3 research outputs found
Design of New Potent Insecticides of Organophosphate Derivatives Based on QSAR Analysis
Design of new potent insecticide compounds of organophosphate derivatives based on QSAR (Quantitative Structure-Activity Relationship) analytical model has been conducted. Organophosphate derivative compounds and their activities were obtained from the literature. Computational modeling of the structure of organophosphate derivative compounds and calculation of their QSAR descriptors have been done by AM1 (Austin Model 1) method. The best QSAR model was selected from the QSAR models that used only electronic descriptors and from those using both electronic and molecular descriptors. The best QSAR model obtained was:
Log LD50 = 50.872 - 66.457 qC1 - 65.735 qC6 + 83.115 qO7
(n = 30, r = 0.876, adjusted r2 = 0.741, Fcal/Ftab = 9.636, PRESS = 2.414 x 10-6)
The best QSAR model was then used to design in silico new compounds of insecticide of organophosphate derivatives with better activity as compared to the existing synthesized organophosphate derivatives. So far, the most potent insecticide of organophosphate compound that has been successfully synthesized had log LD50 of -5.20, while the new designed compound based on the best QSAR model, i.e.: 4-(diethoxy phosphoryloxy) benzene sulfonic acid, had log LD50 prediction of -7.29. Therefore, the new designed insecticide compound is suggested to be synthesized and tested for its activity in laboratory for further verification
Π Π°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΎΠ±Π΅ΡΡΠ΅ΡΠΈΠ²Π°Π½ΠΈΡ Π΄ΠΈΠ·Π΅Π»ΡΠ½ΡΡ ΡΡΠ°ΠΊΡΠΈΠΉ Π°ΠΊΠ²Π°ΡΠ΅ΡΠΌΠΎΠ»ΠΈΠ·ΠΎΠΌ
Π Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈΡΡ ΡΠ°ΡΡΠ΅ΡΡ ΡΠ½Π΅ΡΠ³ΠΈΠΈ Π΄ΠΈΡΡΠΎΡΠΈΠ°ΡΠΈΠΈ ΡΠ΅ΡΠ½ΠΈΡΡΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ Π΄ΠΈΠ·Π΅Π»ΡΠ½ΡΡ
ΡΡΠ°ΠΊΡΠΈΠΉ Ρ ΠΏΡΠ΅Π΄Π²Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΠ΅ΠΉ, ΠΎΠΏΠΈΡΠ°Π½Ρ Π΄Π²Π° Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ Π²Π΅ΡΠΎΡΡΠ½ΡΡ
ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ° ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΏΡΠΈ Π°ΠΊΠ²Π°ΡΠ΅ΡΠΌΠΎΠ»ΠΈΠ·Π΅ (Π³ΠΎΠΌΠΎΠ»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΠ°Π·ΡΡΠ² ΠΈ ΠΏΡΠΎΡΠΎΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅) Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ ΠΌΠ΅ΡΠ°Π½ΡΠΈΠΎΠ»Π°, ΡΠ°ΡΡΡΠΈΡΠ°Π½Ρ ΡΠ½ΡΠ°Π»ΡΠΏΠΈΡ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ ΡΠ°Π΄ΠΈΠΊΠ°Π»ΠΎΠ² Π΄Π»Ρ ΠΏΠ΅ΡΠ²ΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠΈ, ΡΠ½Π΅ΡΠ³ΠΈΡ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΈ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ ΠΈ ΠΊΠΎΠ½ΡΡΠ°Π½ΡΠ° ΡΠΊΠΎΡΠΎΡΡΠΈ Π΄Π»Ρ Π²ΡΠΎΡΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠΈ, ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΡ
Π΅ΠΌΠ° ΠΎΠ±Π΅ΡΡΠ΅ΡΠΈΠ²Π°Π½ΠΈΡ Π΄ΠΈΠ·Π΅Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠΏΠ»ΠΈΠ²Π° ΠΏΠΎΡΡΠ΅Π΄ΡΡΠ²ΠΎΠΌ Π°ΠΊΠ²Π°ΡΠ΅ΡΠΌΠΎΠ»ΠΈΠ·Π°, Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ΅Π°ΠΊΡΠΎΡΠ° ΠΈ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π° ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ΅ΠΆΠΈΠΌΠ°.In this work, the dissociation energy of sulfur compounds of diesel fractions with preliminary optimization was calculated, two most probable mechanisms of chemical transformation during aquathermolysis (homolytic cleavage and proton catalyzed cleavage) were described using the example of methanethiol, the enthalpy of radical formation for the first reaction, the activation energy of the transition state and the rate constant for the second reaction were calculated, a process flow diagram for desulfurization of diesel fuel by aquathermolysis was developed, the reactor was designed and the process parameters was optimized