All the synthetic routes are given below
b. Prepare 2-nitrophenol from benzene (1.5 points) C. Prepare 4-(1-bromopropyl)-3-iodobenzenesulfonic acid from propylbenzene (2 points) several...
10. How can p-aminobenzoic acid (a sunscreen) be synthesized from benzene? (Note that sometimes more than one isomer will be obtained, which is fine as long as the desired isomer is one of the major products.) several steps HOOC NH2 A)) 1.CH3CI, AİCİ3 3.KMnO4 . CH CI, AICl 4.KMnO 4. Sn, HCI 2. IINO, H2SO4 )1. HNO3, H2SO4 2. Sn, HCI C) 1. HNO, HSO42. CHCI, AIC D) 1. CHCl, AlCl KMO 4.KMnO 4. Sn, HCI 3. Sn, HCI 3....
3. Draw the structural formulas for the following compounds. (10 points, 2 each) a. 2-propanol b. 2-methyl-5-hexene-2-ol c. 3-cyclohexenol d. 4-nitrophenol e. phenol 4. Classify the following substituents as ortho/para or meta directing and activating or deactivating (two part answer for each group) (note the line 34 indicates where the group is attached to the benzene ring. (12points, 2 each) NH2 Ooh &r HC-CH₃ No? QH
Biochemistry
4. The ionization of p-nitrophenol is shown below (pKa = 7.0): NO2 он weak acid conjugate base a. (4 points) Identify the weak acid and conjugate base. b. (4 points)At pH 7, what are the relative concentrations of ionized and un-ionized p- nitrophenol? c. (4 points)If enough concentrated hydrochloric acid is added to a solution of p-nitrophenol to lower the pH from 7 to 5, what will happen to the relative concentrations of the ionized and un-ionized forms? d....
starting from benzene as a substrate receive the following
compounds: (9 points)
(b) (c) CH3 CI NH2 OCH NH2
2.4 Predict the product…
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2.5 Predict the product of this reaction…
Propylbenzene
Benzene
Ethylbenzene
Benzenesulfonic acid
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3.1 What is the absolute configuration around C-2 and C-3?
S, R
R, S
R, R
S, S
E, Z
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3.2 How many stereogenic carbons are in the following
molecule?
0, 1, 2, 3, or 4
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3.3 What is the order of priority for the groups attached to the
stereogenic center?
propyl > OH > ethyl > H
Ethyl >...
Provide a skeletal line structure for the following compounds: a. 2-ethyl-3-methyl-1-propylbenzene b. Trans-4-methylpent-2-ene c. 2,4-dimethyl-3-ethylhexane
1.
2.
3.
Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D below each structure. The pKa's for the acids of interest are: benzene (pK. 43), and ammonia (pKa -36). -D ids of ines are benzene iok i NH2 NH3+ amide benzene ammonia bzene anion a) The stronger acid is b) Its conjugate base is c) The species that predominate at equilibrium are (two letters, e.g. ac)
Which of the following is a conjugated diene 2-methylcyclohexanone cyclohexa-1, 3-diene 1-methylcyclohexa-1, 4-diene cyclohexa-1, 4-diene cycloocta-1, 5-diene The aromatic compound is: Which of the following reaction involves a benzyne mechanism? Ph-CH_3 rightarrow Ph-COOH Ph-Br rightarrow Ph-NH_2 Ph-OH rightarrow Ph-Cl Ph-CH_3 rightarrow Ph-CH_2Br none of these The benzene has ....pi bonds 1 2 3 4 6 The reagent used for a allylic bromination is: Br_2/FeBr_3 Br_2/Fe Br_2/AlBr_3 NBS Br_2/HBr The major product in the reaction of benzene with 1-chloropropane, in the...
6) How many signals does the IH NMR spectrum of 4-methyl-1-propylbenzene have? A) 4 B) 5 C)6 D) E) 6) 7) - 7) What is the main intramolecular force between two molecules of propanoic acid? A) London dispersion forces B) hydrogen bonding C) dipole-dipole interaction D) induced dipole interactions E) none of the above 8) The best leaving group is a A) weak acid. B) strong base C) strong acid. D) weak base. E) none of the above. 9) 9)...
30 Design a synthesis of m-bromostyrene from benzene. points Br Part 1 out of 12 Choose the best option for the immediate precursor to the target molecule. Br points НО 23 Design a synthesis of p-t-butylacetophenone from benzene. points Choose the best option for the immediate precursor to the target molecule. Part 2 out of 6 Choose the best option for the precursor to t-butylbenzene. 2 points NH2 OH 23 points NH2 он