C-NMR
S4 were characterized through FT-IR, 1H NMR and13 C NMR. These synthesized compounds have
... In the present article, a series of Schiff bases have been derived from aromatic aldehydes with acid hydrazide and using concentrated hydrochloric acid as catalyst. The synthesized compounds are (E)-4-Chloro-N ʹ -(3,4- ...
15
H-NMR, 13 C-NMR, and GCMS. The ligand behaved as a bidentate
... The potentiation of the antimicrobial activity of 4- benzylimino-2-3-dimethyl-l-phenylpyrazal-5-one by metal chelation has been studied. A Schiff base ligand, 4- benzylimino-2-3-dimethyl-l-phenylpyrazal-5-one have been ...
6
H NMR, 13 C NMR, mass spectra and elemental analysis. All the
... Different pyrimidine derivatives containing a phenothiazine nucleus were synthesized under reflux temperature. Reaction of 3-methyl-1-(10H- phenothiazin-8-yl)-1H-pyrazol-5(4H)-one (3), an appropriate aldehyde and ...
6
H NMR, 13 C NMR, EIMS). Newly synthesized compounds were
... A new series of N-methyl-5-substituted-1H-indole-2-oxo-3-((2 ′ -acetamidothiazol-4 ′ -yl)carbonylmethyl hydrazones) (5a-j) were synthesized with high degree of purity and in excellent yield. The structures of new ...
6
H NMR, 13 C NMR and UV spectral data. Besides, the newly synthesized compounds were analysed
... In this paper, ten novel [2-Methoxy-5-(3-alkyl-4,5-dihydro-1H-1,2,4-triazol-5-one-4-yl)-azomethinphenyl benzoates (4) were obtained with the reactions of 3-alkyl(aryl)-4-amino-4,5-dihydro-1H-1,2,4-triazol-5-ones (2) and ...
6
C NMR, 77 Se NMR, GCMS) and elemental analysis. The cis or trans configuration of the hydrogen/chloro /nucleophile
... H NMR and 13 C NMR spectroscopic ...13 C NMR data of 4 with that of cis-3-chloro-3-phenyl/benzylthio-β-lactams, whose stereochemistry has already been established by X-ray ...
6
H NMR, 13 C NMR, 31 P NMR and Mass spectroscopy and investigated their antimicrobial activity.
... H NMR, 13 C NMR, 31 P NMR and mass ...of C=O of ester, 1228 cm -1 indicates presence of P=O and band at 1053 cm -1 and 1024 cm -1 indicates presence of –C-O stretching of methoxy ...
6
IR, 1H NMR,13 C NMR, MS, and elemental analyses. The newly synthesized compounds were tested for their anti-
... C NMR spectra were taken using JEOL JNMLA series FT NMR system (100 MHz, JEOL, Tokyo, Japan) at the Assiut University Unit of Trace Analyses, ...
13
H NMR, 13 C NMR, elemental analysesand IR of synthesized
... Experiments were carried out in an Orbit 6 parallel synthesizer. Melting points were established on a Thomas Hoover melting point apparatus and are uncorrected. 1 H NMR and 13 C NMR spectra were ...
5
H NMR, 13 C NMR and mass spectral data. All the synthesized compounds were screened for
... The reaction sequences employed for the synthesis of title compounds is shown in Scheme I. The 4-methyl thio phenyl acetonitril (1) is oxidized to 4-(methyl sulfonyl) phenyl acetonitril (2). This on hydrolysis (3) ...
9
HNMR, 13 C NMR and mass spectra. The biological
... 4-Arylidene-3-methyl-1H-pyrazol-5-one derivatives (1) [22] were reacted with acetoacetanilide via Michael addition to give 1H-indazole-5-carboxamide 2 and not pyrazolopyridine derivative 3 (Scheme 1). The structures of ...
11
H NMR, 13 C NMR and mass spectral data. The
... A synthetic approach to the title compounds is outlined in Scheme 1. Acid hydrazides (2a-d) derived from 2-(aryloxymethyl)benzoic acids (1a-d) were condensed with aromatic aldehydes to afford the corresponding hydrazones ...
11
IR, 1H-NMR and13 C-NMR and mass spectrometry. The compounds have been evaluated for antibacterial activity against
... were synthesized through two routes viz.(i) single step reaction of substituted aromatic and (ii) via multistep synthesis by converting substituted aromatic acid to their corresponding esters and then into their ...
10
H NMR, C NMR and ESI(+)-MS spectra…………………………………….S-2
... C 0.9391741544 -1.4767206791 -0.1862753968 C 1.7363571777 -1.1102803160 -1.2831564117 C 3.1243622712 -1.1468475050 -1.1696791272 C 3.7265855628 -1.5308154729 0.0338390834 C ...
45
ISOLATION AND CHARACTERIZATION OF MAJOR PHYTOCHEMICALS FROM THE LEAVES OF PIPER BETLE. LINN
... H NMR, 13 C NMR evidenced that the ethanolic extract of Piper betle leaves contains Caffeic acid, p-Coumaric acid, Eugenol, Rutin and Hydroxychavicol as major secondary metabolites which are known ...
19
ISOLATION AND STRUCTURE ELUCIDATION OF DAIDZEIN AND GENISTEIN FROM SIRAITIA GROSVENORII
... a C-18 column using a Biotage Flash Chromatography ...extensive NMR and Mass spectral data. The complete 1 H and 13 C NMR spectral assignments are herewith assigned for Daidzein and Genistein ...
7
Further Investigation Into the Phenomenal Paramagnetic Shift Influence of Cu(II) Ion on Ferrocene-Thiosemicarbazone-Based Bimetallic Complexes
... have been conducted on the complex. A comparison has been made with a similar that containing a methyl fragment. It has been found that whereas the Cu(II) paramagnetic influence may shift or even block the 1 H NMR ...
5
INVESTIGATION OF THEORETICAL PROPERTIES OF NOVEL 1-(MORPHOLINE-4-YL-METHYL)-3-METHYL -4-(4-ETHOXYBENZYLIDENAMINO)-4,5-DIHYDRO -1H-1,2,4-TRIAZOL-5-ONE MOLECULE
... H- NMR, 13 C-NMR spectral ...13 C-NMR isotropic shift values, IR absorption frequencies, bond angles, bond lengths, dipole moments, mulliken charges, HOMO- LUMO energies and total ...
10
Factors limiting oxygen delignification of kraft pulp
... HMQC, NMR, oxidation mechanism, oxygen delignification, p-hydroxyphenyl moieties, quantitative 13 C NMR, quantitative 31 P NMR, residual lignin, solubilized lignin, ...
11
SYNTHESIS AND APPLICATIONS OF COMPLEXES OF CHROMIUM METAL WITH HYDRAZINECARBOTHIOAMIDES LIGANDS
... Abstract: - This paper incorporates the preparation, characterization and biochemical screening of the biologically potent ligands and their complexes with chromium (III). The ligands used in these studies are ...
5