|
|
|
||
|
The course Stereoselective Organic Syntheses includes basic organic stereochemistry, analytical methods applicable to the studies of stereoizomers and stereoselective reactions, and methods of stereoselective syntheses of organic compounds. A series of diastereoselective and enantioselective organic reactions will be presented, and advantages or disadvantages of particular synthetic approaches will be discussed.
Last update: Cuřínová Petra (01.05.2026)
|
|
||
|
The subject is evaluated by 2 semestral tests and a final exam.
During the semester there are two tests (usually at 6. and 13. week). To pass it is necessary to gat at least 50 points of each test from possible 100.
The final exam is possible after passing the semestral tests. The exam is written. It is evaluated as follows: 0-50p F, 50-64p E, 65-74p D, 75-79p C, 80-89p B, 90-100p A. Oral part is possible when the student wants a better mark and used already all 3 possible attempts on the written exam. Last update: Cuřínová Petra (01.05.2026)
|
|
||
|
Recommended:
Optional:
Last update: prepocet_literatura.php (19.12.2024)
|
|
||
|
Lectures and seminars Last update: Cuřínová Petra (03.05.2026)
|
|
||
|
1. Introduction into stereochemistry of organic compounds. Symmetry, chirality. Stereochemical nomenclature: Central chirality, pseudochirality, prochirality, topicity.
2. Stereochemical nomenclature: axial chirality, planar chirality, helicity, inherent chirality.
3. Optical purity, separation of enantiomers, racemization. Studium of organic compounds stereoisomers by NMR, chiral solvating agents, chiral gels.
4. Studium of organic compounds stereoisomers using HPLC. Rentgenostructural analysis and chiroptic methods, determination of absolute configuration.
5. Conformational analysis, conformers of cyclic compounds. Principles of stereoselective syntheses.
6. Alkenes with defined stereochemistry, Wittig reaction, olefination reactions using phosphonates and silanes. Heck reaction.
7. Diels-Alder reaction, diastereoselective and enantioselective version. 3+2 cycloaddition, cyclopropanation.
8. Addition to C=X bond, Crams model, Felkin-Ahn model. Chelatation. Conjugated addition.
9. Stereoselective enolization. Diastereoselective aldolization.
10. Enantioselective aldolization.
11. Reduction of C=X bonds, BINALH, modified boranes, participation of neighboring group. Reduction by trichlorosilane with chirál ligands. Reduction of C=C bond, hydroboration.
12. Oxidation: epoxidation, dihydroxylation, jodolactonization. Rearrangements.
Last update: Cuřínová Petra (01.05.2026)
|
|
||
|
Study materials are available at the e-learning web of UCT. Last update: Cuřínová Petra (11.05.2026)
|
|
||
|
Students will be able to:
do stereochemical analysis of organic compounds and their reactions
propose a suitable synthetic method for preparation of the desired stereoisomer of a product
select a suitable analytical method for studies of stereoisomers and stereoselective reactions Last update: Cuřínová Petra (01.05.2026)
|
|
||
|
Knowledge of organic chemistry and organic synthesis at the Master level. Last update: Cuřínová Petra (03.05.2026)
|