1. Which of the following anions is the best leaving group? A. NH2 B. CI C. CH3 D. OH FH-
Multiple Choice: Fill in circle on Scantron sheet with pencil. 1. Which of the following anions is the best leaving group? A. NH2 B. CI C. CH3 D. OH E.H 2. Which of the following statements is (are) true about an SN2 reaction? A. The reaction is fastest with 1° halides. B. The reaction follows second-order kinetics. C. Changing the identity of the leaving group changes the rate of the reaction. D. Statements (The reaction is fastest with 1° halides)...
32. Which of the following compounds has the best leaving group? Briefly explain (4pts) N(CH3)3 ~ N(CH3)2 III. They both have the same leaving group ability
Which species would best act as a Lewis acid? a) BFa c) CH2CI OH O d) H3C CI b) . Identify the strongest acid. OH OH N c) a) OH OH d) NH2 b) Identify the strongest base. N a) c) NH2 b) d)
Which species would best act as a Lewis acid? a) BFa c) CH2CI OH O d) H3C CI b) . Identify the strongest acid. OH OH N c) a) OH OH d) NH2 b)
Identify the...
Which of the labeled groups in compound A is the best leaving group? Which of the labeled groups is the worst leaving group? HNYÖ :OH Which option correctly ranks the marked groups from best to worst leaving group? 0 O –OH,*>—OH——NH, -NH, >-OH-OH, -OH, >-NH, > -OH -OH >–NH, >-OH -OH -OH2>-NH,
b-(CH3)2CHCO3 + CH3CH2CH, OH C-(CH3)2CHCO-180 + CH3CH2CH2OH d- (CH3)-CH-CHO + CHACHACH OH 6. Which of the following compounds is the most reactive with aqueous base? OCH CH "NH2 7. In a proton NMR, an acid will show a signal at about a-58 b.78
which is the strongest base AND why
CH3-CH-C-OH NH2 2. Which is the strongest base? NH2 ( B NH2 O2N NH2 NO2
Rank the following set of compounds in order of increasing
leaving group abililty in an addition and elimination mechanism
(poorest leaving group at the left, best leaving group to the
right).
leaving group ability in an addition and Rank the following set of compounds in order of i elimination mechanism (poorest leaving group at the left, best leaving group to the right). NH2 OCH3 CI Best leaving group Poorest leaving group
Determine whether the following compounds have or lack a good leaving group for substitution and elimination reactions. Has good leaving group Lacks good leaving group R-Br R-OH R-NH2 R-OMe R-CN R-CI R-OH R-OTS
please help!
1) Which of the following compounds is chiral? CH3-1-ci CH3-1-ci Br -1-ci CH3 CH3-1-Br CH3-1-ci CH3 3-1-C CH3 CH3 ci--c1 Br--Br CH3 2) What is the relationship between the structures shown below? H-|-Brand Br- -CH3 CH3 o Constitutional isomers Identical compounds O Diastereomers O Enantiomers O Configurational isomers 4) What is the product of the following reaction? MoBr 2. Fich, o V. HOCHẶCHỌCH-O V. II. CH CHCH-(O) OH CH2OH ON CH3CH II. HOCH2CH2– O III oll ON 01...
Consider the following molecules: b. а. CHS CH3 O NH— CH—CH2—ОН NH2-CH-C-OH CHз d. C. CHз о Но-СН—С—ОН НО—С—С—С—ОН CH3 [Select ] i. Which of the molecules above is a secondary amine? ii. Which of the molecules above will be a zwitterion under physiological conditions (pH 7)? (Select) [Select ] ii. Which of the molecules above has two acidic protons?