Synthesis of Quinazoline Derivatives Catalyzed by a New Efficient Reusable Nanomagnetic Catalyst Supported with Functionalized Piperidinium Benzene‐1,3‐Disulfonate Ionic Liquid

Abstract

Some novel quinazoline derivatives are prepared via one-pot reaction of 2-amino-5-chlorobenzophenone, aromatic aldehydes and ammonium acetate using two different types of catalytic systems including nano-magnetic piperidinium benzene-1,3-disulfonate salt (PBDS-SCMNPs), and triethanolam-monium-2,2,2-trichloroacetate (TEATCA). The highlighting points of using PBDS-SCMNPs are easy purification, reusability of the catalyst, good yields of products with short time reactions compared with TATCA.

CuI nanoparticle-immobilized on a hybrid material composed of IRMOF-3 and a sulfonamide-based porous organic polymer as an efficient nanocatalyst for one-pot synthesis of 2,4-diaryl-quinolines

“…1). 40–43 Regarding strategies to synthesize quinoline derivatives, some routes possess specific advantages, i.e. , applying safer reagents and solvents, atom economy, being environmentally friendly, and reducing waste production.…”

“…1). [40][41][42][43] Regarding strategies to synthesize quinoline derivatives, some routes possess specic advantages, i.e., applying safer reagents and solvents, atom economy, being environmentally friendly, and reducing waste production. 44,45 The method proposed in our work (Scheme 1) is a one-step reaction with an easy purication process and simple recrystallization that takes advantage of the economy of solvents and atoms.…”

WO3 and Ionic Liquids: A Synergic Pair for Pollutant Gas Sensing and Desulfurization

“…Other systems that allow efficient IL recycling are the supported ionic liquid phases (SILPs) [94][95][96] or systems in which ILs are immobilized in a gelatinous network, giving rise to the obtainment of the so-called ionogels [97][98][99][100][101].…”

Investigation of N,N′‐Disulfopiperazinium Chlorometallates of Fe(III), Ni(II) and Co(II) as Hybrid Catalysts for the Synthesis of 1,2‐Dihydroquinazoline Derivatives

“…Some multi-component reactions are also employed for the synthesis of quinazolines and 1,2-dihydroquinazolines using various catalysts including acetic acid, [33] transition metal catalysts, [34,35] TBBDA, [36] Fe 2 O 3 supported catalysts [37] and also functionalized ionic liquid catalysts such as 1-methylimidazolium triflouroacetate ([Hmim]TFA), [38] butylmethylimidazolium tetrachloroferrate (bmim[FeCl 4 ]), [39] nano-mag-netic piperidinium benzene-1,3-disulfonate salt (PBDS-SCMNPs), and triethanolammonium-2,2,2-trichloroacetate (TEATCA). [40] It was seen that, only limited reports are available for the preparation of 1,2-dihydroquinazolines through different routes. [41][42][43][44] Kamal et al in 2019 [45] efficiently utilized sulfamic acid as reusable catalyst for preparation of varied 1,2dihydroquinazolines through reaction Scheme 1 in ethanol at 60 °C for 20-45 min.…”