Nomenclature-Solution-for-WEB
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<strong>Solution</strong> of <strong>Nomenclature</strong><br />
Hydrocarbon<br />
1 2,2,4-Trimethylpentane<br />
2 3-Ethyl-2-methylpentane<br />
3 3,3-Dimethylbutene<br />
4 2-Methylbuta-1,3-diene<br />
5 2-Ethyl-3-methylbuta-1,3-diene<br />
6 Hex – 1 – ene – 4 – yne<br />
7 3-Methylbutyne<br />
8 2,2,4,4-Tetramethylpentane<br />
9 2,2 – Dimethylpropane<br />
10 3,3-Diethylpentane<br />
11 But-1-en-3-yne<br />
12 Hex-4-enyne<br />
13 Hex-1-en-4-yne<br />
14 Penta-2,3-diene<br />
15 2-Methylbuta-1,3-diene<br />
16 2 – Methylpenta – 1, 4 – diene<br />
17 3-Methylhepta-1,3,5-triene<br />
18 3-Methylhexa1,5-diyne<br />
Hydrocarbon Branch in<br />
Branch<br />
1 2, 3, 5 – Trimethyl – 4 - propylheptane<br />
2 5–(1, 1–Dimethylpropyl)–5–(2–methyl–<br />
propyl)nonane<br />
3 4-Ethyl-3,5,6-trimethyloctane<br />
4 2,3-Dimethyl-4-propyloctane<br />
5 4-(1,2-Dimethyl)-3-ethyl-4,7-dimethyldecane<br />
6 4,4-bis-(1-Methylethyl)heptane<br />
7 3-(1,1-Dimethylethyl)-7-(2-methylpropyl)decane<br />
8 3, 7 – Diethyl – 2, 2 – dimethyl – 4 –<br />
propylnonane<br />
9 2, 2 – Dimethyl – 5 – (1, 1, 2 – trimethylpropyl)<br />
nonane<br />
Compounds With One<br />
Functional Group<br />
1 2,2-Dichlorobutane<br />
2 1-Bromo-3-chloro-2-iodopropane<br />
3 1,2-Dichlorobutane<br />
4 2 – Methylpropan – 1 – ol<br />
5 3 – Methylbutan – 2 – ol<br />
6 2-Methylpropan-2-ol<br />
7 2-Methyl-propane1,3-diol<br />
8 Propane-1,2,3-triol<br />
9 Methoxymethane<br />
10 Methoxyethane<br />
11 2 – Methoxybutane<br />
12 2-Methoxypropane<br />
13 2-Ethoxy-3-methoxybutane<br />
14 1,2-Dimethoxyethane<br />
15 2-Methylbutanal<br />
`16 Ethane1,2-dial<br />
17 Propan2-one<br />
18 Butan-2-one<br />
19 Pentane – 2, 4 – dione<br />
20 2-Methylpentane-2,3-dione<br />
21 2 – Methylpropanoic acid<br />
22 2-Methylbutanoic acid<br />
23 2,2-Dimethylpropanoic acid<br />
24 2,4-Dimethylhexanoic acid<br />
25 Ethane-1,2-dioic acid<br />
26 Butane-1,4-dioic acid<br />
27 Butane-1,2-dinitrile<br />
28 Butane-1,4-diamide<br />
29 2-Methylbutane-1,4-dial<br />
30 N,N-Dimethylmethanamine<br />
31 3-Methylpropanamine<br />
32 N-Methylethanamine<br />
33 Bis-(N-methyl)methanamine<br />
34 N,N-dimethybutan-2-amine<br />
35 2-Methylpropanthiol<br />
36 Ethanoic anhydride<br />
37 Ethanoicpropanoic anhydride<br />
38 Ethylethanoate<br />
39 Methylmethanoate<br />
40 Methylethanoate<br />
41 Ethylmethanoate<br />
42 Isopropyl-3-methylbutanoate<br />
Polyfunctional Group<br />
1 3-Bromopropanal<br />
2 But – 3 – enoic acid<br />
3 3 - Hydroxybutanal<br />
4 3 - Chlorobutanamide<br />
5 1-Chloropropan-2-one<br />
6 3-Hydroxybutanoic acid<br />
7 4-Ketopentanal<br />
8 3- Bromopropanoylbromide<br />
9 Ethyl-3-ketobutanoate<br />
