Tag: M.W=150-200

Seguin, Jean-Christophe published the artcileChemical Composition of the Unexplored Volatile Fraction of Betula glandulosa, a Prevalent Shrub in Nunavik, Quebec, Formula: C10H18O, the publication is Chemistry & Biodiversity (2022), 19(2), e202100871, database is CAplus and MEDLINE.

The volatile fraction of the leaves of Betula glandulosaICHX. has been investigated for its secondary metabolite composition by GC/MS and GC/FID. The rapid expansion of this shrub species in subarctic landscapes, like the ones found in Nunavik (Northern Quebec, Canada), highly impacts ecosystem dynamics. Yet, despite its abundance, few phytochem. investigations have yet been conducted on this species. In this study, we present the first phytochem. investigation of the volatile metabolites of B. glandulosa leaves. Although no essential oil was isolated, volatile compounds were extracted from the hydrosol by steam distillation The main metabolites observed were linalool (14.6-19.0 %), C6 oxylipins (known as green leaf volatiles, GLV; total of 18.2-40.2 %), eugenol (1.6-8.6 %) and α-terpineol (3.3-4.8 %). Dwarf birch is an important food source for insects and herbivores, so knowledge of its metabolite composition could help understand parts of its functional role in subarctic ecosystems. The composition of the volatile fraction could serve as marker for differentiating B. glandulosa from other dwarf birch species like Betula nana L.

Chemistry & Biodiversity 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 C17H20ClN3, Formula: C10H18O.

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

Beliaev, Alexandre published the artcileSynthesis and structure-activity relationships of ionizable 1,3,4-oxadiazol-2(3H)-ones as peripherally selective FAAH inhibitors with improved aqueous solubility, Product Details of C10H15NO, the publication is Pure and Applied Chemistry (2016), 88(4), 341-347, database is CAplus.

Novel 5-(2,4-difluorophenoxy)-3-aryl-1,3,4-oxadiazol-2(3H)-ones were prepared and in vivo SAR were discussed. Ionizable substituents on the N-Ph ring provided compounds with significantly improved aqueous solubility In addition, these analogs retained equivalent or improved potency against FAAH enzyme compared to the parent phenols. FAAH inhibition by the 2-(piperazin-1-yl)ethyl and 3-(piperazin-1-yl)propyl derivatives was confined to the periphery in mice (30 mg/kg), whereas hepatic FAAH activity was inhibited by over 90%.

Pure and Applied Chemistry published new progress about 101-98-4. 101-98-4 belongs to alcohols-buliding-blocks, auxiliary class Amine,Benzene,Alcohol, name is 2-(Benzyl(methyl)amino)ethanol, and the molecular formula is C10H15NO, Product Details of C10H15NO.

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

Macchi, Marianela published the artcileAssessing interactions, predicting function, and increasing degradation potential of a PAH-degrading bacterial consortium by effect of an inoculant strain, Related Products of alcohols-buliding-blocks, the publication is Environmental Science and Pollution Research (2019), 26(25), 25932-25944, database is CAplus and MEDLINE.

A natural phenanthrene-degrading consortium CON was inoculated with an exogenous strain Sphingobium sp. (ex Sp. paucimobilis) 20006FA yielding the consortium called I-CON, in order to study ecol. interactions into the bacterial community. DGGE and proteomic profiles and analyses by HTS (High-Throughput Sequencing) technologies demonstrated inoculant establishment and changes on CON composition Inoculation increased degradation efficiency in I-CON and prevented intermediate HNA accumulation. This could be explained not only by the inoculation, but also by enrichment in Achromobacter genus at expense of a decrease in Klebsiella genus. After inoculation, cooperation between Sphingobium and Achromobacter genera were improved, thereby, some competition could have been generated, and as a consequence, species in minor proportion (cheaters), as Inquilinus sp. and Luteibacter sp., were not detected. Sequences of Sphingobium (corresponding to the inoculated strain) did not vary. PICRUSt predicted a network with bacterial phylotypes connected with enzymes, showing functional redundancy in the phenanthrene pathway, with exception of the first enzymes biphenyl-2,3-diol 1,2-dioxygenase and protocatechuate 4,5-dioxygenase that were only encoded in Sphingobium sp. This is the first report where a natural consortium that has been characterized by HTS technologies is inoculated with an exogenous strain in order to study competitiveness and interactions.

