In situ generation of Iron(iii) dodecyl sulfate as Lewis acid-surfactant catalyst for synthesis of bis-indolyl, tris-indolyl, Di(bis-indolyl), Tri(bis-indolyl), tetra(bis-indolyl)methanes and 3-alkylated indole compounds in water

Iron Catalysis in Organic Synthesis

“…The addition of indole to Michael acceptors has been described by Maleki et al 158 They used in situ generated iron(III) dodecyl sulfate as Lewis acidÀsurfactant catalyst for this transformation to generate a series of Michael adducts in excellent yields.…”

Caesium carbonate supported on hydroxyapatite‐encapsulated Ni0.5Zn0.5Fe2O4 nanocrystallites as a novel magnetically basic catalyst for the one‐pot synthesis of pyrazolo[1,2‐b]phthalazine‐5,10‐diones

“…Due to the reasonable needs for clean and green recovery of heterogeneous catalysts, especially base catalysts, and in continuation of our previous works on the applications of reusable catalysts in organic reactions, we decided to design a novel version of hydroxyapatite‐supported caesium carbonate (HAP‐Cs 2 CO 3 ) to facilitate efficient recycling of this catalyst. For this purpose, we prepared NZF@HAP‐Cs and, after its characterization, synthesis of 1 H ‐pyrazolo[1,2‐b]phthalazine‐5,10‐dione derivatives was selected to investigate its catalytic activity and recyclability (Scheme ).…”

One-Pot Synthesis of Isobenzofuran-1(3h)-Ones Using Sulfuric Acid Immobilized on Silica Under Solvent-Free Conditions and Survey of Third-Order Nonlinear Optical Properties

“…In continuation of our research to develop new and eco-friendly synthetic methodologies [36][37][38][39][40][41][42][43][44][45][46] , we herein present efficient and environmentally benign protocols for the synthesis of isobenzofuran-1(3H)-one derivatives by condensation of phthalaldehydic acid (2-carboxy benzaldehyde) with aryl ketones or 1,3-dicarbonyl compounds catalyzed by H 2 SO 4 -SiO 2 under solventfree conditions at 120 0 C (Scheme 1). To further explore the scope of this protocol, we decided to investigate the condensation reaction of phthalaldehydic acid (2-carboxy benzaldehyde) with another aryl ketones or 1,3-dicarbonyl compounds (Table 2).…”