Tag: M.W=300-350

Kulkarni, Durga D. published the artcileImproving tactile properties of vegetable oils with vegetable oil-based esters, Formula: C20H40O2, the publication is Cosmetics & Toiletries (2009), 124(12), 50, 52-56, database is CAplus.

Vegetable oil-based esters are shown by the authors to improve the tactile attributes of vegetable oil by lowering its viscosity and improving its spreadability, in addition to providing environmentally friendly options for cosmetic chemists.

Cosmetics & Toiletries published new progress about 110-34-9. 110-34-9 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester, name is Isobutyl palmitate, and the molecular formula is C20H40O2, Formula: C20H40O2.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Berger, Ralf G. published the artcileThe flavor of cape gooseberry (Physalis peruviana L.), SDS of cas: 110-34-9, the publication is Zeitschrift fuer Lebensmittel-Untersuchung und -Forschung (1989), 188(2), 122-6, database is CAplus.

The volatile constituents of cape gooseberry (P. peruviana) were characterized after liquid/liquid extraction and fractionation of the flavor concentrates on SiO₂ gel by high resolution gas chromatog. and coupled gas chromatog.-mass spectrometry. Sniffing gas chromatog. on serially diluted extracts showed Me 2-methylbutyrate, 2,5-dimethyl-4-hydroxy-3(2H)-furanone and its 4-methoxy derivative, 4- and 5-octanolide, β-ionone, and β-damascenone to be impact components. The nonvolatile flavor fraction contained glucose, fructose, sucrose, citric acid, and smaller amounts of organic aliphatic and benzoic acids. The bound forms of volatiles were dominated by benzyl alc., 2-methylpropanol, and 2-methylbutanol. The presence of high amounts of activated acyl moieties in the fruit was concluded indirectly from various data.

Zeitschrift fuer Lebensmittel-Untersuchung und -Forschung published new progress about 110-34-9. 110-34-9 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester, name is Isobutyl palmitate, and the molecular formula is C20H40O2, SDS of cas: 110-34-9.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Sen, Supriyo published the artcileChemometric analysis reveals links in the formation of fragrant bio-molecules during agarwood (Aquilaria malaccensis) and fungal interactions, Application of Isobutyl palmitate, the publication is Scientific Reports (2017), 44406, database is CAplus and MEDLINE.

Fragrant agarwood, arguably the costliest wood in the world, is formed by plant-fungal interactions in Aquilaria spp. However, very little is known about this fragrant outcome of interaction. Therefore, mimicking the ancient traditions of agarwood production in Assam (Northeast India), a chemometric assessment of the agarwood-fungus interaction was made by chem. profiling (GC-MS) coupled with statistical anal. (principal component, correlation network anal.) across three platforms, viz. callus, juvenile plants and resinous wood-chips with an associated Fusarium. In the study of callus-fungus interaction, increased accumulation of key aroma compounds such as pentatriacontane {fold change (log2FC) = 3.47}, 17-pentatriacontene (log2FC = 2.95), tetradecane, 2-methyl- (log2FC = 1.10) over callus and activation of pathways related to defense and secondary metabolism indicated links to aroma production Study on fungal interactions in juvenile plants and resinous wood-chips indicated formation of terpenoid precursors (e.g. farnesol, geranylgeraniol acetate) and agarwood sesquiterpenes (e.g. agarospirol, γ-eudesmol). Correlation network anal. revealed the possible regulation of sesquiterpene biosynthesis involving squalene. Also a direct role of fungus in aroma (e.g. dodecane, 4-methyl-, tetracosane) was highlighted. Appearance of fragrant mols. unknown to agarwood during interaction featured as a new possibility for future research.

Scientific Reports published new progress about 110-34-9. 110-34-9 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester, name is Isobutyl palmitate, and the molecular formula is C9H7NO3, Application of Isobutyl palmitate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Garcia, T. published the artcileOptimization of the enzymic synthesis of isobutyl palmitate using a central composite design, HPLC of Formula: 110-34-9, the publication is Food and Bioproducts Processing (1995), 73(C3), 140-4, database is CAplus.

The process of synthesis of iso-Bu palmitate using the immobilized lipase SP-435L as catalyst has been developed and optimized following factorial design and response surface methodol. A second-order model has been developed to predict ester conversion as a function of temperature and enzyme concentration The model has been found to describe the exptl. results adequately. According to this model, maximum ester conversions are obtained at high enzyme concentration and medium temperature

Food and Bioproducts Processing published new progress about 110-34-9. 110-34-9 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester, name is Isobutyl palmitate, and the molecular formula is C20H40O2, HPLC of Formula: 110-34-9.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Pujol, Anais M. published the artcileA sulfur tripod glycoconjugate that releases a high-affinity copper chelator in hepatocytes, Category: esters-buliding-blocks, the publication is Angewandte Chemie, International Edition (2012), 51(30), 7445-7448, S7445/1-S7445/24, database is CAplus and MEDLINE.

