of reactions? OCOCH3 + OCOCH3 SO3H conc. H2SO4 ? dilute H2SO4/ H2O heat OH ? OH OCOCH3 OCOCH3 A) B) SO3H C) D) E) 10 Each of the five disubstituted benzenes is nitrated. In which of theses cases does the arrow not indicate the chief position of nitration? OH COOH NHCOCH3 COH CH3 NO2 Cl 1) 2) CH3 3) CH3 4) OH 5) A) 1 B) 2 C) 3 D) 4 E) 5 ...
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This note was uploaded on 09/15/2010 for the course SCIENCE 267 taught by Professor Sjdifoa during the Winter '09 term at University of Warsaw.

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