ChemInform Abstract: Preparation and Characterization of New C2‐ and C1‐Symmetric Nitrogen, Oxygen, Phosphorous, and Sulfur Derivatives and Analogues of TADDOL. Part 1. Compounds Containing One or Two Sulfur‐Containing Substituents and Use in Cu‐Catalyzed Enantioselective Conjugate Additions to Cyclic Enones. Issue 8 (1st March 2013)