Category: 111-11-5

Ndukwe, Gloria ihuoma published the artcilePhytochemical analysis and antimicrobial activity of Aframomum chrysanthum seed extracts, Related Products of esters-buliding-blocks, the main research area is Aframomum seed extract antimicrobial microbial pathogen.

Three extracts of Aframomum chrysanthum seeds were investigated for antimicrobial activity using disk diffusion method. Varied concentration-dependent antimicrobial activities were exhibited by n-hexane and ethylacetate extracts against the investigated pathogenic microorganisms especially Staphylococcus aureus. Susceptibility testing conducted on all the extracts showed that n-hexane extract had moderate antimicrobial activity at 200 mg/mL against Staphylococcus aureus, Candida albicans and Trichophyton rubrum. All the isolates were observed to be resistant to the methanol extract n-Hexane extract displayed potent antimicrobial activity against Trichophyton rubrum when compared to the standard antifungal drug (fungisol) used in the investigation. Phytochem. anal. carried out on the n-hexane extract of Aframomum chrysanthum seed, revealed the presence of eighty-one (81) compounds made up of phytosterols, alkaloids, anthraquinone, phospholipids and fatty acids. The presence of these phytochems. is an indication that the plant could be used as antimicrobial agent.

International Journal of Chemical Studies published new progress about Antimicrobial agents. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Related Products of esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Wang, Hua-Ying published the artcileOptimization of SPME-GC-MS and characterization of floral scents from Aquilegia japonica and A. amurensis flowers, Application In Synthesis of 111-11-5, the main research area is Aquilegia Asterias SPME GC MS VOC; Columbines; GC–MS; Northeast China; SPME; VOCs.

The floral scents of plants play a key role in plant reproduction through the communication between plants and pollinators. Aquilegia as a model species for studying evolution, however, there have been few studies on the floral scents and relationships between floral scents and pollination for Aquilegia taxa. In this study, three types of solid-phase micro-extraction (SPME) fiber coatings (DVB/PDMS, CAR/PDMS, DVB/CAR/PDMS) were evaluated for their performance in extracting volatile organic compounds (VOCs) from flowers of Aquilegia amurensis, which can contribute to the future studies of elucidating the role of floral scents in the pollination process. In total, 55 VOCs were identified, and among them, 50, 47 and 45 VOCs were extracted by the DVB/CAR/PDMS fiber, CAR/PDMS fiber and DVB/PDMS fibers, resp. Only 30 VOCs were detected in A. japonica taxa. Furthermore, the relative contents of 8 VOCs were significant different (VIP > 1 and p < 0.05) between the A. amurensis and A. japonica. The results can be applied in new studies of the relationships between the chem. composition of floral scents and the processes of attraction of pollinator. It may provide new ideas for rapid evolution and frequent interspecific hybridization of Aquilegia. BMC Chemistry published new progress about Aquilegia flabellata. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application In Synthesis of 111-11-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Jugreet, Bibi Sharmeen published the artcileEssential oils from 9 exotic and endemic medicinal plants from Mauritius shows in vitro antibacterial and antibiotic potentiating activities, Computed Properties of 111-11-5, the main research area is Pittosporum myrcene chloramphenicol antibiotic antibacterial agent Pseudomonas infection.

