Solvent-free synthesis, spectral correlations and antimicrobial activities of some aryl imines

Self Cite

Section: Synthesis Of (E)-n-substitutedbenzylidene-4-methoxyanilinmentioning

confidence: 99%

“…Recently Suresh et al, Sakthinathan et al, and Mayavel et al, have reported the antimicrobial activities of some E-imines [21][22][23]. Lakshmanan et al have studied the insect antifeedant activities of trifluormethyl imines [24,25].…”

Section: Introductionmentioning

confidence: 99%

(E)-N-Substitutedbenzylidene-4-Methoxyanilines as Insect Antifeedants

Lakshmanan¹,

Sekar²,

Sathiyendiran³

et al. 2014

Self Cite

“…The νCO, NH, C-N, C-Cl, C-F, C=N stretching frequencies (cm -1 ) of these imines have been recorded and are presented in Table 2. These data are correlated with Hammett substituent constants [59][60][61]64,[66][67][68][69][70][71][72] and Swain-Lupton's [62] parameters. In this correlation the structure parameter Hammett equation employed is as shown in equation (1).…”

Section: Ir Spectral Studymentioning

confidence: 99%

“…Recently Suresh et al, [61] have synthesized some aryl E-imines and studied the UV, IR and NMR spectral liner free energy relationships through Hammett equation. In their investigations they observed satisfactory and good correlations for the above spectroscopic data with Hammett substituent constants and Swain Lupton's [62].…”

Section: Introductionmentioning

confidence: 99%

Solvent-Free Synthesis and Spectral Linearity of Some (E)-2-(substituted benzylideneamino)-N-(3-chloro-4-fluorophenyl)-hexahydro-2H-cyclopenta[b]thiophene-3-carboxamides

Thirunarayanan

Sekar²

2013

Some(E)-2-(substituted benzylideneamino)-N-(3-chloro-4-fluorophenyl)-hexahydro-2H-cyclopenta [b]thiophene-3-carboxamide derivatives have been synthesized by SiO 2 :H 3 PO 4 catalyzed solventfree condensation of 2-amino-N-(3-chloro-4-fluorophenyl)-hexahydro-2H-cyclopenta [b]thiophene-3-carboxamide and various substituted benzaldehydes in microwave irradiation. The yield of the iminecarboximido derivatives has been found to be more than 85 %. The purity of all imine-carboximido derivatives has been checked using their physical constants and spectral data. The spectral data of the iminecarboximido derivatives such as infrared ν (cm -1 ) of CO, NH, C-N, C-Cl, C-F, C=N, and the NMR chemical shifts (δ, ppm) of NH, CH, CO and C=N have been correlated with Hammett substituent constants, F and R parameters. From the results of statistical analysis, the effects of substituent on the above spectral group absorptions have been discussed.

“…This type of study was studied only in ketones, esters, imines, acyl halides, pyrazolines, unsaturated aldehydes and acids [62][63][64][65][66]. With a view to above, there is no report available in the literature for solvent free synthesis and the study of effects of substituent on the group frequencies of some E-N-benzene sulfonilimines by SiO 2 -H 3 PO 4 catalyzed condensation of aldehydes and sulphonamides.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Spectral Studies of some N-[(E)-Phenylmethylidene]benzenesulfonamides

Sekar¹,

Thirunarayanan

2013

A series of some N- [(E)-phenylmethylidene]benzenesulfonamide derivatives have been synthesised using solid SiO 2 -H 3 PO 4 catalyst under solvent free conditions in microwave irradiation. The synthesised E-N-benzene sulfonilimines purities have been verified by their physical constants and spectroscopic data. The spectral frequencies are correlated with Hammett substituent constants, F and R parameters using linear regression analysis. From the results of statistical analysis the effect of substituents on the group frequencies will be discussed.