Tag: M.W=150-200

Zhuang, Haining published the artcileIsolation, identification, and application of yeast strains from the local ecosystem of Summer Black vineyard, Recommanded Product: cis-3,7-Dimethyl-2,6-Octadien-1-Ol, the publication is Journal of Food Processing and Preservation (2022), 46(3), e16341, database is CAplus.

Several indigenous yeast strains originating from the local ecosystems of Summer Black vineyard in Jingjiang, Jiangsu, China, were isolated and identified using Wallenstein Laboratory (WL) medium combined with 26S rDNA D1/D2 region sequence anal. The 18 isolated colonies were classified into four different culture types. Two yeast strains were selected for vinification of Summer Black wines, and the volatile compounds were analyzed by headspace solid-phase microextraction-gas chromatog.-mass spectrometry (HS-SPME/GC-MS). 2,3-butanediol, Et octanoate, Et hexanoate, and Et decanoate were the key odor-active compounds The wines vinificated using the two selected yeast strains had higher quantities of identified compounds than that vinificated by com. yeast. The two yeast strains isolated from the local ecosystem of Summer Black vineyard were more effective in producing aroma in Summer Black wines than com. yeast was. This study will give some guidance or fundamental data toward wine making and yeast selection and fermentation Novelty impact statement : Saccharomyces cerevisiae and Brettanomyces bruxellensis were two main strains isolated from local “Summer Black” grape yard located in Jingjiang, Jiangsu Province, China. 2,3-butanediol, Et octanoate, Et hexanoate, and Et decanoate were major contributors to the flavor of the grape wine. The two yeast strains were much more effective in producing aroma in wine than com. yeast strain BV818.

Journal of Food Processing and Preservation published new progress about 106-25-2. 106-25-2 belongs to alcohols-buliding-blocks, auxiliary class Natural product, name is cis-3,7-Dimethyl-2,6-Octadien-1-Ol, and the molecular formula is C18H26ClN3O, Recommanded Product: cis-3,7-Dimethyl-2,6-Octadien-1-Ol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Wang, Jianjun published the artcileTotal Synthesis of (-)-Melanthioidine by Copper-Mediated Cyclodimerization, Product Details of C9H11NO4, the publication is Organic Letters (2016), 18(15), 3542-3545, database is CAplus and MEDLINE.

An efficient asym. total synthesis of the dimeric macrocyclic diaryl ether phenethyltetrahydroisoquinoline alkaloid (-)-melanthioidine is reported. Key steps of the synthesis include an efficient Noyori asym. transfer hydrogenation to access the enantioenriched phenethyltetrahydroisoquinoline monomeric subunit and a copper-mediated cyclodimerization to form the two diaryl ether linkages with concomitant macrocyclization.

Organic Letters published new progress about 528594-30-1. 528594-30-1 belongs to alcohols-buliding-blocks, auxiliary class Nitro Compound,Benzene,Phenol,Ether, name is 2-Methoxy-4-(2-nitroethyl)phenol, and the molecular formula is C6H16OSi, Product Details of C9H11NO4.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Gotz, Tobias published the artcileMolecular Scissors for Tailor-Made Modification of Siloxane Scaffolds, Related Products of alcohols-buliding-blocks, the publication is Chemistry – A European Journal (2022), 28(2), e202103531, database is CAplus and MEDLINE.

The controlled design of functional oligosiloxanes is an important topic in current research. A consecutive Si-O-Si bond cleavage/formation using siloxanes that are substituted with 1,2-diaminobenzene derivatives acting as mol. scissors is presented. The method allows to cut at certain positions of a siloxane scaffold forming a cyclic diaminosilane or -siloxane intermediate and then to introduce new functional siloxy units. The procedure could be extended to a direct one-step cleavage of chlorooligosiloxanes. Both siloxane formation and cleavage proceed with good to excellent yields, high regioselectivity, and great variability of the siloxy units. Control of the selectivity is achieved by the choice of the amino substituent. Insight into the mechanism was provided by low temperature NMR studies and the isolation of a lithiated intermediate.

Chemistry – A European Journal published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Esguerra, Kenneth Virgel N. published the artcileA biomimetic catalytic aerobic functionalization of phenols, Category: alcohols-buliding-blocks, the publication is Angewandte Chemie, International Edition (2014), 53(23), 5877-5881, database is CAplus and MEDLINE.