Essential oils (EOs) extracted from botanical resources have greatly been appraised as antimicrobials against a broad spectrum of microorganisms. A panoply of exptl. studies have pointed out the immense potency of EOs as natural antimicrobial agents at relatively low doses; largely attributed to the synergistic interactions of various bioactive components. In the present study, 10 EOs prepared from two endemic Pittosporum senacia Putterl. subsp. Senacia and Syzygium coriaceum J. Bosser & J. Gueho and seven exotic Cinnamomum camphora (L.) Nees & Eberm, Citrus aurantium L., Curcuma longa L, Morinda citrifolia L., Petroselinum crispum (Mill.) Fuss, Plectranthus amboinicus (Lour.) Sprengel and Syzygium samarangense (Blume) Merr. & L. Perry aromatic medicinal plants from Mauritius, were screened for their growth inhibitory activities against eight bacteria (ATCC strains and clin. isolates) using broth microdilution techniques. The EOs were found to possess varying degree of antibacterial potency. The most active EOs were found to have min. inhibitory concentration (MIC) of 0.25-4 mg/mL and min. bactericidal concentration (MBC) of 0.25-16 mg/mL. In particular, at its MIC values, P. amboinicus EO showed bactericidal effects against four strains. However, all tested bacteria were insensitive to P. senecia and C. aurantium fruit peel EOs. Bacillus spizizenii was found to be the most susceptible strain to the active EOs. Addnl., P. amboinicus and the two Syzygium spp. EOs showed antibiotic potentiating activities. Mostly synergistic and partial synergistic actions of the EOs in combination with the conventional antibiotics (streptomycin, chloramphenicol and ciprofloxacin) at a ratio of 1:1 were obtained against the tested bacteria. Thus, results from this study highlighted the antibacterial potential and the efficacy of the most active EOs as antibiotic potentiating agents that could potentially be used in combinational therapies along with conventional antibiotics for a synergistic approach in the treatment/management of clin. relevant bacterial infections.

South African Journal of Botany published new progress about Antibacterial agents. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Computed Properties of 111-11-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Mamadalieva, Nilufar Z. published the artcileA comparative study on chemical composition and antimicrobial activity of essential oils from three Phlomis species from Uzbekistan, Application of Methyl octanoate, the main research area is phytochem composition antimicrobial activity essential oil Phlomis species; GC-FID; GC-MS; Lamiaceae; Phlomis; antimicrobial activity; essential oils.

Essential oils obtained from the aerial parts of Phlomis bucharica, P. salicifolia and P. sewerzowii were determined using GC-FID and GC-MS methods. A total of 76 components were identified in the three species representing 97.12, 88.34, and 96.41% of the whole oil, resp. High percentages of thymol (20.41%) and camphor (14.46%) exist in P. bucharica oil. Me palmitate predominates in P. salicifolia oil representing 51.15% whereas thymol (35.76%) is the major constituent in P. sewerzowii essential oil. GC-MS analyses showed that P. bucharica and P. sewerzowii are more closely related comparable to P. salicifolia. The antimicrobial activity of the essential oils was assessed against different microorganisms using agar-disk diffusion and broth microdilution assay. Among the three tested species, the essential oil of P. salicifolia showed the highest antibacterial activity.

Natural Product Research published new progress about Antibacterial agents. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Application of Methyl octanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ayromlou, Anahita published the artcileChemical composition, antioxidant, antibacterial, and anticancer activities of Scorzonera calyculata Boiss. and Centaurea irritans Wagenitz. Extracts, endemic to Iran, Product Details of C9H18O2, the main research area is Scorzonera calyculata Centaurea irritans extract composition antioxidant antibacterial anticancer.

This research focused on the composition for the essential oils, which was obtained by solvent-free microwave extraction (SFME) from the aerial parts of Scorzonera calyculata, and hydrodistd. oils from the aerial parts and roots of Centaurea irritans, from Astraceae family, were investigated by gas chromatog. (GC) and GC/mass spectrometry (MS). In addition, the biol. activities of the methanolic extracts from the aerial parts of S. calyculata and C. irritans were determined Total phenolic content was determined by the Folin-Ciocalteu procedure. Antibacterial activity of the methanolic extracts was carried out by min. inhibitory concentration (MIC) and min. bactericidal concentration (MBC). Cytotoxicity of the methanolic extract of S. calyculata against human lung cancer cells (A549) and the methanolic extract of C. irritans against breast lung cancer cells (MCF-7) were measured using 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method. The obtained results of GC/MS technique showed that the SFME oil of S. calyculata, was rich in regard to nonterpenoid and sesquiterpene components. Both oils from the aerial parts and roots of C. irritans were rich in regard to oxygenated monoterpenes. The S. calyculata and C. irritans extracts showed moderate antioxidant activities with an inhibitory concentration (IC50) value of 1.48 and 1.99 mg/mL, using 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay and 73.51 and 44.48μmol Fe (II)/g dry mass using ferric-reducing antioxidant power (FRAP) assay, resp. The extracts showed high toxicity against gram-pos. bacteria and the IC50 value of extracts cytotoxicity was found to be 9.8 and 10.3 mg/mL, resp. It appeared that the investigated samples could be as a promising drug for pharmaceutical industry.

Journal of Reports in Pharmaceutical Sciences published new progress about Antibacterial agents. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Product Details of C9H18O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Harnying, Wacharee published the artcileN-Heterocyclic Carbene/Carboxylic Acid Co-Catalysis Enables Oxidative Esterification of Demanding Aldehydes/Enals, at Low Catalyst Loading, Recommanded Product: Methyl octanoate, the main research area is ester preparation; aldehyde alc oxidative esterification heterocyclic carbene benzoic acid catalyst; acylation; carbenes; cooperative catalysis; esterification; oxidation.

The discovery that simple carboxylic acids, such as benzoic acid, boost the activity of N-heterocyclic carbene (NHC) catalysts in the oxidative esterification of aldehydes RCHO (R = heptan-3-yl, Ph, 1-[4-(propan-2-yl)phenyl]propan-2-yl, 6-methylhept-5-en-2-yl, etc.) was reported. A simple and efficient protocol for the transformation of a wide range of sterically hindered α- and β-substituted aliphatic aldehydes/enals, catalyzed by a novel and readily accessible N-Mes-/N-2,4,6-trichlorophenyl 1,2,4-triazolium salt, and benzoic acid as co-catalyst, was developed. A whole series of α/β-substituted aliphatic aldehydes/enals hitherto not amenable to NHC-catalyzed esterification could be reacted at typical catalyst loadings of 0.02-1.0 mol%. For benzaldehyde, even 0.005 mol% of NHC catalyst proved sufficient: the lowest value ever achieved in NHC catalysis. Preliminary studies point to carboxylic acid-induced acceleration of acyl transfer from azolium enolate intermediates as the mechanistic basis of the observed effect.

Angewandte Chemie, International Edition published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Recommanded Product: Methyl octanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Cebular, Klara published the artcile1,3-dibromo-5,5-dimethylhydantoin as a precatalyst for activation of carbonyl functionality, Synthetic Route of 111-11-5, the main research area is carboxylic acid alc dibromo dimethylhydantoin catalyst esterification; ester preparation green chem; aldehyde dibromo dimethylhydantoin catalyst aldol condensation regioselective; enal preparation green chem; 1,3-dibromo-5,5-dimethylhydantoin; alkyl acids; aryl acids; esterification; metal-free catalyst.

An advanced methodol. for the direct esterification of carboxylic acids and alcs., and for aldol condensation of aldehydes using widely available, inexpensive, and metal-free 1,3-dibromo-5,5-dimethylhydantoin under neat reaction conditions was reported. The method is air- and moisture-tolerant, allowing simple synthetic and isolation procedures for both reactions were studied. The reaction pathway for esterification was proposed and a scale-up of certain industrially important derivatives was performed.

Molecules published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Synthetic Route of 111-11-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Liang, Wen-Yu published the artcilePd-catalyzed alkoxycarbonylation of alkenes promoted by H2O free of auxiliary acid additive, Name: Methyl octanoate, the main research area is ester green preparation; alkene alc carbon monoxide alkoxycarbonylation palladium catalyst water promoted.

The Pd-catalyzed and water promoted alkoxycarbonylation of alkenes using alcs. and carbon monoxide to afford esters RCHR1C(O)OR2 [R = n-Bu, cyclohexyl, Ph, etc.; R1 = H, Me; R2 = Me, Et, iPr] was reported. Water instead of Bronsted/Lewis acid was found to effectively improve the catalytic performance of Pd(MeCN)2Cl2-Xantphos system for alkoxycarbonylation of alkenes. Under the optimal conditions, the best yield of 97% was obtained for the target products Me 3-phenylpropanoate and Me 2-phenylpropanoate with L/B of 4.3 and TON of 192. The in situ high pressure FT-IR anal. verified that water played an important role in promoting formation and stability of Pd-H active species which was responsible for the efficient alkoxycarbonylation of alkenes. In addition, the ligand effect of Xantphos on this reaction was discussed.

