Tag: M.W=150-200

Fausto, Catia published the artcileDifferential olive grove management regulates the levels of primary metabolites in xylem sap, Recommanded Product: 3-Hydroxyphenylacetic acid, the publication is Plant and Soil (2021), 460(1-2), 281-296, database is CAplus.

Aims: The conventional management adopted in many Mediterranean olive orchards makes them more vulnerable to climate change and attacks by pathogens, due to the decreased chem. plant defenses. In this scenario, a metabolomic anal. was carried out on the xylem sap (Xsap) of olive plants (Olea europaea L.) grown in the Salento peninsula (Italy). Trials were carried out in two olive groves, one organically and one conventionally managed (controls), successively both converted to sustainable management (i.e. frequent light pruning, soil and foliar fertilization, cover crops). The Xsap was extracted from the shoots of olive plants using a Scholander pressure chamber pressurized with N2 and gas chromatog.-mass spectrometry metabolite profiling was performed in the Xsap. An untargeted gas chromatog. mass spectrometry (GC-MS) based metabolomic anal. of primary metabolites (including underivatized volatiles) of the Xsap revealed relative abundances of 153 identified metabolites and 336 unknown features across the 12 samples from four groups of samples. Among them, more than half were involved in the primary metabolism Many of the compounds with increased levels under sustainable management (such as amino acids, soluble sugars, sugar alcs.) have a well-known role as osmoprotectants or are involved in plant defense, growth and development during stress or recovery stages. Sustainable management in olive groves can increase the ability of plants to overcome environmental stressors and enhance ecosystem balance.

Plant and Soil published new progress about 621-37-4. 621-37-4 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Phenol,Natural product, name is 3-Hydroxyphenylacetic acid, and the molecular formula is C8H8O3, Recommanded Product: 3-Hydroxyphenylacetic acid.

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

Clery, Robin A. published the artcileChemical Diversity of Citrus Leaf Essential Oils, COA of Formula: C10H18O, the publication is Chemistry & Biodiversity (2022), 19(3), e202100963, database is CAplus and MEDLINE.

The essential oils from leaves of 20 com. citrus accessions maintained by the University of California, Riverside Givaudan Citrus Variety Collection and selected on the basis of their odor profile were analyzed by GCMS/FID. The main components were quantified while the semi-quant. percentage composition data was compiled with data from other publications for sample visualization, classification and comparison with leaf oils from other citrus accessions. Some compositional clusters aligned closely with the taxonomic clades of sweet orange, bitter orange, and C. hystrix while other clades like the mandarins and lemons showed distinct chem. sub-groups. Characteristic compounds for the clusters included linalyl acetate and linalool (bitter orange leaf), sabinene (sweet orange leaf), Me N-Me anthranilate (mandarin leaf), γ-terpinene (yuzu leaf), citronellal (C. hystrix), limonene, citronellal and citral (lemons and citrons). A chemometric approach combined with t-SNE cluster plots can be more informative than taxonomic assignments when considering flavor and fragrance characteristics.

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 C10H18O, COA of Formula: C10H18O.

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

Koester, Roland published the artcileReactions of methylenecyclopropane. I. Halogenation, hydrohalogenation, and hydroxybromination, Synthetic Route of 50915-29-2, the publication is Justus Liebigs Annalen der Chemie (1973), 1619-27, database is CAplus.

The reactions of methylenecyclopropane with Cl, Br, HCl, HBr, and HOBr at 0 to -78° were investigated. The influence of LiBr, hydroquinone, and Bz2O2 on the halogenations and of Lewis acids, e.g., FeCl3 or SnCl4, on the hydrohalogenations was examined With Cl and HCl ring opening predominated, yielding CH2:C(CH2Cl)2 and CH2:CMeCH2Cl, resp. Reaction with Br preferentially afforded 1-bromo-1-(bromomethyl)cyclopropane (I). Hydroxybromination gave only 1-bromo-1-(hydroxymethyl)cyclopropane (II). Reduction of I or the tosylate of II with NaBHEt3 gave 1-bromo-1-methyl-cyclopropane.

Justus Liebigs Annalen der Chemie published new progress about 50915-29-2. 50915-29-2 belongs to alcohols-buliding-blocks, auxiliary class Cyclopropanes, name is (1-Bromocyclopropyl)methanol, and the molecular formula is C4H7BrO, Synthetic Route of 50915-29-2.

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

Escobar-Martinez, Ivan published the artcileAdministration Time Significantly Affects Plasma Bioavailability of Grape Seed Proanthocyanidins Extract in Healthy and Obese Fischer 344 Rats, COA of Formula: C8H8O3, the publication is Molecular Nutrition & Food Research (2022), 66(3), 2100552, database is CAplus and MEDLINE.

Phenolic compounds are bioactive mols. that are associated with several health benefits. Metabolization and absorption are the main determinants of their bioavailability and bioactivity. Thus, the study of the factors that modulate these processes, such as sex or diet is essential. Recently, it has been shown that biol. rhythms may also play a key role. Hence, the aim of this study is to evaluate if the bioavailability of a grape proanthocyanidin extract (GSPE) is affected by the administration time in an animal model of metabolic syndrome (MetS). Methods and Results : Female and male Fischer 344 rats are fed either a standard or a cafeteria diet (CAF) for 9 wk, and an oral dose of GSPE (25 mg kg-1) is daily administered either at 8:00 am (zeitgeber time (ZT)-0) or at 8:00 pm (ZT-12) during the last 4 wk. Plasma phenolic compounds are then quantified by liquid chromatog./electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS). Phase-II and gut microbiota-derived phenolic metabolites are affected by ZT in all conditions or only in obese rats, resp. CAF feeding affected the bioavailability of phenolic acids and free flavan-3-ols. Differences due to sex are also observed These findings demonstrate that ZT, diet, and sex are key factors influencing phenolic compounds bioavailability.

Molecular Nutrition & Food Research published new progress about 621-37-4. 621-37-4 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Phenol,Natural product, name is 3-Hydroxyphenylacetic acid, and the molecular formula is C8H8O3, COA of Formula: C8H8O3.

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

Rudke, Adenilson Renato published the artcileA comparative study of phenolic compounds profile and in vitro antioxidant activity from buriti (Mauritia flexuosa) by-products extracts, Synthetic Route of 90-64-2, the publication is LWT–Food Science and Technology (2021), 111941, database is CAplus.

In general, buriti seeds (BSE) and buriti shells (BSH) are discarded or used as animal feed. However, these materials may have other destinations. Therefore, the aim of this work was to obtain extracts from BSE and BSH using different extraction techniques and solvents in order to evaluate their effects on phenolic profile and antioxidant capacity of the recovered extracts Global yield, total phenolic content (TPC), in vitro antioxidant activities, and phenolic composition accessed by LC-ESI-MS/MS were evaluated. Principal component anal. (PCA) was used as a tool to correlate the observed data. Raw material, solvent type, and extraction method influenced the obtained results mainly in relation to the phenolic composition BSH showed higher values of global yield, antioxidant activity, and TPC, compared to BSE. Considering the 46 phenolic compounds analyzed, 28 were quantified from BSE and 33 from BSH samples. Protocatechuic acid was the major phenolic compound found in most samples, except for the BSH extract obtained with pressurized liquid extraction (PLE), which presented quercetin as the main phenolic compound PCA anal. demonstrated that flavonoids are most associated with the BSH, while phenolic acids and phenolic aldehydes are most related to BSE samples.

LWT–Food Science and Technology 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, Synthetic Route of 90-64-2.

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

Lopes, Ana Claudia Alencar published the artcileProduction and characterization of a new distilled beverage from green coffee seed residue, Computed Properties of 106-25-2, the publication is Food Chemistry (2022), 131960, database is CAplus and MEDLINE.

This study evaluated green coffee seed residue (GCSR) as an alternative substrate for producing distilled beverages. Two proportions of GCSR, 10% and 20% (w/v), were fermented and distilled in a copper alembic still. The spirits were characterized by GC-FID, HS-SPME GC-MS, and sensory anal. by trained panelists. Most of the 62 identified volatile compounds were affected by the GCSR concentration Total terpenes, higher alcs., and acetals showed the highest concentrations in the 10% GCSR spirit. Esters, acetates, and aldehydes were most abundant in the 20% GCSR. In the sensory anal., the 10% GCSR spirit was characterized by floral, dairy, and almond aromas, while the 20% GCSR spirit was embodied coffee, vegetable, hazelnut, cooked cabbage, and nut descriptors. The results demonstrate the potential of GCSR as a substrate for producing coffee spirits with chem. and sensory qualities, with the 10% GCSR being the better option for fermentation

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 C10H18O, Computed Properties of 106-25-2.

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

Fernandes, Tiago A. published the artcileMild homogeneous oxidation and hydrocarboxylation of cycloalkanes catalyzed by novel dicopper(II) aminoalcohol-driven cores, Related Products of alcohols-buliding-blocks, the publication is Journal of Molecular Catalysis A: Chemical (2017), 426(Part_B), 357-367, database is CAplus.

N-benzylethanolamine (Hbea) and triisopropanolamine (H₃tipa) were applied as unexplored aminoalc. N,O-building blocks for the self-assembly generation of two novel dicopper(II) compounds, [Cu₂(μ-bea)₂(Hbea)₂](NO₃)₂ (1) and [Cu₂(H₃tipa)₂(μ-pma)]·7H₂O (2) {H₄pma = pyromellitic acid}. These were isolated as stable and aqua-soluble microcrystalline products and were fully characterized by IR spectroscopy, ESI-MS(±), and single-crystal X-ray diffraction, the latter revealing distinct Cu₂ cores containing the five-coordinate copper(II) centers with the {CuN₂O₃} or {CuNO₄} environments. Compounds 1 and 2 were used as homogeneous catalysts for the mild oxidation of C5-C8 cycloalkanes to give the corresponding cyclic alcs. and ketones in up to 23% overall yields based on cycloalkane. The reactions proceed in aqueous acetonitrile medium at 50 °C using H₂O₂ as an oxidant. The effects of different reaction conditions were studied, including the type and loading of catalyst, amount and kind of acid promoter, and water concentration Despite the fact that different acids (HNO₃, H₂SO₄, HCl, or CF₃COOH) promote the oxidation of alkanes, the reaction is exceptionally fast in the presence of a catalytic amount of HCl, resulting in the TOF values of up to 430 h^-1. Although water typically strongly inhibits alkane oxidations due to the reduction of H₂O₂ concentration and lowering of the alkane solubility, in the systems comprising 1 and 2 we observed a significant growth (up to 5-fold) of an initial reaction rate in the cyclohexane oxidation on increasing the amount of H₂O in the reaction mixture The bond-, regio- and stereo-selectivity parameters were investigated in oxidation of different linear, branched, and cyclic alkane substrates. Both compounds 1 and 2 also catalyze the hydrocarboxylation of C5-C8 cycloalkanes, by CO, K₂S₂O₈, and H₂O in a water/acetonitrile medium at 60 °C, to give the corresponding cycloalkanecarboxylic acids in up to 38% yields based on cycloalkanes.

Journal of Molecular Catalysis A: Chemical 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, Related Products of alcohols-buliding-blocks.

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

Smolobochkin, A. V. published the artcileSynthesis of 1-(arylsulfonyl)pyrrolidines from aryl alcohols and 1-[(4-chlorophenyl)sulfonyl]-2-ethoxypyrrolidine, Formula: C8H19NO2, the publication is Russian Journal of Organic Chemistry (2017), 53(2), 199-202, database is CAplus.

Acid-catalyzed reaction of 1-[(4-chlorophenyl)sulfonyl]-2-ethoxypyrrolidine with aryl alcs. led to the formation of new 1-(arylsulfonyl)pyrrolidines. The reaction proceeded under mild conditions and might be used as a convenient method for the synthesis of pyrrolidine-1-sulfonylarene derivatives containing a phenol fragment in the position 2.

Russian 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 C9H10O4, Formula: C8H19NO2.

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

Smolobochkin, A. V. published the artcileReaction of 4-Chloro-6-[1-(vinylsulfonyl)pyrrolidin-2-yl]benzene-1,3-diol with Some Amines, Computed Properties of 6346-09-4, the publication is Russian Journal of General Chemistry (2018), 88(1), 131-135, database is CAplus.

4-Chloro-6-[1-(vinylsulfonyl)pyrrolidin-2-yl]benzene-1,3-diol prepared by the reaction of 2-ethoxypyrrolidine with 4-chlororesorcinol was introduced into the aza-Michael reaction with various amines which led to the formation of new 1-sulfonyl-2-arylpyrrolidines.

Russian Journal of General 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 C7H6Cl2, Computed Properties of 6346-09-4.

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

Kondratenko, Yulia A. published the artcileSynthesis, crystal structure and properties of tris(2-hydroxypropyl)ammonium based protic ionic liquids and protic molten salts, Quality Control of 122-20-3, the publication is Journal of Molecular Liquids (2021), 114717, database is CAplus.

Fifteen tris(2-hydroxypropyl)ammonium salts (TPA salts) were first synthesized by a direct reaction of proton transfer from carboxylic acids to tris(2-hydroxypropyl)amine. The composition and structure of synthesized TPA salts were confirmed by NMR (¹H, ¹³C), FT-IR spectroscopy and elemental anal. The crystal structure and conformation of the tris(2-hydroxypropyl)ammonium cation in salts of salicylic, nicotinic and malonic acids were studied by single-crystal X-ray diffraction. Thermal stability studies had shown that TPA salts were protic ionic liquids with melting temperatures below 100°C or room-temperature ionic liquids or molten salts. Selected TPA salts were investigated for their antimicrobial activity against bacterial and fungus strains. In addition, it was shown for the first time that synthesized TPA salts could be used as potential buffer agents for ⁶⁸Ga-radiolabeling of bifunctional chelating agents (BCA) and clin. relevant peptides (PSMA-11, PSMA-617, DOTA-NOC, DOTA-TATE).

Journal of Molecular Liquids 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, Quality Control of 122-20-3.

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