Design and identification of nano‐Mg‐[4‐methoxy phenyl‐salicylaldimine–methyl‐pyranopyrzole] Cl₂ and its catalytic application on the preparation of 1‐(α‐aminoalkyl)‐2‐naphthols

Abstract

Nano‐Mg‐ [4‐methoxy phenylsalicylaldiminemethylpyranopyrazole]Cl2 (nano‐[Mg‐4MSMP]Cl2) as a nano‐Schiff base complex was prepared and fully characterized using some various techniques including fourier transform infrared spectroscopy (FT‐IR), energy‐dispersive x‐ray spectroscopy (EDS), X‐ray diffraction (XRD), thermal gravimetric analysis (TGA), differential thermal gravimetric analysis (DTA), mass spectroscopy (MS) and scanning electron microscopy (SEM). Nano‐[Mg‐4MSMP]Cl2 was successfully used as an efficient catalyst for the preparation of some 1‐(α‐aminoalkyl) ‐2 ‐naphthols.

Nano-[Fe3O4@SiO2/N-propyl-1-(thiophen-2-yl)ethanimine][ZnCl2] as a nano magnetite Schiff base complex and heterogeneous catalyst for the synthesis of pyrimido[4,5-b]quinolones

“…These complexes show higher biological activities than free metal ion. [34][35][36] Having above facts, in continues to previous works on the design and use heterogeneous catalyst based on Schiff base complex in organic synthesis, [37][38][39][40][41][42][43] we have introduced a new nano magnetite Schiff base complex namely, nano-[Fe 3 O 4 @SiO 2 /N-propyl-1-(thiophen-2-yl)ethanimine][ZnCl 2 ] and used it as an efficient heterogeneous catalyst for the preparation of pyrimido [4,5-b] quinolones by the reaction of aryl aldehyde, dimedone and 6amino-1,3-dimethyluracil (Scheme 1).…”

Recent Synthesis of Mono‐ & Bis‐Pyranopyrazole Derivatives

“…Moreover, phenyl substituted have antimicrobial, antioxidant, and antiproliferative [182] and COX-2 Inhibitors [183] activities. The P-SB complex nano-[Mg-4MSMP]Cl 2 , [184] nano-[Zn-2BSMP]Cl 2 . [185] , nano-[Fe-PSMP]Cl 2 [186,187] nano-[Mn-3NSMP]Cl 2 , [188] nano-[Co-4CSMP]Cl 2 [189] have also been used for catalyst.…”