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Volume 2004, November

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Molbank, Volume 2004, Issue 1 (February 2004) – 40 articles

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(Z)-3-(2-Nitrophenyl)-2-(4-methylphenyl)acrylonitrile
Molbank 2004, 2004(1), M392; https://doi.org/10.3390/M392 - 29 Mar 2004
Viewed by 2297
Abstract
(2Z)-3-(2-Nitrophenyl)-2-(4-methylphenyl)acrylonitrile (3) was prepared by Knoevenagel condensation of 2-nitrobenzaldehyde 1 and 4-methylphenylacetonitrile 2 in ethanol using KOH as a base [1,2].[...] Full article
Open AccessShort Note
N-Furan-2-ylmethyl-4-methyl-benzenesulfonamide (N-Furfuryl-p-toluenesulfonamide)
Molbank 2004, 2004(1), M391; https://doi.org/10.3390/M391 - 29 Mar 2004
Viewed by 1556
Abstract
A solution of furfurylamine[1] (9.77 g, 100 mmol) in tert-butylmethyl ether[2] (MTBE, 50 mL) was made in a 250-mL four-necked flask, fitted with two dropping funnels and an immersion thermometer, and cooled in an ice/salt bath to -15 °C.[...] Full article
Open AccessShort Note
1-Benzyloxymethyl-2,2,4,4-tetrachloro-8-oxabicyclo[3.2.1]oct-6-en-3-one
Molbank 2004, 2004(1), M390; https://doi.org/10.3390/M390 - 29 Mar 2004
Cited by 1 | Viewed by 1486
Abstract
A mixture of 2-benzyloxymethylfuran[1] (1.88 g, 10 mmol) and pentachloroacetone[2] (2.30 g, 10 mmol) was cooled in an ice bath.[...] Full article
Open AccessShort Note
endo-N-(5,5-Dimethyl-6-methylene-bicyclo[2.2.1]hept-2-yl)-4-methyl-benzenesulfonamide
Molbank 2004, 2004(1), M389; https://doi.org/10.3390/M389 - 29 Mar 2004
Viewed by 1922
Abstract
p-Toluenesulfonic acid (35 mg, 0.20 mmol) was added to a stirred mixture of campholenic aldehyde (1) (725 mg, 3.81 mmol) and p-toluenesulfonamide (1.22 g, 6.96 mmol) in toluene (20 mL).[...] Full article
Open AccessShort Note
(E)-6-(2,2,3-Trimethyl-cyclopent-3-enyl)-hex-4-en-3-one
Molbank 2004, 2004(1), M388; https://doi.org/10.3390/M388 - 29 Mar 2004
Cited by 1 | Viewed by 2269
Abstract
Ethyl 2-methylacetoacetate (2) (727 mg, 4.53 mmol) was added to a stirred solution of NaH (184 mg, 4.60 mmol) in dioxane (25 mL).[...] Full article
Open AccessShort Note
2-(1-Bromo-1-methyl-ethyl)-2-methyl-[1,3]dioxolane
Molbank 2004, 2004(1), M387; https://doi.org/10.3390/M387 - 29 Mar 2004
Viewed by 1851
Abstract
A solution of bromine (0.3 mL, 5.90 mmol) in CCl4 (2 mL) was slowly added over a stirred mixture of 3-methyl-butan-2-one (1) (505 mg, 5.90 mmol) and AcOH (0.33 mL) at room temperature.[...] Full article
Open AccessShort Note
7,10-Diazafluoranthene (Acenaphtho[1,2-b]pyrazine)
Molbank 2004, 2004(1), M386; https://doi.org/10.3390/M386 - 29 Mar 2004
Viewed by 1457
Abstract
7,10-Diazafluoranthene has been reported to be strongly mutagenic in an Ames-test [1], but no details regarding neither the synthesis nor other properties have been published.[...] Full article
Open AccessShort Note
3-methyl-1-[3-(3-methyl-2-oxobutylidene)-1,4-dihydro-6-nitro-quinoxalin-2-ylidene]butan-2-one.
Molbank 2004, 2004(1), M385; https://doi.org/10.3390/M385 - 29 Mar 2004
Viewed by 2570
Abstract
To a solution of 3,8-dihydroxy-2,9-dimethyl deca-3,7-diene-5,6-dione 2 [1] (1.278 g, 5.6 mmol) in absolute ethanol (20 mL) was added the 4-nitro-orthophenylenediamine 1 (0.865 g, 5.6 mmol) and the mixture was refluxed for 2 hours [2].[...] Full article
Open AccessShort Note
3-methyl-1-[3-(3-methyl-2-oxobutylidene)-1,4-dihydro-6-methyl-quinoxalin-2-ylidene]butan-2-one.
Molbank 2004, 2004(1), M384; https://doi.org/10.3390/M384 - 29 Mar 2004
Viewed by 2549
Abstract
To a solution of 3,8-dihydroxy-2,9-dimethyl deca-3,7-diene-5,6-dione 2 [1] (452 g, 2 mmol) in absolute ethanol (15 mL) was added the 4-methylorthophenylenediamine 1 (244 mg, 2 mmol) and the mixture was refluxed for 90 min [2].[...] Full article
Open AccessShort Note
3-methyl-1-[3-(3-methyl-2-oxobutylidene)-1,4-dihydro-quinoxalin-2-ylidene]butan-2-one.
Molbank 2004, 2004(1), M383; https://doi.org/10.3390/M383 - 29 Mar 2004
Viewed by 2840
Abstract
To a solution of 3,8-dihydroxy-2,9-dimethyl deca-3,7-diene-5,6-dione 2 [1] (270 mg, 1.2 mmol) in absolute ethanol (20 mL) was added the orthophenylenediamine 1 (129 mg, 1.2 mmol) and the mixture was refluxed for one hour [2].[...] Full article
Open AccessShort Note
A furocoumarin, Imperatorin isolated from Urena lobata L. (Malvaceae)
Molbank 2004, 2004(1), M382; https://doi.org/10.3390/M382 - 29 Mar 2004
Cited by 3 | Viewed by 1701
Abstract
The plant, Urena lobata L. (Malvaceae) is reputed for its use in indigenous system of medicine.[...] Full article
Open AccessShort Note
{6-[(4-Methoxybenzoyl)amino]-9H-purin-9-yl}acetic acid
Molbank 2004, 2004(1), M381; https://doi.org/10.3390/M381 - 29 Mar 2004
Viewed by 1585
Abstract
{6-[(4-Methoxybenzoyl)amino]-9H-purin-9-yl}acetic acid 2 is one of the substances used in the synthesis of peptide nucleic acid (PNA) adenine monomer and oligomers as well.[...] Full article
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2,2,2-Trichloro-1,1-dimethylethyl 4-tert-butylbenzoate
Molbank 2004, 2004(1), M380; https://doi.org/10.3390/M380 - 29 Mar 2004
Viewed by 1700
Abstract
In our previous work we have demonstrated the utility of the 2,2,2-trichloro-1,1-dimethylethyl (b,b,b-trichloro-tert-butyl, Tcb) group for the protection of carboxylic acids [1].[...] Full article
Open AccessShort Note
2,2,2-Trichloro-1,1-dimethylethyl 4-methylbenzoate
Molbank 2004, 2004(1), M379; https://doi.org/10.3390/M379 - 29 Mar 2004
Viewed by 1582
Abstract
In our previous work we have demonstrated the utility of the 2,2,2-trichloro-1,1-dimethylethyl (β,β,β-trichloro-tert-butyl, Tcb) group for the protection of carboxylic acids [1].[...] Full article
Open AccessShort Note
2,2,2-Trichloro-1,1-dimethylethyl bromoacetate
Molbank 2004, 2004(1), M378; https://doi.org/10.3390/M378 - 29 Mar 2004
Viewed by 1672
Abstract
In our previous work we have demonstrated the utility of the 2,2,2-trichloro-1,1-dimethylethyl (b, b, b-trichloro-tert-butyl, Tcb) group for the protection of carboxylic acids [1].[...] Full article
Open AccessShort Note
Synthesis of novel azo Schiff base bis[5-(4-methoxyphenylazo)-2-hydroxy -3-methoxy benzaldehyde]-1,2-phenylene diimine
Molbank 2004, 2004(1), M377; https://doi.org/10.3390/M377 - 24 Feb 2004
Cited by 6 | Viewed by 1992
Abstract
Schiff bases are a class of important compounds in medicinal and pharmaceutical field.[...] Full article
Open AccessShort Note
Synthesis of (3,4-bis{[2-hydroxy-3-methoxy-5-(4-methylphenyl azo)benzylidene]-amino}phenyl) phenyl methanone as a novel azo Schiff base
Molbank 2004, 2004(1), M376; https://doi.org/10.3390/M376 - 24 Feb 2004
Viewed by 1323
Abstract
Schiff bases are used as substrates in the preparation of a large of bioactive and industrial compounds via ring closure, cycloaddition, replacement reactions, etc [1].[...] Full article
Open AccessShort Note
2’-(3’’,4’’-Methylenedioxyphenyl)-imidazo[4’,5’-f]-2,9-dimethyl-1,10-phenanthroline
Molbank 2004, 2004(1), M375; https://doi.org/10.3390/M375 - 24 Feb 2004
Viewed by 1983
Abstract
2,9-dimethyl-1,10-phenanthroline-5,6-dione was synthesized by the procedure for the preparation of 1,10-phenanthroline-5,6-dione [1].[...] Full article
Open AccessShort Note
Synthesis of {3,4-bis-[(2-hydroxy-3-methoxy benzylidene)amino] phenyl}phenyl methanone as a new salen derivative
Molbank 2004, 2004(1), M374; https://doi.org/10.3390/M374 - 24 Feb 2004
Cited by 1 | Viewed by 1548
Abstract
Benzophenone derivatives are reported to show biological activities such as cytotoxic activities against human oral squarnous carcinoma cells (HSC-2) and normal human gingival fibroblasts (HGF) [1], antibiotic activities against methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus faecium [2] and protein kinase C inhibitor [3].[...] [...] Read more.
Benzophenone derivatives are reported to show biological activities such as cytotoxic activities against human oral squarnous carcinoma cells (HSC-2) and normal human gingival fibroblasts (HGF) [1], antibiotic activities against methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococcus faecium [2] and protein kinase C inhibitor [3].[...] Full article
Open AccessShort Note
Synthesis of 2-methoxy-6-(pyrazin-2-ylimino methyl) phenol and its antibacterial activitity
Molbank 2004, 2004(1), M373; https://doi.org/10.3390/M373 - 24 Feb 2004
Cited by 1 | Viewed by 1618
Abstract
Pyrazines are found in such heated foods as bread, different meats, baked potatoes and coffee [1], which are formed from serine and thereonine [2].[...] Full article
Open AccessShort Note
3,3’-Bis(N,N-dimethylamino)-5,5’-bi-1,2,4-triazine and 6,6’-dibromo-3,3’-bis(N,N-dimethylamino)-5,5’-bi-1,2,4-triazine
Molbank 2004, 2004(1), M372; https://doi.org/10.3390/M372 - 24 Feb 2004
Cited by 2 | Viewed by 1501
Abstract
Continuing our study on the application of 1,2,4-triazines in organic synthesis [1] we prepared the title compounds as valuable intermediates for metalation reactions leading to functionalized 5,5’-bi-1,2,4-triazines [2].[...] Full article
Open AccessShort Note
Synthesis of 2-hydroxy-3-methoxy-5-(4-methoxyphenylazo) benzaldehyde. A new aldehyde for the preparation of biologically active molecules.
