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Volume 2006, February

Molbank, Volume 2006, Issue 3 (March 2006) – 5 articles

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120 KiB  
Short Note
Synthesis of 5,5-diphenyl-3-(methylthiomethyl)hydantoin and 5,5-diphenyl-3-(methysulfonylomethyl)hydantoin
by Maria Grzegożek, Krystyna Nowak and Barbara Szpakiewicz
Molbank 2006, 2006(3), M480; - 31 Mar 2006
Viewed by 3531
In view of potential biological activity of 5,5-diphenylhydantoin derivatives (psychotropic agents)[1,2,3] we obtained 5,5-diphenyl-3-(methylthiomethyl)hydantoin (2) in reaction of 5,5-diphenylhydantoin (1) with DMSO and subsequently undergo its oxidation reaction to 5,5-diphenyl-3-(methysulfonylomethyl)hydantoin (3) [4].[...] Full article
123 KiB  
Short Note
Synthesis of 1-[3-(2-methyl-5-nitro-1H-imidazol-1-yl)propyl]-1H-1,2,3-benzotriazole and 1-[3-(2-methyl-5-nitro-1H-imidazol-1-yl)butyl]-1H-1,2,3-benzotriazole
by Krystyna Nowak, Maria Grzegożek and Barbara Szpakiewicz
Molbank 2006, 2006(3), M479; - 31 Mar 2006
Viewed by 3694
The title compounds were obtained in reaction 1,2,3-benzotriazole (1) with 1-(3-chloropropyl)- (2a) and 1-(4-bromobutyl)-2-methyl-5-nitro-1H-imidazole (2b) [1].[...] Full article
139 KiB  
Short Note
Microwave assisted esterification using Fe2(SO4)3.4H2O/concentrated H2SO4 as efficient catalyst
by Krunal G. Desai, Kishor R. Desai and D. Padmanabhan
Molbank 2006, 2006(3), M478; - 31 Mar 2006
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2, 4-D 1 (0.221 g, 1 m mole), Fe2(SO4)3.4H2O (0.423 g, 1 m mole) and conc. H2SO4 (0.098 mL) in absolute methanol (20 mL) was taken in RBF placed in a microwave oven and irradiated (300w, 67-68oC) for 5 min [1].[...] Full article
140 KiB  
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Esterification and hydrolysis under microwave irradiation
by Krunal G. Desai and Kishor R. Desai
Molbank 2006, 2006(3), M477; - 31 Mar 2006
Cited by 6 | Viewed by 4182
p-methoxy benzoicacid 1 (1.67 g, 0.01 mole) and catalytic amount of conc. H2SO4 (2-3 drops) in absolute methanol (30 mL) was taken in RBF placed in a microwave oven and irradiated (400w, 61-62oC) for 2.5 min [1].[...] Full article
89 KiB  
Short Note
Ethyl 1-(4-chlorophenyl)-5,6-dimethyl-7,8a-diphenyl-4,5,6,8a-tetrahydro-1H-[1,2,4] triazolo[4,3-c][1,3]diazine-3-carboxylate
by A. Boudina, A. Baouid and A. Hasnaoui
Molbank 2006, 2006(3), M476; - 31 Mar 2006
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Compound 1 [1] (200 mg, 0.41 mmol) was refluxed in dimethylsulfoxide for 30 minutes.[...] Full article
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