2018
DOI: 10.1007/s10562-018-2414-4
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A New Green and Efficient Brønsted: Lewis Acidic DES for Pyrrole Synthesis

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Cited by 36 publications
(28 citation statements)
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“…Recently, six Type IV‐Deep Eutectic Solvents prepared from ZrOCl 2 ⋅ 8H 2 O/CeCl 3 ⋅ 7H 2 O with urea, ethylene glycol and glycerol) were reported (Table 1, entry 1–6), their physicochemical properties were studied and have been reported as attractive catalysts and suitable reaction media for Paal‐ Knorr reaction [40] and Knoevenagel condensation reaction [41] . All synthesized DESs existed as liquid at room temperature and were prepared by trial and error method.…”
Section: Resultsmentioning
confidence: 99%
“…Recently, six Type IV‐Deep Eutectic Solvents prepared from ZrOCl 2 ⋅ 8H 2 O/CeCl 3 ⋅ 7H 2 O with urea, ethylene glycol and glycerol) were reported (Table 1, entry 1–6), their physicochemical properties were studied and have been reported as attractive catalysts and suitable reaction media for Paal‐ Knorr reaction [40] and Knoevenagel condensation reaction [41] . All synthesized DESs existed as liquid at room temperature and were prepared by trial and error method.…”
Section: Resultsmentioning
confidence: 99%
“…Apart from the studies presenting the Lewis acid type or Brønsted acid type catalyst effect of DESs, Shaibuna et al [103] introduced three new DES types, showing both Lewis acidity and Brønsted type acidity. The authors prepared Type IV DESs that are composed of a metal chloride hydrate that is ZrOCl 2 ⋅8H 2 O (Zr) and used urea, ethylene glycol or glycerol as HBDs.…”
Section: Reactions Catalyzed By Brønsted Acid Type Dessmentioning
confidence: 99%
“…DES catalyzed Paal-Knorr reaction. t t See Shaibuna et al[103] for detailed reaction components and conditions.…”
mentioning
confidence: 99%
“…Due to its easy availability, low costs, moisture stability, and low toxicity, ZrOCl 2 ·8H 2 O is effectively used as a green catalyst in organic reactions, such as synthesis of functionalized piperidine scaffolds, [34] synthesis of 5-amino-1-aryl-1H-tetrazoles, [35] synthesis of bis-β-amino ketones, [36] synthesis of homoallylic alcohols and amines, [37] synthesis of enaminones and enamino esters, [38] synthesis of N-substituted pyrroles, [39] synthesis of α-aminophosphonates, [40] synthesis of 2-substituted benzothiazoles, [41] synthesis of 3,4-dihydropyrimidin-2(1H)-ones, [42] synthesis of 1,8-dioxo-octahydroxanthene, [43] synthesis of imidazolines and bisimidazolines, [44] synthesis of 2-aryloxazolines and bisoxazolines, [45] synthesis of isobenzofuran-1(3H)-ones, [46] synthesis of β-acetamido ketones, [47] synthesis of hexahydroquinoline derivatives, [48] synthesis of αaminonitriles, [49] N-acylation of lactams, [50] synthesis of Nsubstituted pyrrole derivatives. [51] Nowadays, multicomponent reactions (MCRs) have received special attention in organic synthesis as they can produce target products in a single operation without isolating the intermediates and thus reducing the reaction times and energy. [52][53][54][55][56][57][58] In continuation of our interest in finding new environmentally benign methods for the synthesis of various compounds, [59][60][61][62][63][64][65] herein we report for the first time the one-pot three-component synthesis of [1,3]oxazino [5,6c]quinolin-5-one derivatives using ZrOCl 2 ·8H ...…”
Section: Introductionmentioning
confidence: 99%
“…Recently, ZrOCl 2 ·8H 2 O has attracted much attention as catalysts in organic synthesis. Due to its easy availability, low costs, moisture stability, and low toxicity, ZrOCl 2 ·8H 2 O is effectively used as a green catalyst in organic reactions, such as synthesis of functionalized piperidine scaffolds, synthesis of 5‐amino‐1‐aryl‐1H‐tetrazoles, synthesis of bis‐β‐amino ketones, synthesis of homoallylic alcohols and amines, synthesis of enaminones and enamino esters, synthesis of N‐substituted pyrroles, synthesis of α‐aminophosphonates, synthesis of 2‐substituted benzothiazoles, synthesis of 3,4‐dihydropyrimidin‐2(1H)‐ones, synthesis of 1,8‐dioxo‐octahydroxanthene, synthesis of imidazolines and bis‐imidazolines, synthesis of 2‐aryloxazolines and bis‐oxazolines, synthesis of isobenzofuran‐1(3H)‐ones, synthesis of β‐acetamido ketones, synthesis of hexahydroquinoline derivatives, synthesis of α‐aminonitriles, N‐acylation of lactams, synthesis of N‐substituted pyrrole derivatives …”
Section: Introductionmentioning
confidence: 99%