Tag: M.W=100-150

Li, Tianlin; Jiang, Tian; Liu, Ning; Wu, Caiyun; Xu, Huaide; Lei, Hongjie published the artcile< Biotransformation of phenolic profiles and improvement of antioxidant capacities in jujube juice by select lactic acid bacteria>, COA of Formula: C8H18O, the main research area is biotransformation phenolic antioxidant jujube juice lactic acid bacteria; Antioxidant capacity; Fermentation; Flavor volatiles; Jujube juice; Probiotics.

The objective of this study was to investigate the effects of four com. lactic acid bacteria (LAB), namely L. acidophilus, L. casei, L. helveticus and L. plantarum, on the phenolic profiles, antioxidant capacities and flavor profiles of jujube juices prepared from two crop varieties (Ziziphus Jujuba cv. Muzao and Hetian). Results showed that both jujube juices were excellent matrixes for LAB growth with more than 11 log CFU/mL of viable counts at the end of fermentation LAB fermentation dramatically increased total phenolic content, while decreased total flavonoid content of jujube juices. However, antioxidant capacities based on DPPH and FRAP methods were significantly improved by LAB fermentation and pos. correlated with caffeic acid and rutin contents. Furthermore, a total of 74 volatile compounds were identified and increased in total content by LAB fermentation, which resulted in 22 and 19 new flavor volatiles formation in Muzao juice and Hetian juice, resp.

Food Chemistry published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhang, Meng-Juan; Li, Hong-Xi; Young, David J.; Li, Hai-Yan; Lang, Jian-Ping published the artcile< Reaction condition controlled nickel(II)-catalyzed C-C cross-coupling of alcohols>, Category: alcohols-buliding-blocks, the main research area is nickel cluster catalyst preparation crystal structure; primary secondary alc acceptorless dehydrogenation coupling; aryl alkyl ketone preparation; unsaturated ketone preparation; quinoline preparation.

A controlled approach to a diverse range of β-alkylated secondary alcs., α-alkylated ketones and α,β-unsaturated ketones using the acceptorless dehydrogenation coupling methodol. employing a Ni(II) 4,6-dimethylpyrimidine-2-thiolate cluster catalyst under different reaction conditions was reported. This catalyst could tolerate a wide range of substrates and exhibited a high activity for the annulation reaction of secondary alcs. with 2-aminobenzyl alcs. to yield quinolines. This work is an example of precise chemoselectivity control by careful choice of reaction conditions.

Organic & Biomolecular Chemistry published new progress about Alkyl aryl ketones Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Nguyen, Thao T.; Nguyen, Khang X.; Pham, Phuc H.; Ly, Duc; Nguyen, Duyen K.; Nguyen, Khoa D.; Nguyen, Tung T.; Phan, Nam T. S. published the artcile< Copper-catalyzed synthesis of pyrido-fused quinazolinones from 2-aminoarylmethanols and isoquinolines or tetrahydroisoquinolines>, Computed Properties of 5344-90-1, the main research area is aminoarylmethanol isoquinoline copper catalyst amination annulation cascade reacation; isoquinolino quinazolinone preparation; tetrahydroisoquinoline aminoarylmethanol copper catalyst amination annulation cascade reacation; dihydroisoquinolino quinazolinone preparation.

Pyrido-fused quinazolinones were synthesized via copper-catalyzed cascade C(sp2)-H amination and annulation of 2-aminoarylmethanols with isoquinolines or pyridines. The transformation proceeded readily in the presence of a com. available CuCl2 catalyst with mol. oxygen as a green oxidant. Moreover, the dehydrogenative cross-coupling of 2-aminoarylmethanols with tetrahydroisoquinolines were explored, in which CuBr exhibited higher catalytic activity than CuCl2. Broad substrate scope with good tolerance of functionalities were observed under the optimized reaction conditions. The bioactive naturally occurring alkaloid rutaecarpine was obtained by this strategy. The remarkable feature of this protocol was that complicated heterocyclic structures were readily achieved in a single synthetic step from easily accessible reactants and catalysts. The pathway to pyrido-fused quinazolinones would be complementary to existing protocols.

Organic & Biomolecular Chemistry published new progress about Amination. 5344-90-1 belongs to class alcohols-buliding-blocks, and the molecular formula is C7H9NO, Computed Properties of 5344-90-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tironi, Matteo; Dix, Stefan; Hopkinson, Matthew N. published the artcile< Deoxygenative nucleophilic difluoromethylselenylation of carboxylic acids and alcohols with BT-SeCF2H>, Category: alcohols-buliding-blocks, the main research area is carboxylic acid alc difluoromethylselenylation deoxygenative nucleophilic.

The benzothiazolium salt BT-SeCF2H is introduced as an efficient nucleophilic reagent for transferring difluoromethylselenyl groups onto organic mols. SeCF2H-Containing selenoesters could be prepared upon deoxygenative substitution of readily available carboxylic acids, while silver catalysis allowed for efficient formation of (difluoromethyl)selenoethers, including the established electrophilic reagent BnSeCF2H, directly from simple alcs. To the best of knowledge, these deoxygenative reactions represent the first reported nucleophilic difluoromethylselenylation processes and thus open up new approaches to prepare valuable fluorinated compounds

Organic Chemistry Frontiers published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 10602-04-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C9H8O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Xu, Xiangchao; Li, Shun; Luo, Shiyuan; Yang, Jiazhi; Li, Feng published the artcile< Direct couplings of secondary alcohols with primary alkenyl alcohols to α-alkylated ketones via a tandem transfer hydrogenation/hydrogen autotransfer process catalyzed by a metal-ligand bifunctional iridium catalyst>, Application In Synthesis of 403-41-8, the main research area is alpha alkylated ketone preparation; secondary alc primary alkenyl tandem transfer hydrogenation hydrogen; autotransfer coupling catalyst iridium.

A new strategy for the synthesis of α-alkylated ketones R1C(O)R2 [R1 = i-Pr, t-Bu, 4-MeC6H4, etc.; R2 = pentyl, isohexyl, heptyl, etc.] from secondary alcs. and primary alkenyl alcs. via a tandem transfer hydrogenation/hydrogen autotransfer process was proposed and successfully accomplished. Mechanistic experiments supported that functional groups in bpy ligand were crucial for the transfer hydrogenation and hydrogen autotransfer process. Furthermore, the utilization of the present catalytic system for the gram-scale synthesis of a biol. active compound was presented.

Journal of Catalysis published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Application In Synthesis of 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhu, Man; Chen, Yao; Zhao, Ninghui; Bai, Hua; Zhang, Keqin; Huang, Xiaowei published the artcile< Multiple olfactory pathways contribute to the lure process of Caenorhabditis elegans by pathogenic bacteria>, SDS of cas: 104-76-7, the main research area is Caenorhabditis multiple olfactory pathway lure process pathogenic bacteria; B. nematocida B16; Caenorhabditis elegans; attractant; chemotaxis; host; olfactory signaling pathway; pathogenic bacteria.

Abstract: Chemosensation is indispensable for the survival of Caenorhabditis elegans to discriminate food and pathogenic bacteria in their living environment. Food-like odors emitted by the pathogen Bacillus nematocida B16 for trapping its hosts and an olfactory signaling pathway responsible to sense the attractant 2-heptanone were identified in our previous study. Here, we further explore how the worms recognize the attractive mols. indole and 2-Et hexanol, which have different chem. properties and modest nematode-luring ability. We show that the chemotaxis toward indole and 2-Et hexanol requires the G protein-coupled receptors encoded by str-193 on AWC and str-7 on AWA. In a further genetic screen for downstream effectors in olfactory signaling cascades, the Gα subunit GSA-1, guanylyl cyclase ODR-1 and DAF-11 and the cGMP-gated channel TAX-2/TAX-4 were found to be necessary for indole sensation, whereas the TRPV channels OSM-9/OCR-2 and the PLC pathway activated by GPA-6 are responsible for the detection of 2-Et hexanol. Altogether, our current work further clarifies the distinct olfactory signaling pathways through which C. elegans senses different chems. and is lured by B. nematocida B16, improving our comprehensive understanding of the mechanisms by which bacterial pathogens effectively infect their hosts.

Science China: Life Sciences published new progress about Bacillus nematocida (B16). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, SDS of cas: 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zeng, Haisu; Wu, Jing; Li, Sihan; Hui, Christina; Ta, Anita; Cheng, Shu-Yuan; Zheng, Shengping; Zhang, Guoqi published the artcile< Copper(II)-Catalyzed Selective Hydroboration of Ketones and Aldehydes>, Name: 1-(4-Fluorophenyl)ethyl Alcohol, the main research area is divalent copper catalyzed chemoselective hydroboration ketone aldehyde; nonanuclear copper complex one pot self assembly preparation.

A novel nonanuclear copper(II) complex obtained by a facile one-pot self-assembly was found to catalyze the hydroboration of ketones and aldehydes with the absence of an activator under mild, solvent-free conditions. The catalyst is air- and moisture-stable, displaying high efficiency (1980 h-1 turnover frequency, TOF) and chemoselectivity on aldehydes over ketones and ketones over imines. This represents a rare example of divalent copper catalyst for the hydroboration of carbonyls.

Organic Letters published new progress about Alcohols Role: SPN (Synthetic Preparation), PREP (Preparation). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Name: 1-(4-Fluorophenyl)ethyl Alcohol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gupta, Shivangi; Maji, Ankur; Panja, Dibyajyoti; Halder, Mita; Kundu, Sabuj published the artcile< CuO NPs catalyzed synthesis of quinolines, pyridines, and pyrroles via dehydrogenative coupling strategy>, Product Details of C7H9NO, the main research area is hydroxymethyl aniline ketone copper nanocatalyst oxidative coupling reaction; quinoline preparation; hydroxypropanamine ketone copper nanocatalyst oxidative coupling reaction; pyridine preparation; hydroxyethanamine ketone copper nanocatalyst oxidative coupling reaction; pyrrole preparation.

Copper oxide nanoparticles catalyzed efficient synthesis of quinolines, pyridines, and pyrroles via alc. dehydrogenative coupling strategy are reported. Employing this catalytic system, various functionalized quinolines, pyridines, and pyrroles were synthesized efficiently from different amino alcs. with a diverse range of ketones. A number of control experiments were performed to shed light on the mechanism. This catalyst was recycled up to 6th run and notably, no significant loss was observed in its catalytic activity.

Journal of Catalysis published new progress about Amino alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 5344-90-1 belongs to class alcohols-buliding-blocks, and the molecular formula is C7H9NO, Product Details of C7H9NO.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bernath, G.; Lang, K. L.; Gondos, Gy.; Marai, P.; Kovacs, K. published the artcile< Stereochemical studies on 1,3-difunctional cyclopentane, cyclohexane, and cycloheptane derivatives>, Application of C6H13NO, the main research area is review stereochem functional cycloalkane.

A review of cyclic 1,3-amino alcs. with 92 references Stereospecific syntheses, kinetic studies, N → O acyl migrations were summarized.

Acta Physica et Chemica published new progress about Amines Role: PRP (Properties). 6850-39-1 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H13NO, Application of C6H13NO.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Goclik, Lisa; Offner-Marko, Lisa; Bordet, Alexis; Leitner, Walter published the artcile< Selective hydrodeoxygenation of hydroxyacetophenones to ethyl-substituted phenol derivatives using a FeRu@SILP catalyst>, Synthetic Route of 403-41-8, the main research area is ionic liquid supported iron ruthenium nanoparticle catalyst preparation; ethyl substituted phenol preparation; hydroxyacetophenone seelective deoxygenation.

The selective hydrodeoxygenation of hydroxyacetophenone derivatives is achieved opening a versatile pathway for the production of valuable substituted ethylphenols from readily available substrates. Bimetallic iron ruthenium nanoparticles immobilized on an imidazolium-based supported ionic liquid phase (Fe25Ru75@SILP) show high activity and stability for a broad range of substrates without acidic co-catalysts.

Chemical Communications (Cambridge, United Kingdom) published new progress about Acetophenones Role: RCT (Reactant), RACT (Reactant or Reagent). 403-41-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H9FO, Synthetic Route of 403-41-8.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts