Brønsted acid catalyzed Diels–Alder reactions of 2-vinylindoles and 3-nitrocoumarins: an expedient synthesis of coumarin-fused tetrahydrocarbazoles Author:wangqiang Date:Dec 10, 2010 Read times: Congratulations! Fen's ultimate study of Diels-Alder reactions is published in Tetrahedron. [link] PreNews: Enantioselective Conjugate Addition of Oximes to Trisubstituted β-Nitroacrylates: An Organocatalytic Approach to β2,2-Amino Acid Derivatives NextNews: Asymmetric Cyclopropanation of β,γ-Unsaturated α-Ketoesters with Stabilized Sulfur Ylides Catalyzed by C2-Symmetric Ureas