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<strong>Solution</strong> of <strong>Nomenclature</strong><br />
10 Ethyl-3-aminobutanoate<br />
11 3-Formylbutanoic acid<br />
12 Ethylbut-2-enoate<br />
13 1 – Hydroxy – 4 – methylpentan – 3 – one<br />
14 4 – Hydroxy – 2 – methylbutanoic acid<br />
15 Hex – 3 – ene – 1,2 – dioic acid<br />
16 6-Amino-5-chloro-4-oxoheptanoic acid<br />
17 Methyl-6-cyano-4-methoxyhexanoate<br />
18 2-Amino-3-hydroxy-4-oxopentanoic acid<br />
19 5-Formyl-3-oxopentanoic acid<br />
20 3-Hydroxy-N,N-dimethylbutanamide<br />
21 4 – Bromo – 3 – chloro – 6 – nitro octane<br />
22 3 – (1 – Chloroethyl) – 4 – methyl – 4 –<br />
phenylpentan – 2 – one<br />
23 Ethyl – 3 – hydroxybutanoate<br />
24 3 – Methoxypentanoylchloride<br />
25 4 – (2– Butenyl) – non – 6 – enoic acid<br />
26 (1 – Methylethyl) propanoate or<br />
Isopropylpropanoate<br />
27 1-Formylmethanoic acid<br />
BondLine<br />
1 3-Methylhexane<br />
2 3,3,4-Trimethyloctane<br />
3 2,2,6,6-Tetramethyloctane<br />
4 1-Cyclopropyl-3-methylpentene<br />
5 3, 3 – Diethylpentane<br />
6 5-(1,2-Dimethylpropyl)decane<br />
7 5-Butyldec-3-ene<br />
8 4-(1-Methylethyl)-oct-2-ene<br />
9 5 – (1, 2 – Dimethyl propyl) nonane<br />
10 5-Ethyl-4,6-dimethylocta-1,4-diene<br />
11 3,4-Dipropylhepta-1,3,5-triene<br />
12 5,6-Diethyl-3-methyldec-4-ene<br />
13 7 – Ethyl – 2, 4, 5, 6 – tetramethyldec – 1, 8 –<br />
diene<br />
14 3,7-Dimethylocta-1,3,6-triene<br />
15 3-Methylhexa-1,3,5-triene<br />
16 Hexa-2,4-diyne<br />
17 3,3-Dimethylpent-1-ene-4-yne<br />
18 Oct-1-en-4-yne<br />
19 4-Ethyl-2-cyclopropylhexene<br />
20 4-Ethyl-hex-4-ene-2-ol<br />
21 2-(2-Chloropropyl)hexa-1,3,5-triene<br />
22 1-Chloro-3-ethyl-2-pentanone<br />
23 3,4-Dimethylpent-1-en-3-ol<br />
24 3-Hydroxy-3-methyl-butanoic acid<br />
25 3,3,5-Trimethyl-hex-1-en-2-ol<br />
26 Ethane-1,2-dioic acid<br />
27 Propanoic Anhydride<br />
28 2 – Ethyl – 3 – methyl pent – 2 – en – 1 – al<br />
29 5 – Ethyl – 4 – methyl non – 4 – enoic acid<br />
30 5 – Ethyl – 3 – methyl octanoic acid<br />
31 3-Hydroxy-5-ketohexanoic acid<br />
32 5 – Methyl – 3, 6 – octadien – 4 – ol<br />
33 3,7-Dimethylocta-2,6-dienal<br />
34 2,6-Dimethylhepta-2,5-dienoic acid<br />
35 Ethyl-2-cyanopropanoate<br />
36 N-Ethyl-N-methyl-2-aminopropane<br />
37 3(N,N-Dimethyl)-3-ethylpentanamine<br />
38 N,N-Diemethylbutanamide<br />
AliCyclic Compound<br />
1 Cyclododecane<br />
2 Methylcyclohexane<br />
3 Ethylcyclopentane<br />
4 1-Ethyl-5-methylcyclohexane<br />
5 (2-Propyl)cyclohexane<br />
6 1, 3, 5 – Tris (hexyl) cyclohexane<br />
7 1-Ethyl-2-methyl-5-propylcyclohexane<br />
8 Cyclohexylcyclohexane<br />
9 1,2-Dicyclohexylethane<br />
10 Cyclopropylpropane<br />
11 Cyclobutylbutane<br />
12 1 – Cyclobutylpentane<br />
13 2 – Cyclopropylbutane<br />
14 3 – Cyclobutylpentane<br />
