Introduction. Definition Organic Chemistry is the chemistry of the compounds of carbon.
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Transcript of Introduction. Definition Organic Chemistry is the chemistry of the compounds of carbon.
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Organic ChemistryIntroduction
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Definition
Organic Chemistry is the chemistry of the compounds of carbon
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Organic CompoundsFood, flavors,
fragrances
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Organic CompoundsMedicine, toiletries and
cosmetics
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Organic CompoundsPlastics, films, fibers and
resins
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Organic CompoundsPaints, varnishes,
glue
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Organic CompoundsOur body and bodies of all other
living organisms
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Abundance of Elements
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Why study carbon?1. Historical
Organic compounds were produced by living organisms; inorganic compounds are found in non-living matter
Organic compounds cannot be synthesized from inorganic compounds
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Synthesis of UreaFriedrich Wohler
(1800-1882)
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New Definition of Organic Compounds August Kekule
Organic Compounds are compounds that contain carbon
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Why Study Organic Chemistry?2. Chemists have discovered/made more than
10 million organic compounds and an estimated 10,000 new ones are discovered or prepared in the laboratory each year
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Comparison of Organic and Inorganic CompoundsOrganic Inorganic
Bonding is almost entirely covalent
Most have ionic bonds
May be gases, liquids or solids with low melting points (less than 360 C)
Most are solids with high melting points
Most are insoluble in water
Many are soluble in water
Most are soluble in organic solvents
Almost all are insoluble in organic solvents
Aqueous solutions do not conduct electricity
Aqueous solutions conduct electricity
Almost all burn Very few burn
Reactions are usually slow
Reactions are often very fast
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Why study organic chemistry?3. Biomolecules (carbohydrates, proteins,
lipids, nucleic acids, enzymes, hormones, vitamins) and all other important chemicals in living systems are organic compounds
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Sources of Organic Compounds1. Isolation from nature – extraction from
biological sources (biosynthesis)2. Synthesis in the laboratory
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End of Chapter 1