Category: 111-29-5

Zhang, Ruipu published the artcileBio-inspired lanthanum-ortho-quinone catalysis for aerobic alcohol oxidation: semi-quinone anionic radical as redox ligand, Related Products of alcohols-buliding-blocks, the publication is Nature Communications (2022), 13(1), 428, database is CAplus and MEDLINE.

Oxidation reactions are fundamental transformations in organic synthesis and chem. industry. With oxygen or air as terminal oxidant, aerobic oxidation catalysis provides the most sustainable and economic oxidation processes. Most aerobic oxidation catalysis employs redox metal as its active center. While nature provides non-redox metal strategy as in pyrroloquinoline quinone (PQQ)-dependent methanol dehydrogenases (MDH), such an effective chem. version is unknown. Inspired by the recently discovered rare earth metal-dependent enzyme Ln-MDH (methanol dehydrogenases), this study shows that an open-shell semi-quinone anionic radical species in complexing with lanthanum could serve as a very efficient aerobic oxidation catalyst under ambient conditions. In this catalyst, the lanthanum(III) ion serves only as a Lewis acid promoter and the redox process occurs exclusively on the semiquinone ligand. The catalysis is initiated by 1e^–-reduction of lanthanum-activated ortho-quinone to a semiquinone-lanthanum complex La(SQ^-.)₂, which undergoes a coupled O-H/C-H (PCHT: proton coupled hydride transfer) dehydrogenation for aerobic oxidation of alcs. such as benzyl alc., 1,4-butane-diol, 1-(2-furyl)ethanol, etc. with up to 330 h^-1 TOF.

Nature Communications published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C23H43NP2, Related Products of alcohols-buliding-blocks.

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

Sun, Li published the artcileReactive polyurethane hot melt adhesives based on polycarbonate and sebacic acid-based polyester polyols, Formula: C5H12O2, the publication is Journal of Adhesion Science and Technology, database is CAplus.

Reactive polyurethane hot melt adhesives (HMPURs) containing a blend of polyester and polycarbonate diols can typically exhibit balanced performance, such as bonding properties, tensile strength, and heat resistance. Two series of HMPURs made from poly(1,4-butylene adipate) or sebacic acid (SeA)-based polyester diols with different mol. weights were prepared and investigated. Increasing the mol. weight of the SeA-based polyester diols was found to significantly improve their mech. properties and lap shear strengths. Moreover, the HMPURs made from SeA-based polyester diol exhibited better performances than those made from poly(1,4-butylene adipate). Also, the HMPURs were more suitable for bonding on PC substrate.

Journal of Adhesion Science and Technology published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C6H5NO, Formula: C5H12O2.

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

Wang, Ting published the artcileSelective hydroconversion of 2-methylfuran to pentanols on MWNT-supported Pt catalyst at ambient temperature, Application In Synthesis of 111-29-5, the publication is Rare Metals (Beijing, China) (2022), 41(3), 889-900, database is CAplus.

The selective hydrogenolysis of C-O bond in furfural and its derivatives provides a sustainable route for transforming biomass-derived feedstocks into valued chems. Currently, the development of efficient catalysts which can effectively cleavage C-O bond under mild conditions remains a critical challenge. The present work reports Pt catalysts supported on multi-walled carbon nanotubes (MWNT) which are active in 2-methylfuran (2-MF) hydrogenolysis to form pentanols in liquid phase under mild conditions. The impact of various catalyst supports, active metals and reaction conditions in terms of metal loadings, solvent, time, pressure, etc. were explored. The 5 wt% Pt/MWNT catalyst demonstrated an excellent activity and selectivity with 100% 2-MF conversion and 53% pentanols (POLs) yield under 1 MPa H2 at an exceptional low temperature of 25°C. The reaction mechanism was studied combing both the reactivity tests and characterization results, and it is found that the better catalytic performances of Pt/MWNT were correlated closely to the size of Pt nanoparticles and their interactions with the underlying MWNT support. Accordingly, a reaction pathway involving the adsorption of 2-MF parallel to the Pt nanoparticles and its subsequently selective C-O hydrogenolysis was proposed. This work showcases a promising catalyst for room-temperature biofuel production

Rare Metals (Beijing, China) published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C13H10N2S, Application In Synthesis of 111-29-5.

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

Xu, Wanling published the artcileElectrochemical hydrogenation of biomass-based furfural in aqueous media by Cu catalyst supported on N-doped hierarchically porous carbon, Synthetic Route of 111-29-5, the publication is Applied Catalysis, B: Environmental (2022), 121062, database is CAplus.