Molbank 2004, 2004(1), M371; https://doi.org/10.3390/M371 - 24 Feb 2004
Cited by 2 | Viewed by 1550
Abstract
Diazo compounds have interesting biological activities [1,2,3,4].[...] Full article
Open AccessShort Note
2-{bis[(1,5-dimethyl-1H-pyrazol-3-yl)methyl]amino}ethanol
Molbank 2004, 2004(1), M370; https://doi.org/10.3390/M370 - 24 Feb 2004
Cited by 1 | Viewed by 2444
Abstract
To a mixture of 3-chloromethyl-1,5-dimethylpyrazole 1 [1] (6g, 41mmol) and sodium carbonate (17g, 160mmol) in 150 mL of acetonitrile was added slowly 2-aminoethanol 2 (1.25g, 20.5 mmol).[...] Full article
Open AccessShort Note
1-(4-{[(3,5-dimethyl-1H-pyrazol-1-yl)methyl] amino} phenyl) ethanone
Molbank 2004, 2004(1), M369; https://doi.org/10.3390/M369 - 24 Feb 2004
Cited by 2 | Viewed by 2452
Abstract
A mixture of (3,5-dimethyl-1H-pyrazol-1-yl)methanol 1 [1] (1.86 g, 14.8 mmol) and 4-amino-acetophenone 2 (1g, 7.4 mmol) in acetonitrile (50 mL) was stirred in a closed vessel at room temperature for 6 days [2,3,4].[...] Full article
Open AccessShort Note
4-{[(3,5-dimethyl-1H-pyrazol-1-yl)methyl]amino}benzoic acid
Molbank 2004, 2004(1), M368; https://doi.org/10.3390/M368 - 24 Feb 2004
Viewed by 2468
Abstract
A mixture of (3,5-dimethyl-1H-pyrazol-1-yl)methanol 1 [1] (1.84 g, 14.6 mmol) and 4-aminobenzoic acid 2 (1g, 7.3 mmol) in acetonitrile (50 mL) was stirred in a closed vessel at room temperature for 6 days [2,3,4].[...] Full article
Open AccessShort Note
Bis-(1-phenyl-5-nitro-6-methylthio-1,2,3,4-tetrahydropyrimidinyl)ethane and Bis-(1-phenyl-5-nitro-6-methylthio-1,2,3,4-tetrahydropyrimidinyl)butane
Molbank 2004, 2004(1), M367; https://doi.org/10.3390/M367 - 24 Feb 2004
Cited by 3 | Viewed by 1644
Abstract
5-Nitro-1,2,3,4-tetrahydropyrimidine derivatives [1, 2] are known to possess important biological properties.[...] Full article
Open AccessShort Note
(3S)-Tosyl-24-methyl-elemo-lanosta-8,24(31)-diene-7,11-dione
Molbank 2004, 2004(1), M366; https://doi.org/10.3390/M366 - 24 Feb 2004
Cited by 2 | Viewed by 1857
Abstract
To a solution of 11 (1g, 1.68mmol) in 20ml of acetone, was added (0.50g, 0.85mmol) of chromic anhydride2.[...] Full article
Open AccessShort Note
Synthesis of (2-Chloropyridine-3-yl)-(4-nitrobenzylidene) amine and its antibacterial activity
Molbank 2004, 2004(1), M364; https://doi.org/10.3390/M364 - 24 Feb 2004
Viewed by 1532
Abstract
Schiff bases are reported to show a variety of biological activities such as antibacterial [1,2,3], antifungal [4,5], anticancer [6,7] and herbicidal [8] activities.[...] Full article
Open AccessShort Note
Ethyl 6-formyl-8-methoxy-2-oxo-2H-chromene-4-carboxylate
Molbank 2004, 2004(1), M363; https://doi.org/10.3390/M363 - 24 Feb 2004
Viewed by 2184
Abstract
A mixture of vanillin 1 ( 0.5g, 3.3mmol) and triphenylphosphine ( 0.86g, 3.3mmol) was dissolved in CH2Cl2.[...] Full article
Open AccessShort Note
Methyl 6-formyl-8-methoxy-2-oxo-2H-chromene-4-carboxylate
Molbank 2004, 2004(1), M362; https://doi.org/10.3390/M362 - 24 Feb 2004
Viewed by 2169
Abstract
A mixture of Vanillin 1 (0.5 g, 3.3 mmol) and triphenylphosphine (0.86 g, 3.3 mmol) was dissolved in CH2Cl2.[...] Full article
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