Molecular Catalysis published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Name: Methyl octanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

da Silva, Aline Priscilla Gomes published the artcileVolatile Compounds Determined by SPME-GC, Bioactive Compounds, In Vitro Antioxidant Capacity and Physicochemical Characteristics of Four Native Fruits from South America, Computed Properties of 111-11-5, the main research area is ocorocillo cambuca volatile compound flavonoid radical scavenging activity food; Byrsonima crassifolia; Byrsonima stipulacea; Chemical composition; Eugenia boliviana; Plinia edulis.

The aim of the present study was to identify volatile organic compounds (VOCs) by SPME-GC and quantify the bioactive compounds (ascorbic acid, total flavonoids and total phenolic content), antioxidant capacity (DPPH and ORAC) and physicochem. characteristics of ocorocillo, cambuca, murici da praia and murici do campo, four native South American fruits. A total of 41 volatile compounds were identified in ocorocillo, of which 17 were terpenes. Cambuca’s volatile profile contained aldehydes, aromatic hydrocarbons and alcs. Murici da praia and murici do campo contained high levels of fatty acid volatiles and esters, that contribute to their remarkable aroma. Ocorocillo contained high levels of ascorbic acid and total flavonoids, while presented lower ascorbic acid, flavonoid and phenolic levels. Murici da praia and murici do campo contained high amounts of phenolic compounds and high free-radical scavenging capacity (DPPH and ORAC). In addition, this fruit was sweeter and less acid compared to the other assessed fruits. The results suggest that these native fruits constitute a good source of volatile compounds and bioactive compounds, which may aid in their preservation interest and potential use in the food, cosmetic and pharmaceutical industries.

Plant Foods for Human Nutrition (New York, NY, United States) published new progress about Byrsonima crassifolia. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Computed Properties of 111-11-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Osorio, Pedro R. A. published the artcileEssential oil of Noni, Morinda citrifolia L., fruits controls the rice stem-rot disease without detrimentally affect beneficial fungi and ladybeetles, Formula: C9H18O2, the main research area is Morinda fruit essential oil.

The use of botanical fungicides has been presented as a promising tool to replace the use of synthetic compounds, as the former seems to offer reduced risks to the environment and human health. Here, we characterized the major constituents and evaluated the potential of essential oils of Noni, Morinda citrifolia L. plants for controlling stem-rot disease caused by the fungus Sclerotium rolfsii Catt in Neotropical rice, Oryza sativa L., fields. Using in silico mol. predictions and toxicol. approaches, we further assessed the essential oil selectivity against beneficial organisms such as the fungi Trichoderma asperellum Samuels, Lieckfeldt & Nirenbeand the ladybeetles Eriopis connexa Germar and Coleomegilla maculata DeGeer. Our results revealed that octanoic acid (64.0 %), butanoic acid (10.2 %), and hexanoic acid (8.6 %) were the major oil components. When applied at 30 mg/mL, the essential oil inhibited mycelial growth, whereas at 10 mg/mL, it inhibited the germination of all S. rolfsii sclerotia. The essential oil application at 25 mg/mL reduced disease severity in both curative (56.4 %) and preventive (71.2 %) methods. Essential oil applications (30 mg/mL) did not affect the beneficial fungus T. asperellum nor did it kill any ladybeetle. Our mol. docking analyses reinforced the essential oil selectivity actions predicting higher potential interactions between its major components and the tyrosine-tRNA ligase of S. rolfsii compared to those of T. asperellum. Collectively, our findings demonstrated that Noni essential oil could control S. rolfsii infestations without causing any detrimental effects on relevant beneficial organisms, highlighting its potential as an alternative fungicide.

Industrial Crops and Products published new progress about Coleomegilla maculata. 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, Formula: C9H18O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics