Cobalt(III)–porphyrin complex (CoTCPP) as an efficient and recyclable homogeneous catalyst for the synthesis of tryptanthrin in aqueous media

Visible Light‐Induced Radical‐Radical Coupling: One‐Pot Synthesis of 6‐Benzyl‐6‐hydroxyindolo[2,1‐b]quinazolin‐12(6H)‐ones from Isatins and Potassium Benzyl Trifluoroborates

“…[4] At present, most methods for synthesizing tryptanthrins use isatin or indole as starting materials. These methods usually require oxidants (such as POCl 3 , [9,10] tert-butyl hydroperoxide (TBHP), [1] KMnO 4 [11] or I 2 [12,13] ), metal reagents (such as CuI, [8,14] ZnOÀ NP, [2] CoCl 2 [15] or 5,10,15,20-tetrakis-(4-carboxlatophenyl)porphyrin-cobalt(III) chloride (CoTCCP) [16] ), or high temperature conditions. [3,[17][18][19] In addition, visible light catalysis can also be used for the synthesis of tryptanthrins.…”

Boosting the catalytic performance of zinc linked amino acid complex as an eco‐friendly for synthesis of novel pyrimidines in aqueous medium

“…In the last years, one of the aims of our group has been to evaluate new tools and methodologies for synthesized bioactive heterocyclic analogues by means of an efficient catalyst. [ 18–24 ] Following this aim, we designed some novel hybrid molecules pyrimidine compounds 5a–q coming from two pathways: one pot reaction of guanidines 3 a–c with aromatic aldehyde 1 , acetophenones 2 , or guanidines 3 a–c with different chalcones 4 a–j in aqueous medium using Zn( l ‐proline) 2 as a catalyst. The structure of pyrimidines 5a–q was elucidated by Pubchem ID: (17297507, 60147594).…”

Green Method for the Synthetic Ugi Reaction by Twin Screw Extrusion without a Solvent and Catalyst

“…In recent years, we have worked constantly on the development of new tools and methodologies for bioactive compounds synthesized using green methodologies. − …”