b-(CH3)2CHCO3 + CH3CH2CH, OH C-(CH3)2CHCO-180 + CH3CH2CH2OH d- (CH3)-CH-CHO + CHACHACH OH 6. Which of the...
Which of the following can exist in enantiomers? a. b. CH3 CH3-CH;-CH2-C-CH; CH3-CH2-CEC-CH, C. d. all of these choices CH3-CH-C-CHE -8-сон, CH,-8-3-CH, спесне: -он, 10. What type of compound is the second product in the reaction shown below? CH-0-2-CH, OCH & CHOCH, H,CH, +3 NaOH + CH-OH + CH-OH CH -0-C-(CH2)16CH, a, fatty acid salt b. ester CH-OH c. alcohol d. fatty acid
which is the strongest base AND why CH3-CH-C-OH NH2 2. Which is the strongest base? NH2 ( B NH2 O2N NH2 NO2
1. Which of the compounds listed below would you expect to have the highest boiling point? They all have approximately the same molecular weight.) a. CH CH CH CH CH b. CH3CH CH C2OH d. Cl,CH:CH,CI 2. How many 'H NMR signals would you expect from this compound? d.4 3. Arrange these compounds in order of reactivity for a nucleophilic substitution reaction using CH3O in CH:OH. List the most reactive compound first. a. 3 2> 1 d. 21 3 b....
HO A) -CH OH PCC, excess CH2Cl2 B) 1) O 2) (CH3), 15) Rank the following compounds in the decreasing order of reactivity towards nucleophilic addition reaction? 3 Pt ! H Most Reactive: Least Reactive 16) Write the reagents for the following transformations? 6 Pt مر 8 B) 0 OH C)
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?
Which term is associated with 13 C-NMR? A) multiplicity B) wave number C) fragment D) Radio frequency Synthesis of Compound (1) using the Wittig reaction was carried out with CH3CH2Br and which compound as starting materials? CH3CH,Br 1.P(Ph)3 2. base ?? Compound (1) (A ) What is the nucleophile in the acid catalyzed cleavage of the acetal shown? Aqueous acid A) OH B) H307 С) но он D) H,0 What is the multiplicity (splitting) of the most deshielded signal of...
4. Write down the conjugate: A. Acid of R-NH2 B. Base of R-OH C. Base of HC=CH D. Acid of H20
draw fisher projections for both the D and L isomers of the following 12 Identify each of the following as a D or an L form and draw the structural formula of the enantiomer: CHO b. a. CH,OH C=O он HOH HOH но CH,OH CH,OH 3 Draw Fischer projections for both the D and L isomers of the following a. 2,3-dihydroxypropanoic acid b. 2-chloro-3-hydroxypropanoic acid Draw Fischer projections for both the D and L somers of the following amino acids:...
b) CH, CH2 CH CH Br + SH — CHZ CH3 CH, CH, CH, Br + SH" — c) (polar protic solvents) CH, Br + (CH3)3N CH, Br + (CH3)3P - — d) CH, I + CN- - DMF CHZI + CNC CH3CH20H e) CH I + OH- - CHZI + CH, CO2- (6) 14. Place 1º, 2º, 3º and Methyl carbocations in order from least stable to most stable. What factor(s) account for the stability of the most stable...
HO CH сн. CH2 нс HC CH3 HAC-HC CH CH CH CH d) OH OH 13. The labels have fallen off three bottles. Bottle A contains a gas, bottle B contains a liquid, and bottle C contains a solid. The labels indicate that the compounds have the same number of carbon atoms, one being an alkane, one an alcohol, and the other a carboxylic acid. Suggest the identity of the contents of each bottle, and give reasons for your explanation...