Tag: M.W=50-100

Chen, Yi published the artcileThe O1/H3-preferred 1:1 H-bonding and the electron-cloud migration induced by H-bonding or non-specific interactions: A systematic study on the interactions between dimethyl phthalate and 1-, 2- or 3-alkanol (C2-C6), Name: 3-Pentanol, the main research area is dimethyl phthalate aliphatic alc hydrogen bond IR spectra.

H-bonding and non-specific interactions between di-Me phthalate (DMP) and different human body substances were considered to be mainly responsible for various health dysfunctions. However, the manner of H-bonding and the adaptability of the structure of DMP that may underpin the H-bonding/non-specific interactions have been difficult to assess and remain elusive. In this study, we set out to gain an insight into the subjects above through a systematic investigation on the interactions between DMP and 1-, 2- or 3-alkanol (C2 – C6). We calculated the H-bond distances, the C=O and C-O bond lengths and other selected structural essentials at B3LYP 6-311G(d) level. We recorded the IR spectra Band I and Band II of C=O of DMP when dissolving DMP into 11 different alkanol/n-Hexane binary solvent systems. We created and fit the equations to delineate the dependence of the absorption intensity ratio of Band II to Band I (AII/AI) on the volume-ratio of the alkanol component (x). Based on the equations, we obtained the percent of the major alkanol associates (-p), the binding constant of the 1:1 and 1:2 DMP-alkanol complexes (K1 and K2) and the ratio of the molar absorptivity of H-bonded C=O to the molar absorptivity of non-bonded C=O (εhb/εns). The -p, K1, K2 and εhb/εns values confirmed the calculated results. It can be concluded that H-bonds mainly form the 1:1 complexes at O1 and H3, leading to species O5-H1···O1 = C1 for 3-alkanols and species O5-H1···O1 = C1 and Ph-H3···O5 for 2-alkanols. The differences of the affinity of H-bonding were mainly attributed to the steric hindrance and to a lesser extent to the hydrophobic interactions and the multi-H-bond cooperativity. The electron-cloud of the DMP mol. was supposed to migrate mainly in the E1 or E4 mode to adapt to the H-bonding or non-specific interactions, resp.

Journal of Molecular Liquids published new progress about C-O bond length. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Name: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Du, Wu-Bo published the artcileRegio- and stereoselective electrochemical synthesis of sulfonylated enethers from alkynes and sulfonyl hydrazides, Recommanded Product: 3-Pentanol, the main research area is sulfonyl enether preparation green chem regioselective diastereoselective; alkyne sulfonyl hydrazide alc electrooxidative sulfonylation.

An electrooxidative direct difunctionalization of internal alkynes RCCR1 [R = Ph, 2-chlorophenyl, thiophen-2-yl, etc.; R1 = Me, cyclopropyl, 2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)ethyl, etc.] with sulfonyl hydrazides R2S(O)2NHNH2 (R2 = 4-methylphenyl, 3-bromophenyl, cyclopropyl, etc.) has been developed for the construction of sulfonated enethers (E)-RC(OR3)=C(R1)S(O)2R2 (R3 = Et, 2,2,2-trifluoroethyl, cyclohexyl, etc.). In this transformation, metal catalysts or stoichiometric amount of oxidants are not required and mol. nitrogen and hydrogen are the sole byproducts, providing a simple and green approach for preparing various sulfonyl tetrasubstituted alkenes. Notably, the protocol could be efficiently scaled up and the follow-up procedures of the corresponding functionalized alkenes demonstrate the practicality of the electrochem. synthesis.

Green Chemistry published new progress about Aryl alkenes Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation) (sulfonyl). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Recommanded Product: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sun, Simin published the artcileDirect synthesis of highly strained bifunctionalized 2H-thiete 1,1-dioxides, Application of 3-Pentanol, the main research area is thiete dioxide preparation; sulfonyl chloride dialkyl acetylene dicarboxylate heterocyclization pyridine catalyst.

Highly strained bifunctionalized dialkyl 2H-thiete-2,3-dicarboxylate 1,1-dioxides I [R = ethenyl, 4-(trifluoromethyl)phenyl, 3-cyanophenyl, etc.; R1 = Et, pentan-3-yl, cyclohexyl; R2 = Ph, OEt, pentan-3-yloxidanyl, etc.] are directly synthesized from readily available sulfonyl chlorides RCH2 and dialkyl acetylenedicarboxylates R1O(O)CCCC(O)R2 via the pyridine-mediated [2+2] annulation. In the annulation, pyridine first eliminates HCl from sulfonyl chlorides to generate sulfenes and then nucleophilically attacks the sulfenes to form zwitterionic intermediates, which nucleophilically attack dialkyl acetylenedicarboxylates followed by an intramol. cyclization and isomerization to produce the final dialkyl 2H-thiete-2,3-dicarboxylate 1,1-dioxides I. Pyridine serves as both base and nucleophilic catalyst. The current method is an efficient strategy for direct synthesis of highly strained bifunctionalized 2H-thiete 1,1-dioxide derivatives from readily available starting materials.

Organic Chemistry Frontiers published new progress about Heterocyclization ((2+2)). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Application of 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Malathi, R. published the artcileStudy on preliminary phytochemicals and GC-MS analysis of Justicia adhatoda leaves extract, Name: 3-Pentanol, the main research area is Justicia leaf root bark alkaloid flavonoid glycoside coumarin tannin.

Several natural products have been implemented as an alternative health care treatment and in discovery of effective modern drugs. A major focus of natural product chem. has been toward drug design and discovery. Justicia adhatoda is a well-known Indian medicinal plant valued for its pharmacopeia. This plant root, bark, leaf and flower are used to heal several diseases and poisonous bites. The present work was to evaluate the phytochems. and GC-MS anal. of J. adhatoda leaves extracts The extracts were subjected to qual. phytochem. screening using standard procedures. The result showed that the phytochems. present in the extract of J.adhatoda are alkaloids, flavonoids, glycosides, cardiac glycosides, coumarins, hydroxy anthraquinones, tannins, phlobatannins, proteins, xantho protein, steroids and phenols. The GC-MS anal. of acetone extract showed the presence of many secondary metabolites like phytol (0.8%), 9,12,15-octadecatrienoic acid, (Z,Z,Z) (1.6%), butane, 2,2-di-Me (0.21%), pentane, 2,3,3-tri-Me (0.22%), hexathiane (0.08%), and benzenesulfonic acid (0.22%). The diversity of phytochem. present in the plant suggests that J. adhatoda could serve as a source of useful drugs

Journal of Drug Delivery and Therapeutics published new progress about Amino acids Role: PAC (Pharmacological Activity), THU (Therapeutic Use), BIOL (Biological Study), USES (Uses). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Name: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhou, Jiadi published the artcileSelf-photocatalyzed regulable alkylation of 2H-benzothiazoles with diverse aliphatic C-H donors, Quality Control of 584-02-1, the main research area is benzothiazole alc photochem alkylation; alkyl hydroxy benzothiazole preparation; amide benzothiazole photochem alkylation; amido alkyl benzothiazole preparation; alc benzothiazole photochem alkylation; alkylbenzothiazole preparation.

Here, a mild and efficient method that combines self-photoredox catalysis and hydrogen atom transfer to achieve the alkylation of 2H-benzothiazoles with alcs., ethers, lactams, amides and alkane, which features broad substrate scope and excellent functional group compatibility was reported. Notably, alcs. can be used not only as hydroxyalkylating reagents, but also as dehydroxyalkylating reagents in this regulable alkylation protocol. The previous elusive self-photocatalytic mechanism was investigated and preliminary results on this catalytic alkylation were reported.

Green Chemistry published new progress about Alkanes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Quality Control of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Fang published the artcileDirect Benzylic C(sp3)-O Coupling with Alcohol via Site-Selective C(sp3)-H Cleavage at Room Temperature through a Remote Directing Group-Enabled Radical Relay Strategy, Quality Control of 584-02-1, the main research area is benzylic carbon oxygen coupling alc regioselective copper catalyst; alkyl aryl carbamate carbon hydrogen bond cleavage.

Employing a low loading of the terminal oxidant, a remote directing group-enabled radical relay strategy for benzylic direct C(sp3)-H alkoxylation with alcs. at room temperature is developed. Satisfactory site-selectivity, chemoselectivity, and reaction scope are achieved under simple and mild conditions, and no ligand or additive is required. Mechanistic studies, ready conversions of the directing group, and other benzylic functionalizations currently under development in laboratory further indicate the promising potentials of this remote directing group-enabled radical relay strategy.

Journal of Organic Chemistry published new progress about Alkoxylation. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Quality Control of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gao, Han published the artcileTransition Metal-Free Radical α-Oxy C-H Cyclobutylation via Photoinduced Hydrogen Atom Transfer, Recommanded Product: 3-Pentanol, the main research area is oxyalkane arylsulfonyl bicyclobutane regioselective quinuclidine photocatalyst ring opening; arylsulfonyl cyclobutane preparation.

A transition-metal-free photoinduced radical-mediated α-oxy C-H cyclobutylation reaction of bicyclo[1.1.0]butane (BCB) compounds was described. In this protocol, α-oxy C(sp3)-H motifs including ethers and alcs. were activated via photocatalytic conditions, releasing the ring strain of BCBs and generating 1,3-disubstituted cyclobutanes in 40-80% yields. Control experiments and Stern-Volmer quenching experiments indicated that the reaction proceeded through the generation of α-oxy carbon-centered radical intermediates by photoinduced hydrogen atom transfer (HAT) process.