Th authors developed glycoconjugates 1 from a tripodal Cu¹ chelator L² derived from nitrilotriacetic acid (NTA) by an extension with three cysteines, which exhibits an affinity for Cu¹ as high as that of metallothioneins, and a ligand of the asialoglycoprotein receptor (ASGP-R), and the Cu-chelating property in vitro and efficiency in two hepatic cell lines were tested. The results showed that the glycoconjugate 1 can be considered as a vector delivering L², the active compound, at the right place to chelate excess Cu₁. For the Wilson’s disease patients, 1 could represent an interesting concept of a prodrug to be further developed.

Angewandte Chemie, International Edition published new progress about 10378-06-0. 10378-06-0 belongs to esters-buliding-blocks, auxiliary class Other Aliphatic Heterocyclic,Chiral,Ester,Inhibitor,Inhibitor, name is (3aR,5R,6R,7R,7aR)-5-(Acetoxymethyl)-2-methyl-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d]oxazole-6,7-diyl diacetate, and the molecular formula is C14H19NO8, Category: esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wang, Shuo published the artcileCharacterization of two UDP-Gal:GalNAc-diphosphate-lipid β1,3-galactosyltransferases WbwC from Escherichia coli serotypes O104 and O5, Computed Properties of 10378-06-0, the publication is Journal of Bacteriology (2014), 196(17), 3122-3133, 13 pp., database is CAplus and MEDLINE.

Escherichia coli displays O antigens on the outer membrane that play an important role in bacterial interactions with the environment. The O antigens of enterohemorrhagic E. coli O104 and O5 contain a Galβ1-3GalNAc disaccharide at the reducing end of the repeating unit. Several other O antigens contain this disaccharide, which is identical to the mammalian O-glycan core 1 or the cancer-associated Thomsen-Friedenreich (TF) antigen. We identified the wbwC genes responsible for the synthesis of the disaccharide in E. coli serotypes O104 and O5. To functionally characterize WbwC, an acceptor substrate analog, GalNAcα-diphosphate-phenylundecyl, was synthesized. WbwC reaction products were isolated by high-pressure liquid chromatog. and analyzed by mass spectrometry, NMR, galactosidase and O-glycanase digestion, and anti-TF antibody. The results clearly showed that the Galβ1-3GalNAcα linkage was synthesized, confirming WbwCECO104 and WbwCECO5 as UDP-Gal:GalNAcα-diphosphate-lipid β1,3-Gal-transferases. Sequence anal. revealed a conserved DxDD motif, and mutagenesis showed the importance of these Asp residues in catalysis. The purified enzymes require divalent cations (Mn2+) for activity and are specific for UDP-Gal and GalNAc-diphosphate lipid substrates. WbwC was inhibited by bis-imidazolium salts having aliphatic chains of 18 to 22 carbons. This work will help to elucidate mechanisms of polysaccharide synthesis in pathogenic bacteria and provide technol. for vaccine synthesis.

Journal of Bacteriology published new progress about 10378-06-0. 10378-06-0 belongs to esters-buliding-blocks, auxiliary class Other Aliphatic Heterocyclic,Chiral,Ester,Inhibitor,Inhibitor, name is (3aR,5R,6R,7R,7aR)-5-(Acetoxymethyl)-2-methyl-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d]oxazole-6,7-diyl diacetate, and the molecular formula is C12H20O6, Computed Properties of 10378-06-0.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wang, Shuo published the artcileCharacterization of two UDP-Gal:GalNAc-diphosphate-lipid β1,3-galactosyltransferases WbwC from Escherichia coli serotypes O104 and O5, Recommanded Product: (3aR,5R,6R,7R,7aR)-5-(Acetoxymethyl)-2-methyl-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d]oxazole-6,7-diyl diacetate, the publication is Journal of Bacteriology (2014), 196(17), 3122-3133, 13 pp., database is CAplus and MEDLINE.

Escherichia coli displays O antigens on the outer membrane that play an important role in bacterial interactions with the environment. The O antigens of enterohemorrhagic E. coli O104 and O5 contain a Galβ1-3GalNAc disaccharide at the reducing end of the repeating unit. Several other O antigens contain this disaccharide, which is identical to the mammalian O-glycan core 1 or the cancer-associated Thomsen-Friedenreich (TF) antigen. The authors identified the wbwC genes responsible for the synthesis of the disaccharide in E. coli serotypes O104 and O5. To functionally characterize WbwC, an acceptor substrate analog, GalNAcα-diphosphate-phenylundecyl, was synthesized. WbwC reaction products were isolated by HPLC and analyzed by mass spectrometry, NMR, galactosidase and O-glycanase digestion and anti-TF antibody. The Galβ1-3GalNAcα linkage was synthesized, confirming WbwCECO104 and WbwCECO5 as UDP-Gal:GalNAcα-diphosphate-lipid β1,3-Gal-transferases. Sequence anal. revealed a conserved DxDD motif and mutagenesis showed the importance of these Asp residues in catalysis. The purified enzymes require divalent cations (Mn²⁺) for activity and are specific for UDP-Gal and GalNAc-diphosphate lipid substrates. WbwC was inhibited by bis-imidazolium salts having aliphatic chains of 18 to 22 carbons. This work will help to elucidate mechanisms of polysaccharide synthesis in pathogenic bacteria and provide technol. for vaccine synthesis.

Journal of Bacteriology published new progress about 10378-06-0. 10378-06-0 belongs to esters-buliding-blocks, auxiliary class Other Aliphatic Heterocyclic,Chiral,Ester,Inhibitor,Inhibitor, name is (3aR,5R,6R,7R,7aR)-5-(Acetoxymethyl)-2-methyl-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d]oxazole-6,7-diyl diacetate, and the molecular formula is C8H7NO4, Recommanded Product: (3aR,5R,6R,7R,7aR)-5-(Acetoxymethyl)-2-methyl-5,6,7,7a-tetrahydro-3aH-pyrano[3,2-d]oxazole-6,7-diyl diacetate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Griffith, W. L. published the artcileNovel neutral solvents fermentations, Related Products of esters-buliding-blocks, the publication is Developments in Industrial Microbiology Series (1983), 347-52, database is CAplus.

Earlier fermentations producing neutral solvents generally have been single-stage batch fermentations with distillation for product recovery. One step in this group of fermentations, the production of BuOH [71-36-3], provides the major rate and concentration limitation of the product. The organic/aqueous distribution coefficients of a number of potential BuOH extractants were measured and tested several in culture. The most effective appeared to be polyoxyalkylene ethers, which had distribution coefficients in the range of 1.5-3 and showed little or no fermentation toxicity. The esters and alcs. tested generally had better distribution coefficients but higher biotoxicity. Pressurization of the fermentation vessel with H₂ appeared to decrease, rather than increase, the formation of neutral solvents.

Developments in Industrial Microbiology Series published new progress about 110-34-9. 110-34-9 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester, name is Isobutyl palmitate, and the molecular formula is C20H40O2, Related Products of esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wang, Guanghui published the artcileN,B-Bidentate Boryl Ligand-Supported Iridium Catalyst for Efficient Functional-Group-Directed C-H Borylation, Product Details of C15H18BF3O4, the publication is Journal of the American Chemical Society (2017), 139(1), 91-94, database is CAplus and MEDLINE.

Convenient silylborane precursors for introducing N,B-bidentate boryl ligands onto transition metals were designed, prepared, and employed in ready formation of iridium(III) complexes via Si-B oxidative addition A practical, efficient catalytic ortho-borylation reaction of arenes with a broad range of directing groups was developed using an in situ generated catalyst from the silylborane preligand 3c and [IrCl(COD)]₂.

Journal of the American Chemical Society published new progress about 1146214-86-9. 1146214-86-9 belongs to esters-buliding-blocks, auxiliary class Boronic acid and ester, name is Methyl 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)benzoate, and the molecular formula is C15H24S, Product Details of C15H18BF3O4.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Nan, Li-jun published the artcileEffect of trellises on aroma compounds of dry white wines, Recommanded Product: Isobutyl palmitate, the publication is Shipin Kexue (Beijing, China) (2014), 35(4), 101-106, database is CAplus.

The aim of this study was to establish a new pruning system for dormant grapevines. The traditional independent long-stem pruning (ILSP) was used as control to compare the effect of single crawled cordon training (SCCT) on the aroma compounds of Ecolly dry white wine. The aroma compounds of dry white wines from Ecolly grapes harvested at three time points (80, 90 and 120 days) after anthesis were extracted by solid-phase micro-extraction and analyzed by gas chromatog.-mass spectrometry (GC-MS). A total of 30 compounds with contents ranging from 3.9 μg to 1.5311 mg and a total amount of 14.0407 mg were identified in these wine samples. Esters were accumulated mainly by ILSP except for ethanol esters at 80 days after anthesis. SCCT led to higher contents of higher alcs., ethanol esters and organic acids than ILSP at 80 days after anthesis whereas ILSP wines brewed at 120 days after anthesis displayed more complex aroma characteristics. SCCT could improve the earlier accumulation of aroma compounds in wine and guarantee the stable yield and quality of wine, thereby favoring the sustainable development of wine industry.

Shipin Kexue (Beijing, China) published new progress about 110-34-9. 110-34-9 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester, name is Isobutyl palmitate, and the molecular formula is C20H40O2, Recommanded Product: Isobutyl palmitate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics