Stereoselective Synthesis

Devising methods and reagents for stereoselective synthesis is an intellectually demanding venture. Six experts on diastereo- and enantioselective synthesis contributed their papers to this volume. They were presented at a symposium on stereoselective synthesis to honour Professor Dr. Dr. h.c. Rudolf Wiechert's achievements in medicinal chemistry research. The symposium was organized by the Schering AG on the occasion of Professor Wiechert's 65th birthday.

A symposium on stereoeselective synthesis was organized by
the Schering AG to honour Professor Dr. Dr. h.c. Rudolf
Wiechert's 65th birthday and his achievements in over 30
years of successful medicinal chemistry research.
The six plenary lectures by leading scientists are published
in this book. The contributions highlight recent progress on
diastereo- and enantioselective synthesis. Intriguing
methodological work, synthesis of homochiral building blocks
and elegant and highly efficient applications to the
synthesis of stereochemically demanding targetmolecules are
presented.
From the Contents: Steroids and Stereochemistry-
Enantioselective Catalysis with Chiral Metal Complexes - New
Aspects in Stereoselective Synthesis of Aminoalcohols and
Amino Acids - Enzymemimetic C-C and C-N Bond Formations -
Synthesis of Natural Product of Polyketide Origin, An
Exemplary Case - Progress in the Diels/Alder Reaction Means
Progress in Steroid Synthesis

Devising methods and reagents for stereoselective synthesis is an intellectually demanding venture. Six experts on diastereo- and enantioselective synthesis contributed their papers to this volume. They were presented at a symposium on stereoselective synthesis to honour Professor Dr. Dr. h.c. Rudolf Wiechert's achievements in medicinal chemistry research. The symposium was organized by the Schering AG on the occasion of Professor Wiechert's 65th birthday.

Steroids and Stereochemistry.- Enantioselective Catalysis with Chiral Metal Complexes.- 1. Introduction.- 2. Chiral C2-Symmetric Semicorrins.- 3. Analogues of Semicorrins: Aza-semicorrins and Bis (oxazolines).- 4. Pd-Catalyzed Allylic Substitution.- References.- New Aspects in Stereoselective Synthesis of Aminoalcohols and Amino Acids.- 1. The 1-3 segment.- 2. The 6-Position.- 3. Position 9: Prolines.- 4. Position 6, 8 or others: BAZ.- 5. Conclusion.- References.- Enzymemimetic C-C and C-N Bond Formations.- 1. Introduction.- 2. Enzymemimetic C-C Bond Formations.- 2.1. Diastereo-and Enantioselective C-C Bond Formations with a Chiral Dihydroxyacetone Phosphate Equivalent.- 2.2. Diastereo- and Enantioselective C-C Bond Formations with a Chiral Phosphoenolpyruvate Equivalent.- 2.3. Asymmetric Nucleophilic Acylations with Synthetic Equivalents for the "Active Aldehydes".- 3. Enzymemimetic C-N Bond Formations.- 4. Conclusion.- References.- Synthesis of Natural Products of Polyketide Origin, an Exemplary Case.- 1. Aims of Natural Product Synthesis, Changes over Time.- 2. New Methods for the Synthesis of Polyketide Derived Natural Products.- 3. Linear Synthesis of a Protected seco-Aacid of 9(S)-Dihydroerythronolide A.- 4. The Macrolactonization to 9(S)-Dihydroerythronolide A.- References.- Progress in the Diels/Alder Reaction Means Progress in Steroid Synthesis.- 1. Evaluation of the Diels/Alder Reaction: Cantharidin.- 2. Evaluation of the Diels/Alder Reaction: Norgestrel.- 2.1 Norgestrel Synthesis with Intramolecular Diels/Alder Reaction.- 2.2 Norgestrel Synthesis with Intermolecular Diels/Alder-Reaction.- 3. Parerga.- References.