A biomimetic approach that converts phenolic C-H bonds into C-O, C-N, and C-S bonds at the sole expense of reducing O₂ to water (H₂O) was reported. This method hinges on a regio- and chemoselective Cu-catalyzed aerobic oxygenation to provide orthoquinones. Orthoquinones are versatile intermediates, whose direct catalytic aerobic synthesis from phenols enables a mild and efficient means of synthesizing polyfunctional aromatic rings.

Angewandte Chemie, International Edition published new progress about 27292-49-5. 27292-49-5 belongs to alcohols-buliding-blocks, auxiliary class Morpholine,Benzene,Phenol, name is 3-Morpholinophenol, and the molecular formula is C10H13NO2, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Lin, Zechao published the artcileDesign, Synthesis, and Characterization of Binaphthalene Precursors as Photoactivated DNA Interstrand Cross-Linkers, Category: alcohols-buliding-blocks, the publication is Journal of Organic Chemistry (2018), 83(16), 8815-8826, database is CAplus and MEDLINE.

Most recently, alkylation via photo-generated carbocations has been identified as a novel mechanism for photo-induced DNA interstrand crosslink (ICL) formation by bifunctional aryl compounds However, most compounds showed a low efficiency for DNA crosslinking. Here, the authors have developed a series of new 1,1′-binaphthalene analogs that efficiently form DNA ICLs upon 350 nm irradiation via generated 2-naphthalenylmethyl cations. The DNA crosslinking efficiency depends on the substituents at the position-4 of the naphthalene moiety as well as the leaving groups. Compounds with NO2, Ph, H, Br, or OMe substituents led to 2-4 times higher DNA ICL yields than those with a boronate ester group. Compounds having tri-Me ammonium salt as a leaving group showed slightly better crosslinking efficiency than those with bromo as a leaving group. Some of these compounds showed a better crosslinking efficiency than that of traditional alkylating agents, such as nitrogen mustard analogs or quinone methide precursors. These highly efficient photo-activated carbocation precursors allow determination and characterization of the adducts formed between the photo-generated naphthalenyl cations and four natural nucleosides, indicating that the alkylation sites for these naphthalene analogs are dG, dA, and dC.

Journal of Organic Chemistry published new progress about 86-48-6. 86-48-6 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment,Natural product, name is 1-Hydroxy-2-naphthoic acid, and the molecular formula is C11H8O3, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Liang Teo, Alan Kay published the artcileA novel iron complex for highly efficient catalytic hydrogen generation from the hydrolysis of organosilanes, Application of Triisopropylsilanol, the publication is Chemical Communications (Cambridge, United Kingdom) (2014), 50(54), 7191-7194, database is CAplus and MEDLINE.

Hydrolytic oxidation of organosilanes based on an iron catalyst is described for the first time. The novel iron complex, [Fe(C₆H₅N₂O)(CO)(MeCN)₃][PF₆], exhibits excellent mediating power in the catalytic hydrolysis of organosilanes to produce dihydrogen and organosilanols with turnover numbers approaching 10⁴ and turnover frequencies in excess of 10² min^-1 under ambient conditions.

Chemical Communications (Cambridge, United Kingdom) published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Application of Triisopropylsilanol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Yang, Jing published the artcileSynthesis of Nitrogen-doped Carbon Nanodots from Tri-isopropanolamine and the Application in Cell Imaging, Synthetic Route of 122-20-3, the publication is ChemistrySelect (2022), 7(27), e202201641, database is CAplus.

As an emerging nano-functional material, fluorescent carbon nanodots (CDs) have made breakthroughs in many fields. In our research, graphite-like nitrogen-doped carbon nanodots (N-CDs) with excellent down- and up-conversion fluorescent properties were synthesized by a facile one-step solvothermal method using tri-isopropanolamine (TIPA) as carbon and nitrogen sources. Mean particle diameter from 2.85 to 5.62 nm can be obtained by controlling the amount of HNO3 during synthesis. With low cytotoxicity and excellent fluorescence properties, the prepared N-CDs can well label HeLa cells, which has great potential in the field of cell imaging. This work could enrich the research on the preparation and application of N-CDs.

ChemistrySelect published new progress about 122-20-3. 122-20-3 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment, name is Triisopropanolamine, and the molecular formula is C5H10O2S, Synthetic Route of 122-20-3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Sorouraddin, Saeed Mohammad published the artcileDeep eutectic solvent-based air-assisted liquid-liquid microextraction of lead in gasoline samples followed by graphite furnace atomic absorption spectrometry, Formula: C8H8O3, the publication is Journal of the Iranian Chemical Society (2022), 19(6), 2591-2599, database is CAplus.

This paper describes determination of lead in gasoline by graphite furnace at. absorption spectrometry after application of an air-assisted liquid-liquid microextraction method using deep eutectic solvent. In this study, for the first time, a ternary deep eutectic solvent was synthesized from menthol, mandelic acid, and glycolic acid and was used as a complexing agent and an extraction solvent, simultaneously. Under optimized conditions, the proposed method made possible the determination of lead in the range of 5-50 ng L^-1 with a good linearity. The obtained detection and quantification limits were 1.6 and 5.0 ng L^-1, resp. Moreover, enrichment factor and extraction recovery values were 166 and 91.3%, resp. The optimized and developed method was successfully used for the determination of lead in various gasoline samples.

Journal of the Iranian Chemical Society published new progress about 90-64-2. 90-64-2 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Alcohol,Natural product, name is 2-Hydroxy-2-phenylacetic acid, and the molecular formula is C17H14F3N3O2S, Formula: C8H8O3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Bodor, Nicholas published the artcileImproved delivery through biological membranes. 26. Design, synthesis, and pharmacological activity of a novel chemical delivery system for β-adrenergic blocking agents, Application In Synthesis of 30165-97-0, the publication is Journal of Medicinal Chemistry (1988), 31(1), 100-6, database is CAplus and MEDLINE.

Novel ketoxime analogs, e.g., I and II, of known β-blockers (propranolol, timolol, carteolol) were synthesized and tested as potential site-specific chem. delivery systems. It was assumed that a hydrolysis-reduction sequence could produce the active β-blockers in the iris-ciliary body. Some of these bioprecursors are remarkably active in reducing intraocular pressure in rabbits. I is more effective and a much less irritant than its parent β-blocker. While the ketoximes also displayed activity on isoprenaline-induced tachycardia after i.v. administration, they were void of activity when given orally. Propranolol was found for a prolonged time and in significant concentrations in the rabbit’s eye following topical administration of I; however, the inactive ketoximes apparently were not converted to the corresponding β-blockers in the eye. A correlation was found between the physicochem. properties of the ketoximes and their conversion to the amino alc. and thus their subsequent activity. The results suggest that at least some of the ketoxime precursors could have a use as antiglaucoma agents without systemic side effects.

Journal of Medicinal Chemistry published new progress about 30165-97-0. 30165-97-0 belongs to alcohols-buliding-blocks, auxiliary class Morpholine,Thiadiazole,Alcohol, name is 4-Morpholino-1,2,5-thiadiazol-3-ol, and the molecular formula is C6H9N3O2S, Application In Synthesis of 30165-97-0.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Refaee, Ayaat A. published the artcileNano-bio finishing of cotton fabric with quaternized chitosan Schiff base-TiO₂-ZnO nanocomposites for antimicrobial and UV protection applications, Safety of Triisopropanolamine, the publication is European Polymer Journal (2022), 111040, database is CAplus.

The purpose of this work is to offer a novel approach to designing multifunctional tech. cotton textiles by coating them with smart bio-materials. Two different ternary nanocomposites (NC1, NC2) comprising (ammonium-salicylidene) chitosan Schiff base (ASCSB), TiO₂, and ZnO nanoparticles were in-situ prepared and applied for treating cotton fibers using the facile pad-dry-cure process to impart antimicrobial and UV protection characteristics. Notably, NC1 is TiO₂-rich, while NC2 is rich in ZnO. The physicochem. and visual characteristics of the new nanocomposites and the treated fabrics were investigated by spectral, microscopic, and thermal methods. The as-prepared NC1 exhibited a more homogeneous distribution, higher depositing d. and smaller mean nanoparticle size (48 nm) when compared to NC2 (56 nm). In contrast, NC2-treated fabrics showed a higher depositing d. of nanoparticles than NC1-treated ones. The treated cotton fibers demonstrated strong and sustainable antimicrobial impacts on S. aureus, E. coli, and C. albicans pathogens, with more effective performance for NC2-treated textiles in comparison to NC1-treated fabrics. The NC2-remediated cotton fabrics demonstrated a higher UV protection factor (UPF) value (53) as compared to NC1-coated fabrics (35), indicating that the ZnO-rich nanocomposite endowed cotton fabrics with more UV protection than TiO₂-rich nanocomposite.

European Polymer Journal published new progress about 122-20-3. 122-20-3 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment, name is Triisopropanolamine, and the molecular formula is C9H21NO3, Safety of Triisopropanolamine.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts