Synthesis of a novel dendrimer core of oxo-vanadium phthalocyanine magnetic nano particles: as an efficient catalyst for the synthesis of 3,4-dihydropyrano[c]chromenes derivatives under green condition

Abstract

A novel magnetically recoverable nanocatalyst with an amino vanadium oxo phthalocyanine pending, was synthesized, characterized and applied for the preparation of 3,4-dihydropyrano[c]chromenes derivatives.

A decennary update on applications of metal nanoparticles (MNPs) in the synthesis of nitrogen- and oxygen-containing heterocyclic scaffolds

“…Shahrisa et al reported the synthesis of N-sulfonylformamidines (149) using an N-heterocyclic complex-copper complex supported on magnetic cellulose (NHC-Cu@MCs) from the three-component reaction among arylsulfonyl azide (148), secondary alicyclic amines (108c) such as morpholine, Nmethylpiperazine, piperidine and pyrrolidine, and triethylamine (117f) in acetonitrile at rt in 85-94% yield (Scheme 63). 133 The NCs were synthesized via the treatment of ionic liquid-graed magnetic cellulose with copper iodide, potassium tertbutoxide in THF, and further well characterized via TGA, VSM, SEM, XRD, EDX, and FT-IR.…”

Cu@KCC‐1‐NH‐CS2 as a new and highly efficient nanocatalyst for the synthesis of 2‐amino‐4H‐chromene derivatives

“…Also, these compounds are significant in organic chemistry because of their unique and useful biological activity. [5][6][7][8][9][10][11][12][13][14] Too many methods for the synthesis of 2-amino-4Hchromene derivatives using one-pot Knoevenagel condensation of aldehydes, 1,3-dicarbonyles, and malononitrile in the presence of many catalysis such as [Sipim]HSO 4, [15] CuO nanoparticles, [16] nano Al 2 O 3, [17] DAHP, [18] TBBDA, [19] SDS, [20] MNP@AVOPc [21] and POPINO. [22] However, some of these methods have limitation and disadvantages such as: high cost, high reaction temperature, low yields, and long reaction times, use of toxic solvents, poor recovery and reusability of the catalyst.…”

Application of cobalt phthalocyanine as a nanostructured catalyst in the synthesis of biological henna‐based compounds

“…In continuation of our efforts to synthesize of novel catalysts and MCRs, we wish to report the synthesis of novel nano molten salt tetra‐2,3‐pyridiniumporphyrazinato cobalt tribromomethanide [Co (TPPABr)]CBr 3 as an efficient catalyst (Scheme ) for the synthesis of henna‐based compounds under various conditions (Scheme ).…”

“…[24][25][26][27][28][29][30] Phthalocyanines have found a varied range of application in the area of material science due to their distinct optical and electrical properties as well as their thermal stability. [31][32][33][34][35] In continuation of our efforts to synthesize of novel catalysts and MCRs, [36][37][38] we wish to report the synthesis of novel nano molten salt tetra-2,3-pyridiniumporphyrazinato cobalt tribromomethanide [Co (TPPABr)]CBr 3 as an efficient catalyst (Scheme 1) for the synthesis of henna-based compounds under various conditions (Scheme 2).…”