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Nano-Fe3O4 Encapsulated-Silica Particles Bearing Sulfonic Acid Groups as a Magnetically Separable Catalyst for Highly Efficient Knoevenagel Condensation and Michael Addition Reactions（图）
magnetic nanoparticle silica Knoevenagel condensation Michael addition cyclic diketone
2013/10/4
Sulfonic acid-functionalized silica-coated nano-Fe3O4 particles (Fe3O4@SiO2-SO3H) have been prepared as a novel heterogeneous acid using a facile process. The material was subsequently identified as a...
Total Synthesis of (±)-Decursivine and (±)-Serotobenine: A Witkop Photocyclization/Elimination/O-Michael Addition Cascade Approach
Total Synthesis of (±) Decursivine and (±)-Serotobenine A Witkop Photocyclization/Elimination/O-Michael Addition Cascade Approach
2012/7/3
Decursivine和Serotobenine是一类具有苯并二氢呋喃，吲哚并八元内酰胺多环体系的吲哚生物碱，分别具有抗疟疾及广泛的抗菌活性，其良好的生物活性和独特新颖的结构，引起了合成化学家的关注。其中Michael A. Kerr小组以18步3%的总收率首次完成了(±)-Decursivine的全合成，Tohru Fukuyama小组以24步8%的总收率首次完成了(-)-Serotobenin...