Synthesis and Crystal Structure of 4-Phenyl-5-(1''''t-butyl-5''''-methyl-4''''-pyrazolyl)-1,2,4-triazol-3-thione

COOEtCOCH3(CH3)2NNHNH2NNCH3OOEtNH2NH2NNCH3ONHNH2PhNCSNNCH3ONHNHCNHSOH-NNCH3NNHNPhS12345 1 INTRODUCTION A large number of 1,2,4-triazole derivatives have been synthesized in recent years[1～4]. Many of them are reported to exhibit broad spectrum biologi-…     

Synthesis and Crystal Structure of 4-Phenyl-5-(1′- t-butyl-5′-methyl-4′-pyrazolyl)-1,2,4-triazol-3-thione

The crystal structure of 4-phenyl-5-(1′-t-butyl-5′-methyl-4′-pyrazolyl)-1,2,4-triazol- 3-thione 5 (C16H19N5S, Mr = 313.42) has been determined by single-crystal X-ray diffraction analysis. The crystal belongs to monoclinic, space group P21/c with a = 6.680(2), b = 27.44(1), c = 9.388(4)(A。), β = 106.738(6)°, V = 1648(1)(A。)3, Z = 4, Dc = 1.263 g/cm3, μ= 0.200 mm-1, F(000) = 664, R = 0.0608 and wR = 0.1176. The results confirmed that 5 can be assigned to the thione tautomeric form.     

Synthesis and Crystal Structure of 1-[(1′-Phenyl-5′-methyl-4′-pyrazolcarbonyl)- 3-methylthio-5-amino-1H-yl-1,2,4-triazole

1INTRODUCTIONTheCIDT(N-cyanoimido-S,S-dimethylthiocarbo-nate)hasbeenwidelyutilizedinorganicsynthesisduringthelasttwodecadesandhasbecomeveryusefulforconstructingfunctionalizedheterocyliccom-poundsbecauseoftheirversatility.MuchattentionhasrecentlybeenfocusedonthedevelopmentofCIDTaswellastheirsyntheticapplications[1～4].Meanwhile,manypyrazoleandtriazolederivativesarereportedtoshowvariousbiologicalactivities,suchasantifungal[5],herbicidal[6～8],insectcidal[9]andotheractivities[10～12].Thu…     

Crystal Structure of Trans-2-Amino-3-Cyano-4-(3',4'-Methylenedioxyphenyl)-1-Phenyl-2-Cyclopentene-r-1-ol

1INTRODUCTIONIntheearlyseventiesthreegroupsofinvestigators('--"establishedthatlow--va-lenttitanium,preparedbythereactionofstrongreducingagentsontitaniumtrichlo-rideortitaniumtetrachlorideintetrahydrofuran,canabstractoxygenfromketonesoraldehydes,leadingtotheformationofolefins.Anincreasinginterestinthereac-tioninducedbylow--valenttitaniumreagentsisobservedandalargenumberoffunc-tionalgroupscanbereducedt4--6).However,thereactionoflow-valenttitaniumreagentwith4,4--dicyano--1,3--diaryl--l-butano…     

Structure and Biological Activities of 3-Phenyl-2-[1-benzoyl-1- （1,2,4-triazol-1-yl）] Methenyl Thiazolidine

The title compound 3-phenyl-2-[1-benzoyl-1-(1,2,4-triazol-1-yl)]methenyl thiazolidine was synthesizedfrom acetophenone, triazole, phenylthioisocyanate and 1,2-dibromo-ethane by several step reactions. Itsstructure was identified by means of ^1H NMR, MS and IR spectrometries. The single crystal structure of 3-phenyl-2-[1-benzoyl-1-(1,2,4-triazol-1-yl)]methenyl thiazolidine was determined by X-ray diffraction.The preliminary bioassays have shown that the title compound exhibits the weak activities of fungicide andplant growth regulator.     

Synthesis and Crystal Structure of 3-Phenyi- 6-（4-methylphenyi）-1,2,4-triazolo[4,3-b]-1,2,4-triazine

1 INTRODUCTION The fused heterocycles bearing 1,2,4-triazine have attracted considerable attention in recent years owing to their biological and pharmaceutical activi- ties[1～3]. The 1,2,4-triazine core is a versatile synthe- tic platform to access a wide range of condensed heterocyclic ring systems via inter- and intramolecu- lar Diels-Alder reaction with a vast array of dieno- philes[4～6]. IBD (iodobenzene diacetate) is commer- cially available and used as benign non-metallic oxidant…     

Synthesis of 3-Phenyl-6-formyl-3, 4-dihydro-2H-1, 3-benzoxazine

Benzoxazine is a novel class of thermosetting resins, which possesses lots of outstanding properties such as no by-products and near-zero shrinkage during polymerization as well as good molecular design flexibility1-2. Furthermore, polybenzoxazines (PBZs)…     

Crystal Structure and Spectra Characters of 2-Benzoly-3-(4-(1,2,4-triazole)-5-anilino-thiophene and 2-(4-Methyl-benzoly)-3-(4- chlrolphenyl)-3-(1,2,4-triazole)-5-anilino-thiophene

Triazole derivatives are widely studied, because they represent the largest group of modern fungicides and are widely used both in human and veterinary therapy and in agriculture. We synthesized the title compound in which the thiophene ring was substituted by a 1,2,4-triazole group, a phenacyl group, a phenylaminol group and a benzene ring.     

Synthesis and Crystal Structure of 1-[（1＇-Phenyl-5＇-methyl-4＇-pyrazolcarbonyl）-3-methylthio-5-amino-1Hy l-1,2,4-triazole

The title compound (C14H14N6OS, Mr=314.37) has been synthesized and characterized by IR, ^1H NMR and X-ray single-crystal diffraction techniques.The crystal structure shows the presence of a dimmer with intermolecular N(4)H(4)…N(3) hydrogen bonds.     

Antimicrobial Properties of 4-Aryl-3-(2-methyl-furan-3-yl)-Δ2-1,2,4-triazoline-5-thiones

Four 4-aryl-3-(2-methyl-furan-3-yl)-Δ²-1,2,4-triazole-5-thiones were synthesized by intramolecular cyclization of 4-aryl-1-[(2-methyl-furan-3-yl)carbonyl]thiosemicarbazides in alkaline medium. The antimicrobial activity of the synthesized triazoles was evaluated. Semiempirical calculations of geometries, energies, and QSAR parameters have been determined in the hope of gaining insight into different biological activities of closely related isomers. New RM1 parameterization has been shown to perform very well for this class of compounds.     

Synthesis and Crystal Structure of 2（1-Phenyl-3-methyl-5-chloro-1H-pyrazol-4-yl）-3-（1-naphthoylamido）-4-thiazolidinone

1INTRODUCTIONManypyrazolederivativeshavebeenreportedtoshowvariousbiologicalactivitiestobeusedasbactericide[1],fungicide[2],herbicide[3],insecticide[4]andvirucide[5]agents.Inaddition,4-thiazolidinoneplaysavitalroleowingtoitswiderangeofbiologi-calactivities…     

X-ray Structure of 1- (3' -Phenyl-4' -morpholinyl-2' 5' - dithiole-1' - ylidene)-3, 4-biscarboethoxy-2-thionaphthalene

1INTR0DUCTIONa-Thiocarbonylthioformamideshavebeensynthesizedsince1980[l-23,however,thereisn0reP0rtofthesecomP0undsrelatedtheirpropertiesandreactivities(3).Ac-cordingtothepublishedpapers('-",adithioketone,adithioesterandadithioth-ioesteraresnitablefort4 2JcycloadditionwithalkenicandacetylenicdienophileS.Wewanttoknowwhethera-thiocarbonylthioformamideshavethesamecharacters,thereforethereactionofathiobenzoylthioformmorpholine(1)withdiethylacetylenedicarboxylate(2)wasexplored.Theredultsshowth…     

Crystal Structure and Spectral Characters of 2-（4-Methylbenzoly）-3-（4-chlrolphenyl） -4-（1,2,4-triazole）-5-anilino-thiopene

1 INTRODUCTION The triazole derivatives were widely studied because they represent the largest group of modern fungicides and extensively used in both human and veterinary therapy and in agriculture[1～3]. For exam- ple, there are commercially available …     

Crystal Structure of a Novel Compound： 1-Phenyl-3-ethyl-4-（salicylidene hydrazide）-propenylidene-pyrazolone-5

1 INTRODUCTION 4-Acyl pyrazolones and their derivatives, reported to behave as effective chelating and extracting rea- gents for many metal ions, not only play a key role in coordination compounds with wide applications in several fields, from new materials[1] to catalysts[2] as precursors for CVD in the microe-lectronic Indus- try[3] and as potential antitumourals[4], but also are the focus of research as potential antifungal agro- chemicals and widely used as antiviral, antipyretic anal…     

4-Amino-δ2-1,2,4-oxadiazolines

Reaction of 4-nitrobenzonitrile N-oxide with acetone azine and the dimethylhydrazones of acetone, acetaldehyde, and glyoxal affords the hitherto unknown 4-amino-²-1,2,4-oxadiazolines. The reaction with acetone methylhydrazone also gives a 1,2,4,5-oxatriazine.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 262–264, February, 1991.     

Microwave assisted one-pot tandem three-component synthesis of2,4,5-triary1-2-4-dihydro-3H-1,2,4-triazol-3-one derivatives

This work described a one-pot tandem three-component synthesis of 2,4,5-triaryl-2,4-dihydro-3H- 1,2,4-triazol-3-ones using a simple reaction between phenylhydrazines, benzaldehydes and phenyl isocyanates under microwave irradiation and solvent-free conditions in good to excellent yields.     

A Novel Synthesis of Bis-（1,2,4-triazolyl）-3-disulfides

Manganese triacetate was introduced as a new reagent for radical cyclization of substituted aminothioureas. Bis-（1,2,4-triazolyl）-3-disulfides were generated in 10 min under microwave irradiation.