Search Results - "Debache, Abdelmadjid"
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[DMImd-DMP]: A highly efficient and reusable catalyst for the synthesis of 4H-benzo[b]pyran derivatives
Published in Heterocyclic Communications (31-12-2019)“…A series of substituted 4H-pyrans derivatives were synthesized by a one-pot, multi-component reaction of aromatic aldehydes, malononitrile, and pyrazolone…”
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Crystal structure and Hirshfeld surface analysis of N -[(2-hydroxynaphthalen-1-yl)(3-methylphenyl)methyl]acetamide. Corrigendum
Published in Acta crystallographica. Section E, Crystallographic communications (01-08-2022)“…In the paper by Boudebbous et al. [ Acta Cryst. (2018), E 74 , 1002–1005], there is an error in the name of the second author…”
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3
Phenylboronic acid as a mild and efficient catalyst for Biginelli reaction
Published in Tetrahedron letters (07-08-2006)“…The synthesis of 3,4-dihydropyrimidinone derivatives was achieved in good to excellent yields using phenylboronic acid as catalyst to promote the Biginelli…”
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Crystal structure and Hirshfeld surface analysis of ( Z )-4-(4-hydroxybenzylidene)-3-methylisoxazol-5(4 H )-one. Corrigendum
Published in Acta crystallographica. Section E, Crystallographic communications (01-08-2022)“…In the paper by Zemamouche et al. [ Acta Cryst. (2018), E 74 , 926–930], there is an error in the name of the first author…”
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5
Structural study and Hirshfeld surface analysis of ( Z )-4-(2-methoxybenzylidene)-3-phenylisoxazol-5(4 H )-one
Published in Acta crystallographica. Section E, Crystallographic communications (01-05-2021)“…The title compound, C 17 H 13 NO 3 , adopts a Z configuration about the C=C bond. The isoxazole and methoxybenzylidene rings are almost coplanar with a…”
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Crystal structure and Hirshfeld surface analysis of ( Z )-3-methyl-4-(thio-phen-2-yl-methyl-idene)isoxazol-5(4 H )-one
Published in Acta crystallographica. Section E, Crystallographic communications (01-04-2021)“…The title compound, C H NO S crystallizes with two independent mol-ecules ( and ) in the asymmetric unit with = 8. Both mol-ecules are almost planar with a…”
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7
Crystal structure and Hirshfeld surface analysis of N -[(2-hy-droxy-naphthalen-1-yl)(3-methyl-phen-yl)meth-yl]acetamide
Published in Acta crystallographica. Section E, Crystallographic communications (01-07-2018)“…The title compound, C H NO , is of inter-est as a precursor to biologically active substituted quinolines and related compounds. This compound crystallizes…”
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8
Crystal structure and Hirshfeld surface analysis of ( Z )-4-(4-hydroxybenzylidene)-3-methylisoxazol-5(4 H )-one
Published in Acta crystallographica. Section E, Crystallographic communications (01-07-2018)“…The title compound, C 11 H 9 NO 3 , contains an isoxazole and a hydroxybenzylidene ring, which are inclined to each another by 3.18 (8)°. There is an…”
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4-(2-Nitrobenzyl)-3-phenyl-3,4-dihydro-2H-1,4-benzoxazin-2-ol
Published in Acta crystallographica. Section E, Structure reports online (01-08-2014)“…The title compound, C21H18N2O4, crystallizes with two independent molecules (A and B) in the asymmetric unit. In both molecules the oxazine ring has an…”
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10
2-(4-Chlorophenyl)-4-phenyl-1,2-dihydroquinazoline
Published in Acta crystallographica. Section E, Structure reports online (01-11-2013)“…In the title compound, C 20 H 15 ClN 2 , the pyrimidine ring is in a flattened half-chair conformation. The phenyl and chloro-substituted benzene rings form…”
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11
Synthesis of Some New 1,4-Dihydropyridine Derivatives through a Facile One-pot Hantzsch Condensation Catalyzed by Triethylamine
Published in Chinese journal of chemistry (01-03-2012)“…A facile and efficient synthesis of new 1,4-dihydropyridine derivatives was reported via Hantzsch three-com- ponent condensation reaction of aldehydes or…”
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12
New eco-friendly procedure for the synthesis of 4-arylmethylene-isoxazol-5(4H)-ones catalyzed by pyridinium p-toluenesulfonate (PPTS) in aqueous medium
Published in Synthetic communications (18-07-2018)“…In this work we describe a new, highly efficient method for the synthesis of 3-methyl-4-arylmethylidene-isoxazol-5(4H)-one derivatives by a three-component…”
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13
N -[(2-Chloro-8-methylquinolin-3-yl)methyl]-4-methoxyaniline
Published in Acta crystallographica. Section E, Structure reports online (01-11-2010)“…In the title compound, C18H17ClN2O, the quinoline ring system is essentially planar; the r.m.s. deviation for the non-H atoms is 0.04 Å with a maximum…”
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14
Gypsum-Catalyzed One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H) Under Solvent-Free Conditions
Published in E-journal of chemistry (01-01-2011)“…In view of the emerging importance of the green chemistry principles in chemical and pharmaceutical industries, we disclose, herein, a new economic approach…”
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An Efficient and Recycling Catalyst for the One-Pot Three-Component Synthesis of Substituted 3,4-Dihydropyrimidin-2(1H)-ones
Published in E-journal of chemistry (2008)“…The Biginelli one-pot three-component cyclocondensation was applied in this work to prepare 3,4-dihydropyrimidinone and its analogues using the first…”
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16
Synthesis and radical scavenging activity of new phenolic hydrazone/hydrazide derivatives: Experimental and theoretical studies
Published in Journal of molecular structure (05-02-2022)“…•A series of new phenolic hydrazone/hydrazide derivatives has been synthesized.•The hydrazones are better radical scavengers than the hydrazone-hydrazide…”
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Ethyl 4-(2-chloroquinolin-3-yl)-1-phenyl-1H-pyrrole-3-carboxylate
Published in Acta crystallographica. Section E, Structure reports online (01-11-2008)“…In the molecule of the title compound, C22H17ClN2O2, the dihedral angles formed by the pyrrole ring with the quinoline and phenyl rings are 67.93 (8) and 28.40…”
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A New One-pot Synthesis of 4-Arylideneisoxazolones Catalyzed by Na2SO3 in an Aqueous Medium
Published in Organic preparations and procedures international (02-09-2024)Get full text
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A New One-pot Synthesis of 4-Arylideneisoxazolones Catalyzed by Na 2 SO 3 in an Aqueous Medium
Published in Organic preparations and procedures international (02-09-2024)Get full text
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A one-pot Biginelli synthesis of 3,4-dihydropyrimidin-2-(1 H)-ones/thiones catalyzed by triphenylphosphine as Lewis base
Published in Tetrahedron letters (13-10-2008)“…We report herein the use of triphenylphosphine (TPP) as a new catalyst for the one-pot Biginelli reaction coupling of β-ketoesters, aldehydes and urea (or…”
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