Environmental Science and Pollution Research 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, Related Products of alcohols-buliding-blocks.

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

Macchi, Marianela published the artcileDesign and evaluation of synthetic bacterial consortia for optimized phenanthrene degradation through the integration of genomics and shotgun proteomics, Formula: C11H8O3, the publication is Biotechnology Reports (2021), e00588, database is CAplus and MEDLINE.

Two synthetic bacterial consortia (SC) composed of bacterial strains Sphingobium sp. (AM), Klebsiella aerogenes (B), Pseudomonas sp. (Bc-h and T), Burkholderia sp. (Bk) and Inquilinus limosus (Inq) isolated from a natural phenanthrene (PHN)-degrading consortium (CON) were developed and evaluated as an alternative approach to PHN biodegradation in bioremediation processes. A metabolic network showing the potential role of strains was reconstructed by in silico study of the six genomes and classification of dioxygenase enzymes using RHObase and AromaDeg databases. Network anal. suggested that AM and Bk were responsible for PHN initial attack, while Inq, B, T and Bc-h would degrade PHN metabolites. The predicted roles were further confirmed by physiol., RT-qPCR and metaproteomic assays. SC-1 with AM as the sole PHN degrader was the most efficient. The ecol. roles inferred in this study can be applied to optimize the design of bacterial consortia and tackle the biodegradation of complex environmental pollutants.

Biotechnology Reports 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, Formula: C11H8O3.

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

Higgins, Clare L. published the artcileSynthesis, characterisation, and performance evaluation of tri-armed phenolic antioxidants, Product Details of C9H21NO3, the publication is Tetrahedron Letters (2020), 61(28), 152127, database is CAplus.

In this study, a series of core units (glycerol, triethanolamine and triisopropanolamine derivatives) were investigated for their use in tri-armed phenolic antioxidants. The antioxidant ability of these tri-armed phenolic compounds featuring different core units were then evaluated in a hydrocarbon lubricant using differential scanning calorimetry (DSC) and compared to the com. available antioxidants Irganox L135 and Irganox L57. An impressive oxidation induction time of ∼9-12 min was observed for the glycerol based antioxidants when compared to the com. antioxidants (∼4-6 min), whereas in contrast in the case of triethanolamine and triisopropanolamine derived antioxidants, a solubilizing unit was incorporated to provide appropriate solubility within the hydrocarbon medium and revealed an excellent oxidation induction time of ∼11-12 min.

Tetrahedron Letters 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, Product Details of C9H21NO3.

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

Afanasyev, Oleg I. published the artcileDirect Reductive Amination of Camphor Using Iron Pentacarbonyl as Stoichiometric Reducing Agent: Features and Limitations, HPLC of Formula: 6346-09-4, the publication is European Journal of Organic Chemistry (2020), 2020(39), 6289-6294, database is CAplus.

The method of direct reductive amination of camphor and fenchone was proposed. The most effective reducing agent is iron pentacarbonyl. No ligands or solvents are needed. The stereochem. of the corresponding products was determined by HMBC, HSQC, and NOESY spectra. The limitations of the method were shown. The reaction of camphor with primary amines led to exclusively exo product, while the reaction of fenchone led to exclusively endo product. The reaction of camphor with cyclic secondary amines led to the mixture of endo and exo isomers.

European Journal of Organic Chemistry published new progress about 6346-09-4. 6346-09-4 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Ether, name is 4,4-Diethoxybutan-1-amine, and the molecular formula is C8H19NO2, HPLC of Formula: 6346-09-4.

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

Bredikhina, Zemfira A. published the artcileFrom racemic epichlorohydrin to a single enantiomer of the drug timolol maleate, Computed Properties of 30165-97-0, the publication is Tetrahedron: Asymmetry (2015), 26(15-16), 797-801, database is CAplus.

The synthesis for a single enantiomer timolol maleate based on an initial Jacobsen hydrolytic kinetic resolution of racemic epichlorohydrin and on the stereochem. of the subsequent chem. transformations has been proposed. The feature of this synthesis is that both products of the kinetic resolution, (R)-epichlorohydrin and (S)-3-chloropropane-1,2-diol, have been utilized in the synthesis of the target, (S)-timolol (I). The mirror stereochem. results can be obtained with the use of (R,R)-salen Co(III) catalyst instead of (S,S)-salen Co(III).

