Which signal in the following proton NMR is due to an alcohol proton?
1
2
4
3
Which represents the nucleophile in this reaction?
A
The stereochemical configuration at C3 (one answer to be given only)
R
What is the electrophile in this reaction
C
A
doesn't apply
B
Which reaction would be faster and WHY
−SH is a better nucleophile than −OH because nucleophilicity usually increases in going down a column of the periodic table and sulfur is below oxygen in group
What is the molecular formula of this natural product?
C13H10
This is an example of:
SN1 process
SN2 process
E2 process
E1 process
The hybridization of the nitrogen atom
sp3
Name this
2-propoxybutane
The stereochemical configuration of the C4-C5 alkene is
Z
What would be the product of ethenylcyclohexane (shown here) and HBr (name or draw)
(1-bromoethyl)cyclohexane
How many peaks would appear in the 13CNMR for the following compound? Atoms other than carbon and hydrogen are labeled.
9
7
6
8
Name the product
cyclopentene
Are these: conformational isomers, stereoisomers, constitutional isomers OR identical
stereoisomers
WhWhich of the peak in the IR spectrum shown is due to the C—O stretch in an alcohol?
3
Name the product
5-bromopentan-2-ol
This is the amino acid valine. Is it chiral? Explain
yes, the carbon where NH2 is.
Are these: conformational isomers, stereoisomers, constitutional isomers OR identical
identical
Consider the acidity constants below to answer the following question. Which acid will be almost completely deprotonated by NaOH?
phenol
What type of reaction is this?
addition/hydration
What's the best reagent?
1) NaBH4, ethanol 2) acid treatment
CrO3, acetone, H2O
1) LiAlH4, ether 2) acid treatment
1) CH3MgBr, ether 2) acid treatment
What is the major product when 1-methylcyclohex-1-ene is reacted with hydrogen iodide
1-iodo-1-methylcyclohexane
What is the major functional group shown here?
Primary amine
Which of these compounds would you expect to be water soluble?
propanoic acid and naproxen
Name the 2 products
iodoethane and butan-2-ol