15 (2 – Butyl) cyclopentane<br />
16 1, 3 – Dicyclohexylpropane<br />
17 Dicyclopropyl methane<br />
18 1, 1, 2, 4 – Tetraethyl – 3 – methyl cyclobutane<br />
19 3-Methyl-1-cyclohexyne<br />
20 1-Cyclohexylethene<br />
21 3-Ethylcyclopent-1-ene<br />
22 4 – Cyclobutylbut – 1 – ene<br />
23 2-Ethenyl-3-methylcyclohexa-1,3-diene<br />
24 4-Cyclohexylbut-3-en-2-ol<br />
25 3-Methylcyclopentan-1-ol<br />
26 3-Aminocyclohexanone<br />
27 4-Oxocyclohexan-1-carboxylic acid<br />
28 5-Ethyl-6-methylcyclohex-2-en-1-one<br />
29 2 – Cyclohexyl ethanoic acid<br />
30 3 – Cyclohexyl butan – 2 – ol<br />
31 Ethyl cyclohexyl methanoate<br />
32 5, 6 – Dimethyl cyclohex – 2 – en – 1 – one<br />
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<strong>Solution</strong> of <strong>Nomenclature</strong><br />
33 2, 3 – Dimethyl cyclohexanone<br />
34 3 – Cyclopropyl – prop – 2 – enoic acid<br />
35 1 – Cyclohexyl pent – 1 – en – 3 – one<br />
36 N – Cyclohexyl Propanamide<br />
37 3-Cyclopropyl-3-methylbutanal<br />
38 2-Carboxy-5-<strong>for</strong>myl-cyclohexanone<br />
39 3-Bromo-4,4-dimethylcyclohexanol<br />
40 Propylcyclopentylmethanoate<br />
41 2-Bromo-6-methylcyclohexanecarbaldehyde<br />
42 3 – Ethoxy carbonyl cyclohexane carboxylic<br />
acid<br />
43 5 – Bromo – 2, 2 – dimethyl cyclohexanone<br />
44 2 – Isopropyl – 4 – methyl cyclohexanol<br />
45 1 – (2 – Butenyl) cyclohexane<br />
46 Methyl (2 – hydroxyl cyclopentane) carboxylate<br />
47 1-(4-Hydroxycyclohexyl)butane-1,4-diol<br />
48 Isopropyl – 3 – hydroxycyclohexane<br />
carboxylate<br />
Aromatic<br />
1 Ethoxybenzene<br />
2 Phenoxybenzene<br />
3 4-Hydroxybenzaldehyde<br />
4 3-Phenylpropanal<br />
5 1-Phenylethan-1-one (Acetophenone)<br />
6 2,4-Dinitrophenol<br />
7 2,4,6-Trinitrophenol<br />
8 1,3,5-Trinitrobenzene<br />
9 2,4,6-Trinitrotoluene<br />
10 1,2-Benzenedicarboxylic acid<br />
11 N-Methylbenzenamine<br />
N-Methylaniline<br />
12 2-Phenylethanamine<br />
13 Benzoic anhydride<br />
14 4-Methylbenzenesulphonic acid<br />
OR, 4-toluenesulphonic acid<br />
15 N-Methylbenzanamide<br />
16 2-Chloro-4-methoxytoluene<br />
17 4-Ethyl-1-fluoro-2-nitrobenzene<br />
18 4-Hydroxy-3-methylbenzaldehyde<br />
19 2,3-Dibromo-1-phenylpentane<br />
20 Methyl – 2(chlorocarbonyl) benzoate<br />
21 1, 3 – bis(Bromomethyl) benzene<br />
22 N – Ethyl – N – phenyl butanamide<br />
23 3-Phenylbutanal<br />
24 3-Phenylprop-2-enoic acid<br />
25 2 – ( 4 – chlorophenyl) Propanoic acid<br />
26 Ethyl – 2 – bromo – 2(3 – nitrophenyl)<br />
propanoate<br />
Bicyclo compund<br />
1 Bicyclo[3.1.0]hexane<br />
2 Bicyclo[3.3.0]octane<br />
3 Bicyclo[4.2.0]octane<br />
4 8-Methylbicyclo[3.2.1]octane<br />
5 Bicyclo[2.2.2]octane<br />
6 Bicyclo[1.1.1]pentane<br />
8 Bicyclo[2.2.1]heptane<br />
9 Bicyclo[2.1.1]hexane<br />
10 Bicyclo[2.1.1]hept-2-ene<br />