Electrochem. hydrogenation (ECH) is a particularly important and environmentally friendly approach to obtain biomass-based fuels and high value-added fine chems. without using external hydrogen. Herein, we reported a highly efficient and selective ECH of furfural (FF) into furfuryl alc. (FA) with Cu-based electrocatalyst in aqueous alk. media. Under the optimal conditions, FA selectivity close to 100% with 99% FF conversion and total Faradaic efficiency above 95% were obtained with the electrocatalyst. Mechanism investigation suggests an ECH mechanism for FA formation, which is highly potential-dependent to FA selectivity, requiring low and well-matched concentrations between active hydrogen (H_ads) species and FA radical on the Cu surface. Moreover, the electrocatalyst shows an excellent stability and recyclability during the eight-time consecutive recycling experiments, yielding a total amount of 1011 mg FA. This work thus highlights an important guidance for electrocatalytic upgrading of biomass-based platform mols. in an environmentally friendly way.

Applied Catalysis, B: Environmental published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C20H23N3O2S, Synthetic Route of 111-29-5.

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

Jaumaux, Pauline published the artcileLocalized Water-In-Salt Electrolyte for Aqueous Lithium-Ion Batteries, Name: Pentane-1,5-diol, the publication is Angewandte Chemie, International Edition (2021), 60(36), 19965-19973, database is CAplus and MEDLINE.

Water-in-salt (WIS) electrolytes using super-concentrated organic lithium (Li) salts are of interest for aqueous Li-ion batteries. However, the high salt cost, high viscosity, poor wettability, and environmental hazards remain a great challenge. Herein, we present a localized water-in-salt (LWIS) electrolyte based on low-cost lithium nitrate (LiNO₃) salt and 1,5-pentanediol (PD) as inert diluent. The addition of PD maintains the solvation structure of the WIS electrolyte, improves the electrolyte stability via hydrogen-bonding interactions with water and NO₃^– mols., and reduces the total salt concentration By in situ gelling the LWIS electrolyte with tetraethylene glycol diacrylate (TEGDA) monomer, the electrolyte stability window can be further expanded to 3.0 V. The as-developed Mo₆S₈|LWIS gel electrolyte|LiMn₂O₄ (LMO) batteries delivered outstanding cycling performance with an average Coulombic efficiency of 98.53% after 250 cycles at 1 C.

Angewandte Chemie, International Edition published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, Name: Pentane-1,5-diol.

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

Guo, Liulong published the artcileHyperbranched Polyborate: A Non-conjugated Fluorescent Polymer with Unanticipated High Quantum Yield and Multicolor Emission, Synthetic Route of 111-29-5, the publication is Angewandte Chemie, International Edition (2022), 61(29), e202204383, database is CAplus and MEDLINE.

Non-conjugated fluorescent polymers have attracted great attention due to their excellent biocompatibility and environmental friendliness. However, it remains a huge challenge to obtain a polymer with high fluorescence quantum yield (QY) and multicolor emission simultaneously. Herein, we reported three kinds of nonaromatic hyperbranched polyborates (P1-P3) with multicolor emission, surprisingly, P2 also exhibits an unanticipated high QY (54.1%). The natural bond orbital (NBO) anal. and d. functional theory (DFT) calculation results revealed that the synergistic effect of rigid BO₃ planar and flexible carbon chain, as well as the through-space dative bond in supramol. aggregate, were the key factors contributing to the ultrahigh QY of P2. Moreover, the applications of P2 in Fe³⁺ ions detection and cell imaging were also investigated. This work provides a new perspective for designing non-conjugated fluorescent polymers with both high QY and multicolor emission.

Angewandte Chemie, International Edition published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, Synthetic Route of 111-29-5.

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

Itoga, Moeko published the artcileIridium-catalyzed α-selective deuteration of alcohols, Computed Properties of 111-29-5, the publication is Chemical Science (2022), 13(30), 8744-8751, database is CAplus and MEDLINE.

The α-selective, iridium(III)-bipyridonate-catalyzed hydrogen(H)/deuterium(D) isotope exchange of alcs. using deuterium oxide (D₂O) as the primary deuterium source to afford deuterated alcs. RCD₂OH [R = Ph, 2-MeC₆H₄, 4-FC₆H₄, etc.], R¹DCOHR² [R¹ = Ph, 4-ClC₆H₄, 4-BrC₆H₄, etc.; R² = Me, cyclopropyl, Ph] was reported. This method enabled the direct, chemoselective deuteration of primary and secondary alcs. under basic or neutral conditions without being affected by coordinative functional groups such as imidazole and tetrazole. Successful substrates for deuterium labeling include the pharmaceuticals losartan potassium, rapidosept, guaifenesin and diprophylline. The deuterated losartan potassium showedhigher stability toward the metabolism by CYP2C9 than the protiated analog. Kinetic and DFT studies indicated that the direct deuteration proceeded through dehydrogenation of alc. to the carbonyl intermediate, conversion of [IrIII-H] to [IrIII-D] with D2O, and deuteration of the carbonyl intermediate to give the α-deuterated products.

Chemical Science published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, Computed Properties of 111-29-5.

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

Sun, Han published the artcileFluorinated Poly-oxalate Electrolytes Stabilizing both Anode and Cathode Interfaces for All-Solid-State Li/NMC811 Batteries, Application In Synthesis of 111-29-5, the publication is Angewandte Chemie, International Edition (2021), 60(33), 18335-18343, database is CAplus and MEDLINE.

The relatively narrow electrochem. steady window and low ionic conductivity are two critical challenges for Li⁺-conducting solid polymer electrolytes (SPE). Here, a family of poly-oxalate(POE) structures were prepared as SPE; among them, POEs composed from diols with an odd number of carbons show higher ionic conductivity than those composed from diols with an even number of carbons, and the POE composed from propanediol (C5-POE) has the highest Li⁺ conductivity The HOMO (HOMO) electrons of POE were found located on the terminal units. When using trifluoroacetate as the terminating unit (POE-F), not only does the HOMO become more neg., but also the HOMO electrons shift to the middle oxalate units, improving the antioxidative capability. Furthermore, the interfacial compatibility across the Li-metal/POE-F is also improved by the generation of a LiF-based solid-electrolyte-interlayer(SEI). With the trifluoroacetate-terminated C5-POE (C₅-POE-F) as the electrolyte and Li⁺-conducting binder in the cathode, the all-solid-state Li/LiNi_0.8Mn_0.1Co_0.1O₂(NMC811) cells showed significantly improved stability than the counterpart with poly-ether, providing a promising candidate for the forthcoming all-solid-state high-voltage Li-metal batteries.

Angewandte Chemie, International Edition published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C7H13NO2, Application In Synthesis of 111-29-5.

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

Chen, Yanru published the artcilePoly(1,5-pentylene-co-2,2,4,4-tetramethyl cyclobutylene terephthalate) copolyesters with high T_g and improved ductility and thermal stability, Related Products of alcohols-buliding-blocks, the publication is Polymer (2021), 124152, database is CAplus.

Poly(1,5-pentylene-co-2,2,4,4-tetramethyl cyclobutylene terephthalate) (PPecBT) random copolyesters glass transition temperature up to 136°C were synthesized through two-step melting polycondensation of di-Me terephthalate (DMT) or terephthalic acid (TPA), 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO) and 1,5-pentanediol (PeDO). They were characterized and assessed with intrinsic viscosity, ¹H NMR, DSC, TGA, tensile and impact testing as well as melt foaming observation. Using PeDO as a diol comonomer was helpful to depress CBDO sublimation and pipeline blocking, and to reduce the composition and cis-trans ratio deviations between monomer and copolymer. The presence of PeT repeat unit in PPecBT was beneficial to improve the thermal stability of PPecBT and to reduce undesired melt foaming and volume expansion during melt processing. The T^g of these amorphous copolymers is determined by intrinsic viscosity, copolymer composition and cis-cB unit fraction, and a quant. relationship among them is established. Futhermore, these PPecBTs showed superior tensile ductility as well as strength and modulus.

Polymer published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, Related Products of alcohols-buliding-blocks.

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

Karsai, Syrus published the artcileComparison of novel aluminium lactate versus aluminium chloride-based antiperspirant in excessive axillary perspiration: First prospective cohort study, Product Details of C5H12O2, the publication is Dermatologic Therapy (2021), 34(4), e15020, database is CAplus and MEDLINE.

Aluminum chloride-based antiperspirants are an effective topical therapeutic option for mild to moderate states of excessive perspiration. Its use is primarily limited by the occurrence of skin irritation, especially in sensitive skin types. The objective of this study was to compare the antiperspirant efficacy and tolerability of a novel antiperspirant with 12.5% aluminum lactate, and a 12.5% aluminum chloride-based antiperspirant. This cohort study was conducted as a two-sided self-assessment comparison between both preparations in healthy volunteers to generate selfcare-related data. Almost half of the participants stated that aluminum chloride was more efficacious than aluminum lactate; 22% stated aluminum lactate was more efficacious than aluminum chloride; 28% observed no difference in the efficacy of both preparations (p = 0.04). However, 88% described greater tolerability with aluminum lactate (p < 0.0001). In this study, aluminum lactate showed significantly greater tolerability than aluminum chloride, although the latter tended to show slightly greater efficacy.

Dermatologic Therapy published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, Product Details of C5H12O2.

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