242 results on '"MALEK A"'
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2. Green and catalyst-free synthesis of aminoanthraquinone derivatives in solvent-free conditions
3. Synthesis, characterization, and application of CoFe2O4@TRIS@sulfated boric acid nanocatalyst for the synthesis of 2-amino-3-cyanopyridine derivatives
4. Fe3O4@THAM-piperazine: a novel and highly reusable nanocatalyst for one-pot synthesis of 1,8-dioxo-octahydro-xanthenes and benzopyrans
5. Preparation and characterization of MNPs–PhSO3H as a heterogeneous catalyst for the synthesis of benzo[b]pyran and pyrano[3,2-c]chromenes
6. Synthesis of 3-aminoisoxazolmethylnaphthols via one-pot three-component reaction under solvent-free conditions
7. Et3N catalyzed the diastereoselective synthesis of functionalized cyclohexanones by condensation of acetoacetanilide and various aldehydes in mild conditions
8. Two stereoisomers of butenedioic acid-mediated synthesis of tetrahydropyridine carboxylate derivatives with the same stereochemistry
9. Novel (4-oxothiazolidine-2-ylidene)benzamide derivatives: synthesis, characterization and crystal structures
10. Chitosan: a sustainable, reusable and biodegradable organocatalyst for green synthesis of 1,4-dihydropyridine derivatives under solvent-free condition
11. Introduction of antimony triiodide (SbI3) as a new and efficient catalyst for synthesis of polyfunctionalized piperidines
12. Copper(II) acetate monohydrate: an efficient and eco-friendly catalyst for the one-pot multi-component synthesis of biologically active spiropyrans and 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives under solvent-free conditions
13. Synthesis and characterization of a novel and reusable Fe3O4@THAM-CH2CH2-SCH2CO2H magnetic nanocatalyst for highly efficient preparation of xanthenes and 3-aminoisoxazoles in green conditions
14. Green and catalyst-free synthesis of aminoanthraquinone derivatives in solvent-free conditions
15. A green and efficient four-component sequential protocol for the synthesis of novel 16-(aryl)benzo[a]indeno[2′,1′:5,6]pyrano[2,3-c]phenazin-15(16H)-one derivatives using oxalic acid as a reusable and cost-effective organic catalyst
16. Green protocol for synthesis of 2,3-dihydroquinazolin-4(1H)-ones: lactic acid as catalyst under solvent-free condition
17. A rapid and efficient domino protocol for the synthesis of functionalized benzo[a]pyrano[2,3-c]phenazine and benzo[f]pyrano[2,3-h]quinoxaline derivatives
18. PTSA-catalyzed four-component domino reactions for the one-pot synthesis of functionalized 11H-benzo[a]benzo[6,7]chromeno[2,3-c]phenazine-11,16(17H)-diones in PEG
19. ZrCl4 as an efficient catalyst for one-pot four-component synthesis of polysubstituted dihydropyrrol-2-ones
20. Acetic acid-promoted eco-friendly one-pot pseudo six-component synthesis of bis-spiro-substituted piperidines
21. Sodium carbonate-catalyzed Claisen–Schmidt condensation: one-pot synthesis of highly functionalized cyclohexenones under environmental conditions
22. An efficient four-component domino protocol for the rapid and green synthesis of functionalized benzo[a]pyrano[2,3-c]phenazine derivatives using caffeine as a homogeneous catalyst
23. Citric acid, a green catalyst for the one-pot, multi-component synthesis of highly substituted piperidines
24. Synthesis, characterization, and application of CoFe2O4@TRIS@sulfated boric acid nanocatalyst for the synthesis of 2-amino-3-cyanopyridine derivatives
25. Tartaric acid: a natural, green and highly efficient catalyst for the one-pot synthesis of functionalized piperidines
26. A green and efficient one-pot three-component synthesis of dihydropyrano[3,2-c]chromenes using NaCl in hydroalcoholic media
27. Agar: a novel, efficient, and biodegradable catalyst for the one-pot three-component and green synthesis of 2,3-dihydroquinazolin-4(1H)-one, 4H-pyrimidobenzothiazole and 2-aminobenzothiazolomethylnaphthol derivatives
28. Saccharose as a new, natural, and highly efficient catalyst for the one-pot synthesis of 4,5-dihydropyrano[3,2-c]chromenes, 2-amino-3-cyano-4H-chromenes, 1,8-dioxodecahydroacridine, and 2-substituted benzimidazole derivatives
29. Starch solution as an efficient and environment-friendly catalyst for one-pot synthesis of β-aminoketones and 2,3-dihydroquinazolin-4(1H)-ones in EtOH
30. Solvent-free synthesis of 1-(benzothiazolylamino)methyl-2-naphthols with maltose as green catalyst
31. Acidic ionic liquid N-methyl 2-pyrrolidonium hydrogen sulfate as an efficient catalyst for the one-pot multicomponent preparation of 3,4,5-substituted furan-2(5H)-ones
32. A facile and efficient synthesis of tetrahydrobenzo[b]pyrans using lactose as a green catalyst
33. Full kinetics and a mechanistic investigation of three-component reaction catalyzed by sodium acetate leading to 3,4-dihydropyrano[c]chromene
34. Ecofriendly and efficient multicomponent method for preparation of 1-amidoalkyl-2-naphthols using maltose under solvent-free conditions
35. Acetic acid as an efficient catalyst for synthesis of 1,8-dioxo-octahydroxanthenes and 1,8-dioxo-decahydroacridines
36. Dynamic 1H NMR studies around the heteroaryl–carbon (NC=CH) single bonds in a particular enaminoester involving a phenanthridine along with theoretical calculations
37. Synthesis of maleate derivatives in isocyanide-base MCRs: reaction of 2-mercaptobenzoxazole with alkyl isocyanides and dialkyl acetylenedicarboxylates
38. Green synthesis of 1,4-dihydropyrano[2,3-c]pyrazole derivatives using maltose as biodegradable catalyst
39. Efficient and extremely facile one-pot four-component synthesis of mono and bis-N-aryl/alkyl-3-aminodihydropyrrol-2-one-4-carboxylates catalyzed by p-TsOH·H2O
40. An efficient one-pot synthesis of C-alkylated phenols and benzofuran derivatives with phosphanylidene substituents
41. ZrCl4 as an efficient catalyst for one-pot synthesis of highly functionalized piperidines via multi-component organic reactions
42. Potassium sodium tartrate as a versatile and efficient catalyst for the one-pot synthesis of pyran annulated heterocyclic compounds in aqueous media
43. Fe3O4@THAM-piperazine: a novel and highly reusable nanocatalyst for one-pot synthesis of 1,8-dioxo-octahydro-xanthenes and benzopyrans
44. Preparation and characterization of MNPs–PhSO3H as a heterogeneous catalyst for the synthesis of benzo[b]pyran and pyrano[3,2-c]chromenes
45. Determination of the relative stability of the two gauche and anti-configurations in the synthesis of new β-aminophosphonate esters: theoretical studies
46. 1H NMR spectroscopic investigation of the kinetics of the equilibrium between Z and E isomers
47. A green protocol for one-pot three-component synthesis of α-amino phosphonates catalyzed by succinic acid
48. A novel one-pot synthesis of symmetric dialkyl 2,5-bis((2,6-dimethylphenyl)imino)-2,5-dihydrofuran-3,4-dicarboxylate derivatives
49. Tridentate bipyrazole compounds with a side-arm as a new class of antitumor agents
50. Trityl chloride as an efficient organic catalyst for one-pot, five-component and diastereoselective synthesis of highly substituted piperidines
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