Zobrazeno 1 - 10
of 16
pro vyhledávání: '"GORDANA S. USCUMLIC"'
Autor:
Gordana S. Ušćumlić, Bojan Đ. Božić
Publikováno v:
Zaštita Materijala, Vol 59, Iss 1, Pp 117-125 (2018)
Eight 5-(4-substituted arylazo)-4-phenyl-6-methyl-3-cyano-2-pyridones were synthesized by reaction of benzoylacetone and arendiazonium salt, followed by condensation with cyanoacetamide. Absorption spectra of all azo pyridone dyes were recorded in tw
Externí odkaz:
https://doaj.org/article/8285b58026fe469587e9ecedb31ec154
Publikováno v:
Journal of the Serbian Chemical Society, Vol 72, Iss 12, Pp 1217-1227 (2007)
The rate constants for the reaction of 2-substituted cyclohex-1-enylcarboxylic acids and the corresponding 2-substituted benzoic acids with diazodiphenyl methane were determined in various aprotic solvents at 30 ºC. In order to explain the kinetic r
Externí odkaz:
https://doaj.org/article/4b56009b69524818948a8b56a6a87a64
Publikováno v:
Journal of the Serbian Chemical Society, Vol 71, Iss 5, Pp 445-458 (2006)
A series of 1,3,5-trisubstituted isocyanurates (substituents: CH2CH2OH, CH2CH=CH2 and CH2CH2COOH) was synthesized according to a modified literature procedure. Experimental investigations included modification of the synthetic procedure in terms of t
Externí odkaz:
https://doaj.org/article/035b0dbf2d084c50b8708dea89b98023
Publikováno v:
Journal of the Serbian Chemical Society, Vol 69, Iss 8-9, Pp 601-610 (2004)
The rate constants for the reaction of diazodiphenylmethane with 2-(2-substituted cyclohex-1-enyl)acetic acids and 2-(2-substituted phenyl)acetic acids, previously determined in seven hydroxylic solvents, were correlated using the total solvatochromi
Externí odkaz:
https://doaj.org/article/b8e2ee92a8164550b86da321c9ec7489
Publikováno v:
Journal of the Serbian Chemical Society, Vol 68, Iss 10, Pp 699-706 (2003)
A series of 1,3-bis-substituted-5,5-dimethylhydantoins was synthesized using the reaction of 5,5-dimethylhydantoin with the corresponding alkyl halide in the presence of trimethylamine as catalyst and sodium hydroxide, according to a modified literat
Externí odkaz:
https://doaj.org/article/8f0f4461989c4eb4a88e1978c6eb63d7
Publikováno v:
Journal of the Serbian Chemical Society, Vol 68, Iss 7, Pp 525-534 (2003)
The principle of linear free energy relationships was applied to the 1H chemical shifts of the b-vinyl proton atoms of 3-methylene-2-substituted-1,4-pentadienes. The correlations of the proton chemical shifts with Swain and Lupton substituent paramet
Externí odkaz:
https://doaj.org/article/359ba98a2ed649a093469b8879169629
Autor:
IVAN O. JURANIC, ARMIN DE MEIJERE, GORDANA S. USCUMLIC, SERGEI I. KOZHUSHKOV, ZELJKO VITNIK, NATASA V. VALENTIC
Publikováno v:
Journal of the Serbian Chemical Society, Vol 68, Iss 2, Pp 67-76 (2003)
The principles of linear free energy relationships were applied to the 13C substituent chemical shifts (SCS) of the carbon atoms in the unsaturated chain of 3-methylene-4-substituted-1,4-pentadienes. Correlations of the SCS with the substituent param
Externí odkaz:
https://doaj.org/article/a30bd8edaad74bfcac41dc3f37a709d8
Publikováno v:
Journal of the Serbian Chemical Society, Vol 67, Iss 2, Pp 77-85 (2002)
The rate constants for the reaction of diazodiphenylmethane with 1-cyclopentenecarboxylic, 1-cycloheptenecarboxylic, cyclopent-1-enylacetic and cyclohept-1-enylacetic acids were determined in eight alcohols at 30°C using the appropriate UV-spectrosc
Externí odkaz:
https://doaj.org/article/ed49f6b0ea9347a08b4e118c2c52d21a
Publikováno v:
Journal of the Serbian Chemical Society, Vol 66, Iss 8, Pp 507-516 (2001)
A number of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones from cyanoacetamide and the corresponding alkyl ethyl acetoacetates were synthesized according to modified literature procedures. The alkyl ethyl acetoacetates were obtained by the reac
Externí odkaz:
https://doaj.org/article/16f21a12eb2b4d978157a75e9c21abf3
Publikováno v:
Journal of the Serbian Chemical Society, Vol 65, Iss 12, Pp 839-846 (2000)
Rate constants for the reaction of diazodiphenylmethane with cyclohex-1-enylcarboxylic acid and 2-methylcyclohex-1-enylcarboxylic acid were determined in nine aprotic solvents, as well as in seven protic solvents, at 30°C using the appropriate UV-sp
Externí odkaz:
https://doaj.org/article/7989fa0b0d39471eacdd4b7b11545615