Ranked #1
30 - Esomeprazole as an Example of Drug Testing and Usage
30 - Esomeprazole as an Example of Drug Testing and Usage
The chemical mode of action of omeprazole is expected to be insensitive to its stereochemistry, making clinical trials o... Read more
27 Oct 2009
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Ranked #2
32 - Stereotopicity and Baeyer Strain Theory
32 - Stereotopicity and Baeyer Strain Theory
Why ethane has a rotational barrier is still debatable. Analyzing conformational and configurational stereotopicity rela... Read more
27 Oct 2009
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Ranked #3
31 - Preparing Single Enantiomers and Conformational Energy
31 - Preparing Single Enantiomers and Conformational Energy
After mentioning some legal implications of chirality, the discussion of configuration concludes using esomeprazole as a... Read more
27 Oct 2009
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Ranked #4
29 - Preparing Single Enantiomers and the Mechanism of Optical Rotation
29 - Preparing Single Enantiomers and the Mechanism of Optical Rotation
Within a lecture on biological resolution, the synthesis of single enantiomers, and the naming and 3D visualization of o... Read more
27 Oct 2009
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Ranked #5
27 - Communicating Molecular Structure in Diagrams and Words
27 - Communicating Molecular Structure in Diagrams and Words
It is important that chemists agree on notation and nomenclature in order to communicate molecular constitution and conf... Read more
27 Oct 2009
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Ranked #6
28 - Stereochemical Nomenclature; Racemization and Resolution
28 - Stereochemical Nomenclature; Racemization and Resolution
Determination of the actual atomic arrangement in tartaric acid in 1949 motivated a change in stereochemical nomenclatur... Read more
27 Oct 2009
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Ranked #7
26 - Van't Hoff's Tetrahedral Carbon and Chirality
26 - Van't Hoff's Tetrahedral Carbon and Chirality
With his tetrahedral carbon models van't Hoff explained the mysteries of known optical isomers possessing stereogenic ce... Read more
27 Oct 2009
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Ranked #8
25 - Models in 3-D Space (1869-1877); Optical Isomers
25 - Models in 3-D Space (1869-1877); Optical Isomers
Despite cautions from their conservative elders, young chemists like Paternó and van't Hoff began interpreting molecular... Read more
27 Oct 2009
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Ranked #9
24 - Determining Chemical Structure by Isomer Counting (1869)
24 - Determining Chemical Structure by Isomer Counting (1869)
Half a century before direct experimental observation became possible, most structures of organic molecules were assigne... Read more
27 Oct 2009
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Ranked #10
22 - Radical and Type Theories (1830-1850)
22 - Radical and Type Theories (1830-1850)
Work by Wöhler and Liebig on benzaldehyde inspired a general theory of organic chemistry focusing on so-called radicals,... Read more
27 Oct 2009
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Ranked #11
23 - Valence Theory and Constitutional Structure (1858)
23 - Valence Theory and Constitutional Structure (1858)
Youthful chemists Couper and Kekulé replaced radical and type theories with a new approach involving atomic valence and ... Read more
27 Oct 2009
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Ranked #12
21 - Berzelius to Liebig and Wöhler (1805-1832)
21 - Berzelius to Liebig and Wöhler (1805-1832)
The most prominent chemist in the generation following Lavoisier was Berzelius in Sweden. Together with Gay-Lussac in Pa... Read more
27 Oct 2009
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Ranked #13
20 - Rise of the Atomic Theory (1790-1805)
20 - Rise of the Atomic Theory (1790-1805)
This lecture traces the development of elemental analysis as a technique for the determination of the composition of org... Read more
27 Oct 2009
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Ranked #14
19 - Oxygen and the Chemical Revolution (Beginning to 1789)
19 - Oxygen and the Chemical Revolution (Beginning to 1789)
This lecture begins a series describing the development of organic chemistry in chronological order, beginning with the ... Read more
27 Oct 2009
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Ranked #15
18 - Amide, Carboxylic Acid and Alkyl Lithium
18 - Amide, Carboxylic Acid and Alkyl Lithium
This lecture completes the first half of the semester by analyzing three functional groups in terms of the interaction o... Read more
27 Oct 2009
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