CLASSIFICATION OF ORGANIC COMPOUND β OPEN CHAIN COMPOUND β CYCLIC COMPOUND AND ITS TYPE.
Hereβs a clear explanation of the Classification of Organic Compounds, focusing on Open Chain Compounds and Cyclic Compounds, along with their types:
Contents
- 1 CLASSIFICATION OF ORGANIC COMPOUNDS
- 1.1 1β£ OPEN CHAIN COMPOUNDS (Acyclic Compounds)
- 1.2 2β£ CYCLIC COMPOUNDS (Closed Chain Compounds)
- 1.3 A. Homocyclic (Carbocyclic) Compounds
- 1.4 B. Heterocyclic Compounds
- 1.5 Summary Chart:
- 1.6 Tips to Remember:
- 1.7 CLASSIFICATION OF ORGANIC COMPOUND β OPEN CHAIN COMPOUND β CYCLIC COMPOUND AND ITS TYPE.
- 1.8 Organic chemistry β sOme Basic PrinciPles and Techniques
- 1.9 Nomenclature of Organic Compounds
CLASSIFICATION OF ORGANIC COMPOUNDS
Organic compounds are primarily classified based on the arrangement of their carbon atoms into:
1β£ OPEN CHAIN COMPOUNDS (Acyclic Compounds)
Examples:
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Straight Chain:
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Methane: CHβ
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Propane: CHββCHββCHβ
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Branched Chain:
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Isobutane:
CHββCH(CHβ)βCHβ
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2β£ CYCLIC COMPOUNDS (Closed Chain Compounds)
They are further classified into two major types:
A. Homocyclic (Carbocyclic) Compounds
Ring contains only carbon atoms.
β€ (i) Alicyclic Compounds
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Resemble aliphatic compounds in behavior.
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Ring of carbon atoms only, non-aromatic.
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Cyclopropane (CβHβ)
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Cyclobutane (CβHβ)
β€ (ii) Aromatic Compounds
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Contain conjugated Ο-electrons in ring.
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Follow HΓΌckelβs rule: (4n + 2) Ο electrons.
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Benzene (CβHβ)
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Naphthalene (CββHβ)
B. Heterocyclic Compounds
Ring contains carbon atoms + other atoms (like O, N, S)
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Furan (O in ring)
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Pyridine (N in ring)
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Thiophene (S in ring)
Summary Chart:
Type | Sub-type | Key Feature | Example |
---|---|---|---|
Open Chain | Acyclic | Straight or branched chains | Butane |
Cyclic | Alicyclic | Ring of C atoms, non-aromatic | Cyclopentane |
Aromatic | Ring with conjugated Ο system | Benzene | |
Heterocyclic | Ring with C + other atoms (O, N, S) | Furan, Pyridine |
Tips to Remember:
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βAlicyclicβ = Aliphatic + Cyclic
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βAromaticβ = Smells + Special stability (resonance)
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βHeterocyclicβ = Hetero (different) atoms in ring
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