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Polymers of intrinsic microporosity (PIMs) possess rigid and highly non-linear molecular structures. The contortion site of PIM-1 is provided by the monomer 5,5 ,6,6 -tetrahydroxy-3,3,3 ,3 -tetramethyl-1,1 -spirobisindane (TTSBI). The paper described the effect of synthetic conditions including catalyst...

According to Decision No. 13/2020/QD-TTg dated April 6, 2020 by the Prime Minister on the mechanism to encourage the development of rooftop solar power in Vietnam will expire after December 31, 2020. To harmonize the interests of households and the Electricity of Vietnam (EVN), a grid-connected rooftop...

The physical quality (texture and color), moisture content, water holding capacity, low-field nuclear magnetic resonance (NMR) transverse relaxation T2 data and the correlation among these indexes in pre-cooked (boiled for 5 min) Chinese shrimp Fenneropenaeus chinensis during frozen storage were investigated....

Synthesis of calix[4]resorcinarene derivatives and their activity as an antioxidant has been carried out. The calix[4]resorcinarene was synthesized through a condensation reaction of resorcinol, valeraldehyde, and benzaldehyde using HCl as a catalyst with ethanol as a solvent (73 ℃, 24 h). Two synthesized...

Siderophores are iron chelator low molecular weight secondary metabolite produced by microorganisms found in limited iron environment. In this study, a bacterium capable of secreting siderophores was isolated from the iron deficiency rhizosphere agriculture soil from Salem district, Tamil Nadu, India....

A novel anticoagulant, diethyl citrate (Et2Cit) was synthesized and characterized by carbon nuclear magnetic resonance (13C NMR), mass spectrometry and UV-visible spectroscopy. There were two isomers with different chemical environments, that is, 1, 3-diethyl citrate and 1,5-diethyl citrate. Through...

Chlorophylls (Chls), the green pigments responsible for photosynthesis in plants, algae and bacteria, are also part of the daily diet of herbivorous feeders. Chl degradation occurs during leaf senescence and fruit ripening but is also noticed as a response to biotic and abiotic stresses. Besides the...

The addition reaction was carried out under the acidic conditions using dicyandiamide and 3,3'-dimethyl-4,4'-diaminodicyclohexylmethane (DMDC) as raw materials to prepare 3,3'-dimethyl P-guanidino) dicyclohexylmethane. The effects of reaction temperature, reaction time and molar ratio of materials on...

Structural features of enzymatic hydrolysis lignin from the corn stalks and furfural residue was compared with lignin extracted from paper-making black liquid (PBL). Lignin was characterized by FT-IR, GPC, 13C- and 1H- NMR analysis. Enzymatic hydrolysis lignin from the corn stalks (CS) had a 12.2% higher...

This community service program aims to enhance welfare and environmental sustainability through the Green Economy. This initiative involves two primary partners: the Taruna Tani Mapan (Tampan) Farmer Group in Sumanding Village, which operates in horticulture, plantation product production, and livestock,...

Asiatic acid (AA) is one of the triterpenoids isolated from pegagan (Centella asiatica (L.) Urb.), which has the antiinflammatory activity. The present studies were aimed to synthesize triacetyl asiatic acid (2,3,23-triacetooxy-12-ene asiatic acid) and to predict its hepatotoxicity properties. Acetylation...

In this study, a series of aromatic aldehyde schiff base compounds were synthesized respectively by 4,4’-diaminobiphenyl and three different aromatic aldehydes. The structures of these compounds were confirmed by FT-IR, and 1H NMR. The optical properties, which were characterized by UV-Vis and photoluminescence...

In this paper, Fe thiolate complexes Fe(phen)(pyS)2 (M) were synthesized, the properties of complexes were characterized by 1H-NMR and MS. The effects of reaction conditions on catalytic performance of catalyst M had been studied. The results of catalytic performance indicated that the optimal reaction...

Based on the principle of partition coefficient values ( ) for target compounds and the separation factor ( ) between target compounds, the optimal two-phase solvent system composed of n-hexane-ethyl acetate-methanol-water (1:0.3:1:0.2, v/v) was applied for the first time to isolate and purify three...

A series of a novel class of linear aromatic ether polymers (AEP) containing perfluorocyclobutyl and triazole unites were synthesized by click chemistry and their structures and properties that were characterized by FT-IR, 1H NMR, GPC, TGA, DSC and WAXD. The results showed that these polymers exhibited...

Fe thiolate complexes Fe(bpy)(pyS)2 (M) were synthesized, the properties of complexes were characterized by 1H-NMR and MS and the effects of reaction conditions on catalytic performance had been studied. The results of catalytic performance implied that when 5% triethylamine was used as electron donor,...

Fe thiolate complexes Fe(bpy)(pyS)2 (M) were synthesized, the properties of complexes were characterized by 1H-NMR and MS and the effects of reaction conditions on catalytic performance had been studied. The results indicated that when the pH value of catalysis system was 11.6, ethanol/water was used...

