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    1. Introduction - Hindawi Publishing Corporation

    As precursors for the synthesis of thiazolo[3,2-a]pyrimidines the substituted pyrimidines and aminothiazoles are used. In most of the papers the synthesis of initial pyrimidine-2-thione derivatives is carried out via Biginelli multicomponent condensation reaction of substituted aldehydes with 1,3-dicarbonyl compounds and thiourea [3, 6, 8, 9, 13, 20, 23].

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    Volume 4. Chapter 57. . Exemplified by 6500 up to 8000 m High Summits in High Asia - Evidences of Holocene and History as well as Current Glacial Stages . [N'-(2-Hydroxy-3-Methoxybenzylidene)-4-Methylbenzenesulfonohydrazide]Copper(ıı) (Çiğdem Yüksektepe Atao, Nuray Şenyüz, Feyizan Güntepe, Murat Taş and Hümeyra Bati, Department of .

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    A convenient, accessible, and high yield method for preparing of 6-methyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (1) by treatment of acetoacetic acid ethyl ester with thiourea in sodium methylate was developed. The alkylation of the latter with 3-chloro-pentane-2,4-dione and further regioselective cyclization of intermediate compound (2) in high yield afforded 2-acetyl-3,7-dimethyl-5H .

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    1. Introduction - Hindawi Publishing Corporation

    As precursors for the synthesis of thiazolo[3,2-a]pyrimidines the substituted pyrimidines and aminothiazoles are used. In most of the papers the synthesis of initial pyrimidine-2-thione derivatives is carried out via Biginelli multicomponent condensation reaction of substituted aldehydes with 1,3-dicarbonyl compounds and thiourea [3, 6, 8, 9, 13, 20, 23].

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    Spectroscopic and DFT-based computational studies on the molecular electronic structural characteristics and the third-order nonlinear property of an organic NLO crystal: (E)-N′-(4-chlorobenzylidene)-4-methylbenzenesulfonohydrazide, V.Sasikala, Sajan, Lynnette Joseph,J.Balaji,S.Prabu,P.Srinivasan, Chemical Physics Letters, Volume 674, 16 .

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    Aug 21, 2017· Synthesis, characterization, and antimicrobial evaluation of novel 5-benzoyl-N-substituted amino- and 5-benzoyl-N-sulfonylamino-4-alkylsulfanyl-2-pyridones Galal Elgemeie,1 Farag Altalbawy,2,3 Mohammed Alfaidi,3 Rania Azab,2,4 Atef Hassan5 1Department of Chemistry, Faculty of Science, Helwan University, Helwan, 2National Institute of Laser Enhanced Sciences (NILES), Cairo …

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    Jan 03, 2019· Our studies began by examining the reaction of 4-methoxystyrene (1a) with 4-methylbenzenesulfonohydrazide (2a, TsNHNH 2) utilizing TBHP (70% in water) as oxidant on water at room temperature under air. Unfortunately, no desired product 1-methoxy-4-(2-tosylvinyl)benzene (3aa) was detected in the reaction mixture (Table 1, entry 1).

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    4-methylbenzenesulfonohydrazide, CAS Number: 344295-58-5

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    N'-(2,4-DIHYDROXYBENZYLIDENE)-4 .

    R709662 - N'-(2,4-DIHYDROXYBENZYLIDENE)-4-METHYLBENZENESULFONOHYDRAZIDE EMAIL THIS PAGE TO A FRIEND. To Email: From Email: Message: R709662 N'-(2,4-DIHYDROXYBENZYLIDENE)-4-METHYLBENZENESULFONOHYDRAZIDE Aldrich CPR. CAS Number 281211-72-1. Linear Formula C 14 H 14 N 2 O 4 S . Molecular Weight 306.343 . MDL number .

    Rapid Synthesis of N‐Tosylhydrazones under Solvent‐Free .

    Nov 21, 2018· A mixture of aromatic aldehyde (ketone) (1 mmol) and 4‐methylbenzenesulfonohydrazide (1 mmol) was thoroughly mixed in a mortar and ground manually with a pestle until the completion of the reaction as indicated by thin‐layer chromatography (TLC; 1 min). The resultant material was washed with petroleum ether and filtered to give the desired .

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    Siddiqa et al Trop J Pharm Res, October 2014; 13(10): 1691 Scheme 1: Outline for synthesis of 2-(1,3-benzodioxol-5-ylcarbonyl)arylsulfonohydrazide derivatives (5a-l) RESULTS Ethyl 1,3 A new series of sulfonamides was synthesized from a facile method 10by scheme 1.

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    4-Methylbenzolsulfo nohydrazid [German] [ACD/IUPAC Name] 4-Toluenesulphonyl hydrazide Benzenesulfonic aci d, 4-methyl-, hydra zide [ACD/Index Name]

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