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Molbank, Volume 2005, Issue 4 (October 2005) – 10 articles

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Short Note
Molbank 2005, 2005(4), M440; - 01 Oct 2005
Viewed by 3376
Macrocyclic chemistry is one of the fastest growing fields in chemistry.[...] Full article
Short Note
Asymmetric Synthesis of a New Monocyclic β-Lactam as a potential biological active compound
Molbank 2005, 2005(4), M439; - 01 Oct 2005
Cited by 1 | Viewed by 2170
The asymmetric synthesis of monocyclic β-lactams belong to five categories: a) asymmetric induction from the imine component; b) asymmetric induction from the ketene component; c) double stereodifferentiating cycloadditions; d) carbacephem intermediates and e) 2-oxaisocephems and 2-isocephems.[...] Full article
Short Note
Synthesis of (4-chlorobenzylidene)-(2-chloropyridi-3-yl)amine
Molbank 2005, 2005(4), M438; - 01 Oct 2005
Viewed by 2281
Schiff bases are widely in use for synthetic purposes both by organic and inorganic chemists.[...] Full article
Short Note
Synthesis of 3,3´-[methylenebis(3,1-phenylenenitrilo)]bis[1,3-dihydro]-2H-indol-2-one as a novel bis-Schiff base
Molbank 2005, 2005(4), M437; - 01 Oct 2005
Cited by 14 | Viewed by 3109
Isatin (1H-indole-2,3-dione) was first obtained by Erdman and Laurent in 1841 as a product from the oxidation of indigo by nitric and chromic acids [1].[...] Full article
Short Note
Synthesis of N-(2-hydroxy-3-methoxybenzylidene) - 2, 3, 4, 6-tetra-O-acetyl -β-D galactopyranosylamine as a new chiral Schiff base for asymmetric [2+2] cycloadditions
Molbank 2005, 2005(4), M436; - 01 Oct 2005
Viewed by 2596
The importance of carbohydrates for asymmetric synthesis is well recognized [1,2,3,4].[...] Full article
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Synthesis of β-D galactopyranosyl amino-(N-salicylidene) - 2, 3, 4, 6-tetra-O-acetate as a new chiral Schiff base for asymmetric transformations
Molbank 2005, 2005(4), M435; - 01 Oct 2005
Viewed by 2598
Carbohydrates constitute a class of inexpensive natural products of high chiral content [1].[...] Full article
Short Note
Semicarbazone and Thiosemicarbazone of 5-acetyl-3-(methylsulfanyl)-1,2,4-triazine
Molbank 2005, 2005(4), M434; - 01 Oct 2005
Cited by 1 | Viewed by 2473
Semicarbazone as well as thiosemicarbazone of 5-acetyl-3-(methylsulfanyl)-1,2,4-triazine were synthesised as reactive intermediates for the synthesis of 1H-pyrazolo[4,3-e][1,2,4]triazine derivatives via acid promoted ring closure [1,2,3].[...] Full article
Short Note
3-Nitropyridin-2-yl hydrazone of 5-Acetyl-3-phenyl-1,2,4-triazine
Molbank 2005, 2005(4), M433; - 01 Oct 2005
Cited by 1 | Viewed by 2250
In continuation of previous work on the polyfunctionally substituted 1H-pyrazolo[4,3-e][1,2,4]triazine [1,2] we have reported here preparation of 3-nitropyridin-2-yl hydrazone of 5-acetyl-3-phenyl-1,2,4-triazine 3 being valuable intermediate for the synthesis of nitro derivative of this ring system.[...] Full article
Short Note
3-Bromomethyl-1,5-diphenyl-1H-pyrazolo[4,3-e][1,2,4]triazine and 3-Dibromomethyl-1,5-diphenyl-1H-pyrazolo[4,3-e][1,2,4]triazine
Molbank 2005, 2005(4), M432; - 01 Oct 2005
Viewed by 2243
As part of our research programme we have synthesized the title compounds as valuable intermediates for the preparation of acyclonucleosides-biologically active molecules.[...] Full article
Short Note
Molbank 2005, 2005(4), M431; - 01 Oct 2005
Viewed by 2276
O- and N-alkyl derivatives of pyrazolo[4,3-e][1,2,4]triazine, isolated from the cultural fluids of Pseudomonas fluorescens and Nostoc spongiaeforme exhibit antimicrobial and antitumor activity [1,2].[...] Full article
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