Tetrahedron: Asymmetry 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, Computed Properties of 30165-97-0.

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

Lu, Xinli published the artcileDetermination of 2-keto-L-gulonic acid in fermented broth by flow injection chemiluminescence using potassium permanganate-rhodamine B system, Product Details of C6H10O7, the publication is Asian Journal of Chemistry (2013), 25(18), 10179-10181, database is CAplus.

In this paper, a flow injection-chemiluminescence (FI-CL) was presented for the determination of 2-keto-L-gulonic acid in fermented broth. This method was based on enhance effect of 2-keto-L-gulonic acid on the chemiluminescence reaction between rhodamine B and potassium permanganate in acid medium. The optimized exptl. conditions were evaluated. Under optimum conditions, calibration curve over the range of 0.2-60 mg L^-1 was obtained. The detection limit of this method was 0.04 mg L^-1. The relative standard deviation was 3.7 % for 2.0 mg L^-1 2-keto-L-gulonic acid. The method validation has been compared vs. HPLC method for determination of 2-keto-L-gulonic acid in fermented broth.

Asian Journal of Chemistry published new progress about 526-98-7. 526-98-7 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Other Sugar Units, name is (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, and the molecular formula is C6H10O7, Product Details of C6H10O7.

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

Wang, Chen published the artcileManipulating the Assembly of Au Nanoclusters for Luminescence Enhancement and Circularly Polarized Luminescence, Safety of 2-Hydroxy-2-phenylacetic acid, the publication is Nanomaterials (2022), 12(9), 1453, database is CAplus and MEDLINE.

Au nanocluster (AuNCs)-based luminescent functional materials have attracted the interest of researchers owing to their small size, tractable surface modification, phosphorescence lifetime and biocompatibility. However, the poor luminescence quantum yield (QY) of AuNCs limits their practical applications. Herein, we synthesized a type of AuNCs modified by 4,6-diamino-2-mercaptopyrimidine hydrate (DPT-AuNCs). Furthermore, organic acids, i.e., citric acid (CA) and tartaric acid (TA), were chosen for co-assembly with DPT-AuNCs to produce AuNCs-based luminescent materials with enhanced emission. Firstly, it was found that CA could significantly enhance the emission of DPT-AuNCs with the formation of red emission nanofibers (QY = 17.31%), which showed a potential for usage in I- detection. The n···π/π···π interaction between the CA and the DPT ligand was proposed as crucial for the emission. Moreover, chiral TA could not only improve the emission of DPT-AuNCs, but could also transfer its chirality to DPT-AuNCs and induce the formation of circularly polarized luminescence (CPL)-active nanofibers. It was demonstrated that the CPL signal could increase 4.6-fold in a ternary CA/TA/DPT-AuNCs co-assembly system. This work provides a convenient way to build AuNCs-based luminescent materials as probes, and opens a new avenue for building CPL-active materials by achiral NCs through a co-assembly strategy.

Nanomaterials 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 C8H8O3, Safety of 2-Hydroxy-2-phenylacetic acid.

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

Xu, Baoguo published the artcileSelection of drying techniques for Pingyin rose on the basis of physicochemical properties and volatile compounds retention, COA of Formula: C10H18O, the publication is Food Chemistry (2022), 132539, database is CAplus and MEDLINE.

Awareness of edible rose being beneficial for health has attracted researchers in exploring different rose products. The study aimed to investigate effects of vacuum freeze drying (VFD), hot air drying (HAD), heat pump drying (HPD), relative humidity drying (RHD) and catalytic IR drying (CID) on the physicochem. properties, and volatile organic compounds (VOCs) of Pingyin roses. Results showed that the VFD roses had significantly (p < 0.05) bright color, complete tissue cells, low shrinkage, and good plasma membrane permeability. CID roses showed the highest total phenols content (164.09 ± 0.88 mg/g) and the strongest antioxidant activity. Besides, the odor is the most crucial indicator for dried roses. VFD can well prevent the odor from diminishing/destroying and preserve the natural smell of rose. Thermal drying including HAD, HPD, RHD, and CID, could cause significant losses of VOCs. Consequently, the findings can provide the scientific basis for future large-scale production of dried rose products.

Food Chemistry 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 C12H10FeO4, COA of Formula: C10H18O.

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