11 Bicyclo[3.1.1]hept-2-ene<br />
12 1,7,7-Trimethylbicyclo[2.1.1]hept-2-one<br />
13 Bicyclo [3.2.2] nonane<br />
14 Bicyclo [2.2.2] octa – 2, 6 – dione<br />
15 Bicyclo [2.2.2] oct – 5 – ene – 2 – nitrile<br />
16 7, 7 – Dimethyl bicycle [2.2.1] heptanes<br />
17 2, 7, 7 – Trimethylbicylo [3.1..1] hept – 2 – ene<br />
18 4-Chloro-3-ethyl-1,8-<br />
dimethylbicyclo[3.2.1]octane<br />
19 1 – Ethylbicyclo [2.2.1] heptane<br />
20 3, 3 – Dimethylbicyclohept – 6 – ene<br />
21 2, 2, 4, 4 – Tetramethyl bicyclo [1.1.0] butane<br />
22 1 – Methylbicyclo [2.2.1] hept – 5 – en – 2 – ol<br />
23 6, 6 – Dimethylbricyclo [3.1.1] hept – 3 – en – 2<br />
–one<br />
Spiro<br />
1 Spiro[3.3]heptane<br />
2 Spiro[2.4]heptane<br />
3 Spiro[3.5]nonane<br />
4 Spiro [4.5] deca – 1, 6 – diene<br />
5 2 – Methyl spiro [4.5] deca -1, 6 – diene<br />
6 1 – Chloro spiro[3.4] octene<br />
Tercyclo<br />
1 1, 1’, 2’, 1’’- Tercyclobutane<br />
2 1, 1’, 4’, 1’’ – Terphenyl<br />
3 1, 1’, 2’, 1’’ – Tercyclopropane<br />
Special Case<br />
1 Butane-1,2,4-tricarbonitrile<br />
2 Pentane-1,3,5-tricarboxylic acid<br />
3 Propane-1,2,3-tricarbaldehyde<br />
4 3-(Cyanomethyl)hexane-1,6-dinitrile<br />
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<strong>Solution</strong> of <strong>Nomenclature</strong><br />
5 3-(Carboxymethyl)hexane-1,6-dioic acid<br />
6 3,3-bis(Formyl methyl)hexane-1,6-dial<br />
7 3,3-bis(Carbamoyl methyl)pentane-1,5-diamide<br />
8 2-Hydroxy-1,2,3-propane tricarboxylic acid<br />
9 1, 3 – Dichloro – 2, 2 – bis (chloromethyl)<br />
propane<br />
Harder Problems<br />
1 2-Chloromethyl-5-<strong>for</strong>myl-3-hydroxymethyl-2-<br />
N,N-dimethylamino-6-methoxy-4-nitrosonon-8-<br />
en-1-nitrile<br />
2 1,3,5-Tridecylcyclohexane<br />
3 Ethyl – 2 – cyano – 3 – oxo – 4, 6 – dimethyl – 5<br />
– cyclopropylhept – 5 – ene – 1 – oate<br />
4 2 – Amido – 2 – chlorocarbonyl – 5 – (N – ethyl,<br />
N – methyl) amino - 6 – methylene – 9 –<br />
propoxycarbonyldec -4, 7 – diene – 1 – oic acid<br />
5 2,2-bis(2-Hydroxyethoxy)ethanoic acid<br />
6 2,2-bis(4-Chlorophenyl)-1,1,1-trichloroethane<br />
7 1, 1, 1 – Trichloro – 2, 2 – diphenylethane<br />
Write the structure of the<br />
following compounds whose<br />
IUPAC names are given as<br />
under<br />
Soln. 1<br />
But – 2 – ene<br />
CH3-CH=CH-CH3<br />
Soln. 2<br />
1, 2, 3 – Propanetriol<br />
Soln. 3<br />
Ethanoyl chloride<br />
CH 3 COCl<br />
Soln. 4<br />
2, 3 - Pentadione<br />
CH 3<br />
-C-C-CH 2<br />
-CH 3<br />
|| ||<br />
O O<br />
Soln. 5<br />
Octa – 3, 5 – diene<br />
CH 3 -CH 2 -CH=CH-CH=CH-CH 2 -CH 3<br />
Soln. 6<br />
4 – Hydroxyl – 3 – pentenoic acid<br />
CH 3<br />
-C=CH-CH-COOH<br />
|<br />
OH<br />
Soln. 7<br />
2, 3 – Dimethylbutan – 2 – ol<br />
OH<br />
|<br />
CH 3<br />
-CH-C-CH<br />
| | 3<br />
CH 3 CH 3<br />
Soln. 8<br />
2, 2 – Dimethylpentanal<br />
CH 3<br />
|<br />
CH 3<br />
-CH 2<br />
-CH 2<br />
-C-CHO<br />
|<br />
CH 3<br />
Soln. 9<br />
2, 7 – Dimethylocta – 2, 4, 6 – triene<br />
CH 3<br />
C=CH-CH=CH-CH=C-CH | 3<br />
|<br />
CH 3<br />
CH 3<br />
Give the IUPAC name of the<br />
following compounds<br />
Soln. 1<br />
Acetylene<br />
CHCH<br />
Ethyne<br />
Soln. 2<br />
Methylacetylene<br />
CH 3 CCH<br />
Propyne<br />
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|<br />
|<br />
<strong>Solution</strong> of <strong>Nomenclature</strong><br />
Soln. 3<br />
Dimethylacetylene<br />
CH 3 CCCH 3<br />
Soln. 4<br />
Isobutane<br />
CH 3<br />
|<br />
CH 3<br />
CHCH 3<br />
2-Methylpropane<br />
Soln. 5<br />
Isopentane<br />
CH 3<br />
- CH - CH 2<br />
- CH 3<br />
|<br />
CH 3<br />
2-Methylbutnae<br />
Soln. 6<br />
Neopentane<br />
CH 3<br />
|<br />
CH 3<br />
C CH 3<br />
|<br />
CH 3<br />
Soln. 9<br />
Ethylidene bromide<br />
CH 3<br />
CH<br />
Br<br />
Br<br />
1,1-Dibromoethane<br />
Soln. 10<br />
Vinyl chloride<br />
CH 2 =CH-Cl<br />
Chloroethene<br />
Soln. 11<br />
Allyl bromide<br />
CH 2 = CH – CH 2 - Br<br />
3-Bromopropene<br />
Soln. 12<br />
Benzyl alcohol<br />
C 6 H 5 CH 2 OH<br />
Phenylmethanol<br />
Soln. 13<br />
Benzylidene chloride<br />
C 6<br />
H 5<br />
CH<br />
Br<br />
Br<br />
1,1-Dibromophenylmethane<br />
2,2-Dimethylpropane<br />
Soln. 7<br />
Neohexane<br />
CH 3<br />
CH 3<br />
- C - CH 2<br />
CH 3<br />
CH 3<br />
2,2-demethylbutane<br />
Soln. 8<br />
Ethylene bromide<br />
CH 2<br />
-CH | | 2<br />
Br Br<br />
1,2-Dibromoethane<br />
Soln. 14<br />
Glycol<br />
CH 2<br />
-CH 2 | |<br />
OH OH<br />
Ethane-1,2-diol<br />
Soln. 15<br />
Glycerol<br />
H - C - C - C - H<br />
OH OH OH<br />
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H<br />
H H<br />
Propane – 1,2,3 - triol
<strong>Solution</strong> of <strong>Nomenclature</strong><br />
Soln. 16<br />
ter-butyl alcohol<br />
CH 3<br />
|<br />
CH 3<br />
-C-CH<br />
| 3<br />
OH<br />
2-Methypropan-2-ol<br />
Soln. 17<br />
sec-Butyl alcohol<br />
CH 3<br />
-CH-CH 2<br />
CH 3<br />
|<br />
OH<br />
Butan-2-ol<br />
Soln. 18<br />
Formaldehyde<br />
HCHO<br />
Methanal<br />
Soln. 19<br />
Acetaldehyde<br />
CH 3 CHO<br />
Ethanal<br />
Soln. 20<br />
Acetone<br />
CH 3 COCH 3<br />
Propan-2-one<br />
Soln. 21<br />
Glyoxal<br />
O = C - C = O<br />
| |<br />
H H<br />
Ethane-1,2-dial<br />
Soln. 22<br />
Methyl glyoxal<br />
CH 3 COCHO<br />
2-Ketopropanal<br />
Soln. 23<br />
Mesitylene<br />
CH 3<br />
H 3 C<br />
CH 3<br />
1,3,5-trimethybenzene<br />
Soln. 24<br />
Formic acid<br />
HCOOH<br />
Methanoic acid<br />
Soln. 25<br />
Acetic acid<br />
CH 3 COOH<br />
Ethanoic Acid<br />
Soln. 26<br />
Oxalic acid<br />
