Concept explainers
Interpretation:
A structure for the alcohol with molecular formula C9H12O and the following spectral data is to be proposed.
1HNMR: 0.88 δ (triplet,Rel.area=3.00); 1.80 δ (quintet, Rel.area=2.00); 2.32 δ (Rel.area=1.00); 4.54 δ (triplet, Rel.area=1.00); 7.24 δ (Rel.area=5.00).
Concept introduction:
In 1HNMR spectrum, the alcoholic proton absorption occurs in the range 3.4 δ - 4.5 δ while that of phenolic proton occur in the range 3.0 to 8.0. The
The absorption due to 10 alkyl group (CH3) is seen around 0.7 δ - 1.3 δ, that due to a 20 alkyl group (CH2) is seen around 1.2 δ - 1.6 δ while that due to 30 alkyl group (CH) is seen around 1.4 δ - 1.8 δ The multiplicity of a signal gives an idea about the protons present in the adjacent carbons.
To propose:
A structure for the alcohol with molecular formula C9H12O and the following spectral data is to be proposed.
1HNMR: 0.88 δ (triplet,Rel.area=3.00); 1.80 δ (quintet, Rel.area=2.00); 2.32 δ (Rel.area=1.00); 4.54 δ (triplet, Rel.area=1.00); 7.24 δ (Rel.area=5.00).
b)
C8H10O2
Interpretation:
A structure for the alcohol with molecular formula C8H10O2 and the following spectral data is to be proposed.
IR: 3500 cm-1,
1HNMR: 2.60 δ (Rel.area=1.00); 3.76 δ (Rel.area=3.00); 4.53 δ (Rel.area=2.00); 6.85 δ (Rel.area=2.00); 7.23 δ (Rel.area=2.00).
Concept introduction:
In 1HNMR spectrum, the alcoholic proton absorption occurs in the range 3.4 δ - 4.5 δ while that of phenolic proton occur in the range 3.0 to 8.0. The aromatic protons give a broad peak in the range 6.5 δ - 8.0 δ, the benzylic protons normally absorb in the region 2.3 δ - 3.0 δ.
To propose:
A structure for the alcohol with molecular formula C8H10O2 and the following spectral data is to be proposed.
1HNMR: 2.60 δ (Rel.area=1.00); 3.76 δ (Rel.area=3.00); 4.53 δ (Rel.area=2.00); 6.85 δ (Rel.area=2.00); 7.23 δ (Rel.area=2.00).
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Chapter 17 Solutions
EP ORGANIC CHEMISTRY,24 MONTH-OWLV2
- Can you explain how I get these here and show the steps plz?arrow_forwardGive the IUPAC name for this compound Hydrocarbon Condensed Formulas Hint C2H5 CH2CH3 expand that in all the formula Part A: (CH3)2CHCH(C2H5)CH2CH2CH3 Give the IUPAC name for this compound. Part B: CH2=C(C2H5)CH2CH2CH3 Give the IUPAC name for this compound. Part C: (CH3)2C=CHC(C2H5)=CH2 Give the IUPAC name for this compound. Part D: CH3C=CCH(C2H5)2 Give the IUPAC name for this compound. Part E: (CH3)3CC=CCH2CH=C(CH3)2arrow_forwardSelect/ Match the correct letter from the image below for the IUPAC names given below: A B C D 3 E F G H K L Part 1. 4-methylheptane For example.mmmm Answer Letter H _for part 1 Part 2. 2,4-dimethylhexane Part 3. 2,3-dimethylpentane Part 4. 2,2-dimethylhexane Part 5. 2-ethyl-1,1,3,3-tetramethylcyclopentane Part 6. 3-ethyl-2-methylpentanearrow_forward
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- Jaslev Propose a synthesis of the following starting from benzene and any other reagents and chemicals. No mechanisms are required. Indicate the condition for each step plus the major product for each step. More than two steps are required. Step 1 Step 2 مہد Brarrow_forwardPart C: The line formula for another branched alkane is shown below. i. In the IUPAC system what is the root or base name of this compound? ii. How many alkyl substituents are attached to the longest chain? iii. Give the IUPAC name for this compound.arrow_forwardPart D: Draw the Structural Formula for 4-ethyl-2-methylhexane Part E. Draw the Structural Formula for 1-chloro-3,3-diethylpentane (Chloro = Cl)arrow_forward
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning