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Unformatted text preview: H2C i C ii CH2 ii i H2 C CH2 H Br Which of the following terms describes the reactivity of trimethylamine, (CH3)3N?
a. Brønsted-Lowry acid and Lewis acid b. Brønsted-Lowry base and Lewis base c. Brønsted-Lowry acid and not a Lewis acid d. Brønsted-Lowry base and not a Lewis base ANS: b W hat is the IUPAC name of the following compound? a. (E)-3-methyl-4-hexene b. (Z)-3-methyl-4-hexene c. (Z)-4-methyl-2-hexene d.) (E)-4-methyl-2-hexene ANS: d W hat is the value of the equilibrium constant, Keq, for the following reaction?
K eq HC CH + NH2 HC C + NH3 pK a = 38 pK a = 25 a. 1013 b. 10-13 c. 13 d. 1/13 ANS: a What is the smallest trans cycloalkene that is stable at room temperature?
a. (E) cyclohexene b. (E) cycloheptene c. (E) cyclooctene d. (E) cyclodecene ANS: c What type of reactive intermediate is formed in the reaction of an alkene with Br2 and
water to give a bromohydrin? a. carbocation b. carbanion c. Lewis acid/Lewis base pair d. radical e. cyclic bromonium ion ANS: e H 1 I 2 H I H 3 I 4 H I O OH 1 2 3 4 1. OsO4 2. NaHSO3 H 2O What is the product of the following reaction, and what type of mixture will be made? a. I, racemic b. II, racemic c. I, one enantiomer only d. II, one enantiomer only e. no reaction ANS: c ANS: b Keq H2O pK a = 16 + HC C HC CH pK a = 25 + OH 1 2 3 4 σ σ H H3C H H3C H Br H3C Br CH 3 Lewis Base Lewis Acid β βπ DOUs: ____13_______ Rings: ____2_________ π-Bonds: ___11_______ Acid catalyst formation: O O S HO O H OH2 H H2O HSO4- H-OH2 active acid OH OH ∗ O H H2O O H-OH2 active acid regenerated α α H3C CH3 CH3
( S)-α-Phellandrene ...
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This note was uploaded on 03/20/2011 for the course CHEMISTRY 310m taught by Professor Iverson during the Fall '08 term at University of Texas.
- Fall '08
- Organic chemistry