Advanced Synthesis & Catalysis published new progress about Aromatic compounds, sulfones Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Recommanded Product: 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sadier, Achraf published the artcileEffect of carbon chain length on catalytic C-O bond cleavage of polyols over Rh-ReOx/ZrO2 in aqueous phase, Formula: C5H12O, the main research area is polyol carbon oxygen bond cleavage rhenium rhodium bimetallic catalyst.

Production of linear deoxygenated C4 (butanetriols, -diols, and butanols), C5 (pentanetetraols, -triols, -diols, and pentanols), and C6 products (hexanepentaols, -tetraols, -triols, -diols, and hexanols) is achievable by hydrogenolysis of erythritol, xylitol, and sorbitol over supported-bimetallic Rh-ReOx (Re/Rh molar ratio 0.5) catalyst, resp. After validation of the anal. methodol., the effect of some reaction parameters was studied. In addition to C-O bond cleavage by hydrogenolysis, these polyols can undergo parallel reactions such as epimerization, cyclic dehydration, and C-C bond cleavage. The time courses of each family of linear deoxygenated C4, C5, and C6 products confirmed that the sequence of appearance of the different categories of deoxygenated products followed a multiple sequential deoxygenation pathway. The highest selectivity to a mixture of linear deoxygenated C4, C5, and C6 products at 80% conversion was favored under high pressure in the presence of 3.7wt.%Rh-3.5wt.%ReOx/ZrO2 catalysts (54-71% under 80 bar) at 200 °C.

Applied Catalysis, A: General published new progress about C-O bond cleavage (catalysts). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Formula: C5H12O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pardatscher, Lorenz published the artcileHighly Efficient Abnormal NHC Ruthenium Catalyst for Oppenauer-Type Oxidation and Transfer Hydrogenation Reactions, SDS of cas: 584-02-1, the main research area is cationic ruthenium phosphinoethylimidazolylidene carbene complex preparation catalyst transfer hydrogenation; crystal structure cationic ruthenium phosphinoethylimidazolylidene carbene complex; mol structure cationic ruthenium phosphinoethylimidazolylidene carbene complex; oxidation catalyst cationic ruthenium phosphinoethylimidazolylidene carbene complex.

The Ru complex [Ru(OAc)(a-PC)2]Br (3) containing two abnormal NHC ligands was obtained by reaction of Ru(OAc)2(PPh3)2 (1) with 1-(2-diphenylphosphinoethyl)-3-mesitylimidazolium bromide in the presence of NaOAc. Complex 3 catalyzes the Oppenauer-type oxidation of a number of alcs. at unrivalled reaction rates reaching TOFs up to 550,000 h-1, at low catalyst loadings (S/C >10,000) and using acetone in stoichiometric amounts Complex 3 is also highly active in the reverse transfer hydrogenation of several ketones with iso-PrOH, displaying TOFs up to 600,000 h-1.

ACS Catalysis published new progress about Crystal structure. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, SDS of cas: 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Balthazar, Celso F. published the artcileEffect of probiotic Minas Frescal cheese on the volatile compounds profile and metabolic profile assessed by nuclear magnetic resonance spectroscopy and chemometric tools, Application of 3-Pentanol, the main research area is cheese probiotics volatile compound metabolic profile NMR spectroscopy chemometrics; Lacticaseibacillus casei 01; amino acid; chemometrics; fresh cheese; probiotic.

This study aimed to evaluate the effect of Lacticaseibacillus casei 01 as a probiotic culture on the production of volatile organic compounds and metabolic profile of Minas Frescal cheese. Lactose (α-lactose and β-lactose), fatty acids (unsaturated and saturated), citric acid, tryptophan, and benzoic acid were the main compounds Compared with the control cheese, probiotic cheese was characterized by the highest concentration of tryptophan and presented a higher number of volatile acids. The control cheese was characterized by the highest concentration of benzoic acid and fatty acids, resulting in a higher number of volatile alcs. and esters. No differences were observed for α-lactose, β-lactose, and citric acid contents. A clear separation of probiotic and control Minas Frescal cheese was obtained using 1H NMR spectra, demonstrating that the addition of probiotic culture altered the metabolic profile of Minas Frescal cheese. Overall, the findings suggested that the addition of probiotic culture promoted the proteolysis in the fresh cheeses, decreased the lipolysis, and altered the volatile compounds Furthermore, NMR spectroscopy coupled to chemometrics tools could be used to differentiate probiotic and conventional cheeses.

Journal of Dairy Science published new progress about Alcohols Role: ANT (Analyte), FFD (Food or Feed Use), ANST (Analytical Study), BIOL (Biological Study), USES (Uses). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Application of 3-Pentanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts