This paper describes the synthesis and characterization of epoxy resins based on (hexafluoroisopropylidene)diphenol (EFN) and p,p’-isopropylidenebisphenol (EBN), respectively and 4, 4’(hexafluoroisopropylidene)dipthalic-imideamine (IMAM), a curing agent. The synthesized epoxy resins and IMAM curing agent were characterized by Fourier Transform Infrared (FTIR) and 1H Nuclear Magnetic Resonance (...

A novel antioxidant polysaccharide-peptide complex LB-1b from the fruiting bodies of the edible abalone mushroom (Pleurotus abalonus) was purified and identified. The structural characteristic of LB-1b was identified by FTIR (Fourier-transform IR), 13C NMR and 1H NMR spectroscopy. LB-1b is a polysaccharide-peptide complex that contains glucose, rhamnose, glucuronic acid and galactose in the mol...

A series of diethylamine Mannich base of asymmetrical mono-carbonyl analogs of 10 curcumin (AMACs) were synthesized and evaluated for cytotoxic activity against Hela Cell lines. 11 The structures of the synthesized compounds were confirmed on the basis of FTIR, 1H-NMR, 12 13C-NMR and mass spectral data. Preliminary cytotoxic test using BSLT showed that all the 13 synthesized compounds exhibited...

The synthesis of a proline-rich cyclic heptapeptide, fanlizhicyclopeptide A (8), previously isolated from the fruits of Annona squamosa (sugar-apples), is described via coupling of tetrapeptide -prolyl--tyrosyl--leucyl--proline methyl ester with tripeptide Boc-glycyl--valyl--proline followed by cyclization of the linear fragment having seven amino acid units. Structure of the synthesized cycloo...

In this study, theophylline (1) compounds were synthesized with addition of 2-bromoetha-nol, 2-bromoacetamide and methyl-2-bromoacetate to attain symmetric connections NHCs (2a–c). New complexes containing the N-heterocyclic carbene (NHC) ligands using azolium salts in dimethyl formamide (DMF). After NHC predecessor reacted Ag2O, Ag(I)-NHC following: 7,9-di-(2-hydroxyethyl)-8,9-dihydro-1,3-dime...

In this study, new 1:2 Ni complexes of 1,3-substituted phenyl-5-phenylformazans were synthesized with -Cl, -Br substituents in the o-, m-, p-positions of the 1-phenyl ring and -NO2 group in the m-position of the 3-phenyl ring. Their structures were elucidated and spectral behaviors were investigated with the use of elemental analysis, GC-Mass, 1H NMR, 13C NMR, FTIR, UV-vis spectra. Furthermore ...

8-chloro-3-((3-chlorobenzyl)thio)-[1,2,4]triazolo[4,3-a]pyridine was synthesized and recrystallized from EtOH. The compound was characterized by 1H NMR, 13C NMR, FTIR, MS, elemental analysis and X-ray diffraction. The compound was crystallized in the monoclinic space group P2(1)/c with a = 8.1992(5), b = 21.7731(12), c = 7.8454(6) Å, α = 90, β = 108.421(7), γ = 90°, V = 1328.81 (15)Å3, Z = 4 an...

The baijiu spirit is often the focus of fraudulent activity due to widely varying prices products. In this work, Solid Phase Microextraction Gas Chromatography (SPME GCMS), Fourier Transform Infrared (FTIR) Spectroscopy and 1H qNMR spectroscopy were evaluated as potential methods authenticate samples. Data collected for 30 samples produced by seven different distilleries. data from SPME GCMS FT...

The synthesis of a proline-rich cyclic heptapeptide, fanlizhicyclopeptide A (8), previouslyisolated from the fruits of Annona squamosa (sugar-apples), is described via coupling oftetrapeptide l-prolyl-l-tyrosyl-l-leucyl-l-proline methyl ester with tripeptide Boc-glycyl-lvalyl-l-proline followed by cyclization of the linear fragment having seven amino acid units.Structure of the synthesized cycl...