a)(Z)-2-Ethyl-2-buten-1-ol
Interpretation:
To draw the structure of (Z)-2-ethyl-2-buten-1-ol.
Concept introduction:
The longest continuous carbon chain which contains the hydroxyl group and any other
E-Z notation is used to represent the arrangement of different groups around the double bond. Applying the sequence rules the groups attached to the double bond are ranked as either higher or lower. If the groups of similar ranking on each carbon are arranged on the same side of the double bond then Z configuration is assigned. If the groups of similar rankings on each carbon are arranged on the opposite sides of the double bond then E configuration is assigned.
To draw:
The structure of (Z)-2-ethyl-2-buten-1-ol.
b)3-Cyclohexene-1-ol
Interpretation:
To draw the structure of 3-cyclohexene-1-ol.
Concept introduction:
In naming cyclic alcohols the parent name is derived from the cycloalkene ring by replacing –e of the cycloalkene with –ol. The ring is numbered from the carbon with –OH in such a way that lowest number possible is given to the carbons in the double bond.
To draw:
The structure of 3-cyclohexene-1-ol.
c) trans-3-Chlorocycloheptanol
Interpretation:
To draw the structure of trans-3-chlorocycloheptanol.
Concept introduction:
In naming cyclic alcohols the parent name is derived from the cycloalkene ring by replacing –e of the cycloalkene with –ol. The ring is numbered from the carbon with –OH in such a way that lowest number possible is given to the carbons in the double bond.
To draw:
The structure of trans-3-chlorocycloheptanol.
d) 1, 4-Pentanediol
Interpretation:
To draw the structure of 1, 4-pentanediol.
Concept introduction:
Alcohols are named as derivatives of the parent
To draw:
The structure of 1, 4-pentanediol.
e) 2, 6-Dimethylphenol
Interpretation:
To draw the structure of 2, 6-dimethylphenol.
Concept introduction:
Hydroxybenzenes are named as derivatives of phenol. If the ring contains other substituents also, the ring is numbered from the carbon with –OH in such a way that lowest number possible is given to the carbon with the substituent. While writing the name the substituents are arranged in the alphabetical order.
To draw:
The structure of 2, 6-dimethylphenol.
f) o-(2-hydroxyethyl) phenol.
Interpretation:
To draw the structure of o-(2-hydroxyethyl) phenol.
Concept introduction:
Hydroxybenzenes are named as derivatives of phenol. If the ring contains other substituent also the ring is numbered from the carbon with –OH in such a way that lowest number possible is given to the carbon with the substituent. While writing the name the substituents are arranged in the alphabetical order.
To draw:
The structure of o-(2-hydroxyethyl) phenol.
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Chapter 17 Solutions
Organic Chemistry
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- Draw the structure of the following compounds which parent names have been traced to a common name; (a)5-methyl-4-nitroimidazole (b)2-chloro-4-methoxythiazole.arrow_forwardPredict which member of each group is most soluble in water, and explain the reasons for your predictions.(a) butan-1-ol, pentan-1-ol, or propan-2-ol(b) chlorocyclohexane, cyclohexanol, or cyclohexane-1,2-diol(c) phenol, cyclohexanol, or 4-methylcyclohexanolarrow_forwardDraw structures (these may be either skeletal or displayed formulae) for the followingmolecules: (a) 2-methylbutanal(b) 1,6-diaminohexane(c) 1,1,2-trichloroethane(d) 2-methylcyclopentanone(e) but-2-ene-1-olarrow_forward
- 1.Name and draw the products of each reaction. (a) 1-propanol + hydrobromic acid → HSO (b) 1-pentanol A HSO (c) N-propylmethanamide + water (d) 3-methyl oct-2-ene + hydrochloric acid - (e) 2-fluoro-2-phenyl butanoic acid + ethanolarrow_forwardThe IUPAC name of the compound H- is (a) 5-formylhex-2-en-3-one (b) 5-methyl-4-oxohex-2-en-5-al (c) 3-keto-2-methylhex-5-enal (d) 3-keto-2-methylhex-4-enal ( The correct statement regarding electrophile is (a) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from another electrophile (b) electrophiles are generally neutral species and can form a bond by accepting a pair of electrons from a nucleophile (c) electrophile can be either neutral or ar positively charged species and can form a bond by accepting a pair of electrons from a nucleophile (d) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from a nucleophile.. Which among the given molecules can exhibit tautomerism? Ph Ph I II III (a) III only (c) Both I and II (b) Both I and III (d) Both II and III 1) Which of the following biphenyls is optically active?arrow_forwardThe IUPAC name of the compound is (a) 5-formylhex-2-en-3-one (b) 5-methyl-4-oxohex-2-en-5-al (c) 3-keto-2-methylhex-5-enal (d) 3-keto-2-methylhex-4-enal The correct statement regarding electrophile is (a) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from another electrophile (b) electrophiles are generally neutral species and can form a bond by accepting a pair of electrons from a nucleophile (c) electrophile can be either neutral or positively charged species and can form a bond by accepting a pair of electrons from a nucleophile (d) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from a nucleophile, Which among the given molecules can exhibit tautomerism? Ph Ph I III (a) III only (b) Both I and III (d) Both II and III (c) Both I and II 5) Which of the following biphenyls is optically active? IIarrow_forward
- (ii) Name the following using IUPAC system of nomenclature: (a) CH2 (Cl) CH (NH2) CHO (b) CH3 C (Br) CH2 CH (F) COOH Brarrow_forward4 But-2-enal, CH₂CH=CHCHO, is a pale yellow, flammable liquid with an irritating odour. (a) But-2-enal exists as two stereoisomers. Draw skeletal formulae to show the structure of the two stereoisomers of but-2-enal. (b) (i) Describe a simple chemical test that would show that but-2-enal is an aldehyde. (ii) Explain why this test gives a different result with aldehydes than it does with keton (c) But-2-enal also reacts with sodium borohydride, NaBH4. (i) Identify the organic compound formed in this reaction. (ii) State the type of chemical reaction occurring. (d) Precautions must be taken to prevent but-2-enal catching fire. Construct a balanced equation for the complete combustion of but-2-enal, C₂HO.arrow_forwardName the following using IUPAC system of nomenclature: (a) CH2 (Cl) CH (NH2) CHO (b) CH3 C (Br) CH2 CH (F) COOH Brarrow_forward
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