This electronic document is a “live” template. The various components of your paper [title, text, heads, etc.] are already defined on the style sheet, as illustrated by the portions given in this document. 1,2,3- triazoles compounds is important N- heterocyclic compounds, in recent years has been widely...

In this paper, Fe thiolate complexes Fe(phen(pyS)2 (M) were synthesized and the properties of complexes were characterized by 1H-NMR and MS. The effects of reaction conditions on performanceof Fe thiolate complexes Fe(phen(pyS)2had been studied. The results of catalytic performance implied thatwhen 2.0...

With Itaconyl chloride and m-phenylenediamine as raw materials, poly(itaconic acid- m-phenylenediamine) was synthesized by the low temperature solution polycondensation we reported. The effects of initial temperature and reaction time on polycondensation were investigated. And the product was characterized...

To ascertain Neonatal Mortality Rate (NMR), Early NMR (ENMR), Late NMR (LNMR), Corrected NMR (cNMR), and causes of neonatal mortality in a major tertiary care private maternity and Neonatal Intensive Care Unit (NICU) set up in Saudi Arabia. This was a retrospective analysis of hospital data. We ascertained...

Purpose: Delirium is a frequent occurrence amongst Intensive Care Unit (ICU) patients, but studies on its causes are sparse and its risk factors vary from disease to disease. Here, in this study, an attempt was made to investigate the factors associated with the prognosis of delirium in the ICU. Methods:...

A supramolecular guest copolymer (PNAP-co-PAM) based on naphthol-containing monomer (NAP) and acrylamide was synthesized via Atom Transfer Radical Polymerization. The structure of supramolecular guest copolymer was characterized by NMR and GPC. And the self-assembly behavior of supramolecular guest copolymer...

The Programmed Cell Death 1 (PD-1)/Programmed Death Ligand 1 (PD-L1) Immune Checkpoint Inhibitors (ICIs), have become a hot spot in the field of cancer research and treatment, and bring new hope to patients with advanced tumors. But, in addition to enhancing the anti-tumor effect of T cells, PD-1/PD-L1...

Sepsis is a life-threatening organ dysfunction caused by a deregulated host response to infection, and is the most common cause of death in the intensive care unit. Although the pathogenesis of sepsis has made substantial progress, the current clinical treatment of sepsis is basically symptomatic treatment,...

The understanding of coal body structure has important research significance for the prevention of coal and gas outburst and the development of coalbed methane. In order to further determine the difference between the primary structure coal and the structural microstructure of coal mines, and analyze...

Quinazoline derivatives have been shown to be biologically active such as afatinib. The cinnamic acid derivative is an important part of the quinazoline derivative which exerts its activity. And Cinnamic acid derivatives were prepared by the benzaldehyde derivatives and malonic acids. In this paper,...

4-Chloro-6-methoxy-2-methyl-3-nitroquinoline (1) was synthesized from 4-methoxyaniline through three steps including Cyclization, Nitrification and Chlorination. The structure of the target product (1) was confirmed by 1H NMR and MS. This method started with cheap raw materials was of simple experimental...

2-((4-substituted phenyl) amino) benzaldehyde, is an important intermediate for the synthesis of many biologically active intermediates of anticancer drugs. In this work, a rapid and high efficiency synthetic method for compound 1a-1b was established. Compound 1a-1b was synthesized from 2-chloronicotinic...

Sorafenib (1) in the medical field to show the potential biological activity. Literature on the majority of tumor cells have a high biological activity, such as lymphoma, breast cancer, prostate cancer. However, some synthetic route of Sorafeni has disadvantages, such as low product yield and complicated...

Thieno[2,3-d]pyrimidine is a key intermediate in many biologically active compounds such as GDC-0941 and BKM 120. In this work, a rapid synthetic method for compound (4) was established. The compound (4) was synthesized from the commercially available methyl 2-aminothiophene-3-carboxylate and formimidamide...

4-(Thieno[3,2-d]pyrimidin-4-yl)morpholine derivatives is an important intermediate which inhibited tumor necrosis factor alpha and nitric oxide. In this work, a rapid and green synthetic method for compound (5) was established. The compound (5) was synthesized from the commercially available methyl 3-aminothiophene-2-carboxylate...

Afatinib (1) exhibited potential biological activities in medicine. There are shortcomings in the synthesis route of afatinib in the literature, the product yield is low and the post-processing is complicated. Therefore, in this paper, the two-step synthetic route of afatinib was optimized. The two-step...

3-phenyl-1H-pyrazole (1) is an important intermediate for the synthesis of many biologically active compounds. It was synthesized from acetophenone (2) and hydrazine through two steps including Knoevenagel condensation, Cyclization reaction reaction. In this paper, three novel 3-phenyl-1H-pyrazole derivatives...

Chalcone is an important intermediate in many biologically active compounds such as flavonoid. Chalcone was prepared by the aldol condensation of benzaldehyde with acetophenone. In this paper, five novel chalcone derivatives were prepared. The structure were confirmed by MS and 1H NMR. Furthermore, the...