HO - C - C - OH<br />
|| ||<br />
O O<br />
Ethane-1,2-dioic acid<br />
Soln. 27<br />
Formamide<br />
HCONH 2<br />
Methanamide<br />
Soln. 28<br />
Acetamide<br />
CH 3 CONH 2<br />
Ethanamide<br />
Soln. 29<br />
Ethylacetate<br />
CH 3 COOC 2 H 5<br />
Ethylethanoate<br />
Soln. 30<br />
Acetyl chloride<br />
CH 3 COCl<br />
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<strong>Solution</strong> of <strong>Nomenclature</strong><br />
Ethanoyl Chloride<br />
Soln. 2(b)<br />
Soln. 31<br />
TNT<br />
O<br />
O -<br />
N +<br />
CH 3 O<br />
N + O -<br />
2-bromo-5-hydroxy benzonitrile (as CN – group gets<br />
the top priority).<br />
Soln. 3(c)<br />
COCl<br />
|<br />
O -<br />
2,4,6-Trinitrotoluene<br />
N +<br />
O<br />
IUPAC name of is<br />
chloride<br />
Soln. 4(d)<br />
benzene carbonyl<br />
Soln. 32<br />
DDT<br />
Cl CH - CCl 3<br />
CH 3<br />
- CH - CH 2<br />
- CH 2<br />
- CH 3<br />
|<br />
CH isopropyl group<br />
3<br />
Soln. 5(b)<br />
Cl<br />
2,2-bis(4-Chlorophenyl)-1,1,1-trichloroethane<br />
Soln. 33<br />
Isobutyric acid<br />
CH 3<br />
CHCOOH<br />
|<br />
CH 3<br />
2-Methylpropanoic acid<br />
Soln. 34<br />
Methy vinyl ketone<br />
CH 3 COCH=CH 2<br />
But-3-en-2-one<br />
IIT Advanced<br />
Soln. 1<br />
Butane dioic acid or 1, 4-Butane dioic acid<br />
H<br />
|<br />
H 2<br />
C = CH - C - CH 3<br />
1<br />
3<br />
2 | 4<br />
CH 3<br />
3-methyl-1-butene<br />
Soln. 6(c)<br />
CH 3<br />
|<br />
H 3<br />
C - C - CH = CH 2<br />
| 2<br />
4<br />
3 1<br />
CH 3<br />
3, 3-dimethyl-1-butene<br />
Soln. 7<br />
(i) Pent-2-en-1 oic acid or 2-pentenoic acid<br />
(ii) 3-(N, N-dimethyl amino) 3-methyl pentane or 3-<br />
(N, N-Dimethyl)-3 methyl-3-pentamine.<br />
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<strong>Solution</strong> of <strong>Nomenclature</strong><br />
Soln. 1(d)<br />
IIT Mains/AIEEE<br />
CH 3<br />
CHCHCH 3<br />
H 3<br />
C<br />
OH<br />
Correct IUPAC<br />
3 – methyl – 2 – butanol<br />
Soln. 2(b)<br />
The IUPAC name of CH 3 COCH(CH 3 ) 2 is<br />
3 – methyl butan – 2 – one<br />
Soln. 3(c)<br />
Soln. 7(b)<br />
As about the double bond, two geometrical isomers<br />
are possible and the compound is having one chiral<br />
carbon. So there are four stereo isomers.<br />
Soln. 1(b)<br />
1<br />
3 4<br />
CH 3<br />
- C = CH - CH<br />
2<br />
3<br />
|<br />
CH 3<br />
2-Methyl-2-butene<br />
Soln. 2(b)<br />
AIPMT<br />
The IUPAC name<br />
HO<br />
is<br />
5<br />
3<br />
4<br />
2 1<br />
CH 3<br />
- CH - CH = C - CHO<br />
| |<br />
OH CH 3<br />
3, 3 – dimethyl – 1 – cyclohexanol<br />
Soln. 4(c)<br />
Cl<br />
4-Hydroxy-2-methylpent-2-en-1-al<br />
Soln. 3(b)<br />
When many substituents are present, the numbering<br />
is done from the end where the sum of locants is the<br />
lowest (lowest sum rule)<br />
The IUPAC name<br />
Br<br />
is<br />
7 6 5 4 3 2 1<br />
H 3<br />
C - CH - CH - CH 2<br />
- CH 2<br />
- CH - CH 3<br />
| |<br />
|<br />
CH 3<br />
CH 3<br />
CH 3<br />
3 – bromo – 1 – chlorocyclohexane<br />
Soln. 5(c)<br />
The IUPAC name of<br />
Is<br />
3 – ethyl – 4, 4 – dimethyl heptane<br />
Soln. 6(b)<br />
– SO 3 H, - COOH, - CONH 2 , - CHO<br />
2, 5, 6-trimethylheptane<br />
2 + 5 +6 = 13<br />
1<br />
2 3 4 5 6 7<br />
H 3<br />
C - CH - CH - CH 2<br />
- CH 2<br />
- CH - CH 3<br />
| |<br />
|<br />
CH 3<br />
CH 3<br />
CH 3<br />
2 + 3 + 6 = 11<br />
2, 3, 6-trimethylheptane<br />
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|||<br />
|||<br />
<strong>Solution</strong> of <strong>Nomenclature</strong><br />
Soln. 4(c)<br />
Soln. 7(b)<br />
Cl<br />
H 3<br />
C<br />
|<br />
|<br />
C = C<br />
|<br />
|<br />
CH 2<br />
CH 3<br />
I<br />
H 3 C<br />
4<br />
1<br />
CH 3<br />
2<br />
H 3 C<br />
3<br />
5<br />
6<br />
7<br />
As in this compound the common groups i.e. highly<br />
electronegative halogen atoms are on opposite side,<br />
hence it is a trans isomer. Thus its name is trans-2-<br />
chloro-3-iodo-2-pentene<br />
Soln. 5(a)<br />
CH 3<br />
4-ethyl-3-methyloctane<br />
Soln. 8(a)<br />
Correct IUPAC name of<br />
1 2 3 4<br />
CH 3<br />
- C - CH - CH 3<br />
|| |<br />
O CH 3<br />
2-Methyl-3-butanone<br />
CH 3<br />
|<br />
CH 3<br />
- CH 2<br />
- CH 2<br />
- CH - CH - CH 2<br />
CH 3<br />
|<br />
CH 2<br />
CH 3<br />
1 2 3<br />
CH 3<br />
- CH - CH - CH 3<br />
| | 4 5<br />
CH 3 CH 2<br />
CH 3<br />
2,3-Dimethylpentane<br />
is 4-Ethyl-3-methyl heptane.<br />
Soln. 9(c)<br />
4 3 2 1<br />
CH 3<br />
- CH - CH - CH 3<br />
|<br />
Cl<br />
|<br />
Br<br />
2-Bromo-3-chlorobutane<br />
5<br />
4<br />
3 2 1<br />
C<br />
O<br />
Cl<br />
1 2 3 4 |<br />
CH 3<br />
- C<br />
5<br />
CH 3<br />
C - CH<br />
|<br />
CH 3<br />
4-Methyl-2-pentyne<br />
Soln. 6(b)<br />
The IUPAC name of<br />
1 2 3<br />
4 5 6<br />
CH 2 = CH - CH 2 - CH 2 - C<br />
CH<br />
is Hex-1-en-5-yne or 1-hexene-5-yne.<br />
It is 2, 3-dimethylpentanoyl chloride<br />
Soln. 10(a)<br />
The given compound is<br />
2 1<br />
CH = CH 2<br />
|<br />
CH 3<br />
- CH 2<br />
- CH 2<br />
- C - C - CH 2<br />
- CH 3<br />
3<br />
| 4<br />
CH 2<br />
- CH 3<br />
5 6<br />
4-Ethyl-3-propyl hex-1-ene<br />
The lowest number is given to the C = C double<br />
bond.<br />
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<strong>Solution</strong> of <strong>Nomenclature</strong><br />
Soln. 11(a)<br />
CH 3<br />
1<br />
Cl<br />
C = C<br />
2<br />
3<br />
4 5<br />
CH 2<br />
CH 3<br />
I<br />
Correct IUPAC name of above compound is trans-2-<br />
chloro-3-iodo-2-pentene<br />
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