Day: October 12, 2021

An article Redox-neutral photocatalytic strategy for selective C-C bond cleavage of lignin and lignin models via PCET process WOS:000497954900006 published article about PRIMARY ALCOHOL OXIDATION; VISIBLE-LIGHT; ORGANIC FRAMEWORKS; RADICAL CATIONS; CARBON-CARBON; DEPOLYMERIZATION; HYDROGENOLYSIS; TRANSFORMATION; DEGRADATION; BIOMASS in [Wang, Yinling; Liu, Yue; He, Jianghua; Zhang, Yuetao] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Jilin, Peoples R China in 2019, Cited 62. Safety of m-Methoxyphenol. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6

It remains challenging to achieve the selective cleavage of C-C bonds in lignin or lignin model compounds to produce aromatic products in high yield and selectivity. We have developed a redox-neutral photocatalytic strategy to accomplish this goal in both beta-O-4 and beta-1 lignin models at room temperature (RT) via proton-coupled electron transfer (PCET) process without any pretreatments of substrate, by adjusting the alkalinity of base to obtain a lignin models/base PCET pair with a bond dissociation free energy close to 102 kcal/mol. Without breaking down C-beta-C-gamma bond and any C-O bonds, this PCET method is 100% atom economy and produces exclusive C-alpha-C-beta bond cleavage products, such as benzaldehydes (up to 97%) and phenyl ethers (up to 96%), in high to excellent yields and selectivities. Preliminary studies indicated that the PCET strategy is also effective for the depolymerization of native lignin at RT, thus providing significantly important foundation to the depolymerization of lignin. (C) 2019 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.

Safety of m-Methoxyphenol. About m-Methoxyphenol, If you have any questions, you can contact Wang, YL; Liu, Y; He, JH; Zhang, YT or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

COA of Formula: C8H8O2. Authors Akbarian, M; Sanchooli, E; Oveisi, AR; Daliran, S in ELSEVIER published article about in [Akbarian, Mohadeseh; Sanchooli, Esmael; Oveisi, Ali Reza; Daliran, Saba] Univ Zabol, Dept Chem, POB 98615-538, Zabol, Iran in 2021.0, Cited 68.0. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5

A new Zr-based MOF, namely, UiO-66-Urea, was prepared through polymerization between the 2-aminoterephthalate linkers of UiO-66-NH2 MOF and 1,4-phenylene diisocyanate under mild reaction conditions. Post-synthetic coating of UiO-66-Urea with choline chloride (ChCl), as easily available, inexpensive, and nontoxic reagent, under thermal and solvent-free conditions resulted in in-situ formation of a deep-eutectic solvent-like on the UiO-66-Urea’s surface, called here ChCI@UiO-66-Urea. The presence of Zr6O4(OH)(4) nodes and urea groups may capable of strong hydrogen bond formation with ChCl. The porous and bioinspired ChCl@UiO-66-Urea was characterized using FT-IR, powder XRD, SEM, EDX elemental mapping, TGA, and BET surface area measurements. Choline chloride-coated UiO-66-Urea was successfully promoted one-pot three-component synthesis of 2-amino-4H-chromenes, as biologically active heterocycles, through reactions of aldehydes, malononitrile, and alpha-naphthol or 4-hydroxycoumarin under solvent-free conditions. The catalytic activity of the respective solid was superior than UiO-66, UiO-66-NH2, UiO-66-Urea, and even ChCl-2Urea due to synergistic effect between actives sites of UiO-66-Urea and ChCl. The reaction includes a consecutive three-step Knoevenagel condensation/Michael addition/cydization mechanism. (C) 2020 Elsevier B.V. All rights reserved.

COA of Formula: C8H8O2. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Akbarian, M; Sanchooli, E; Oveisi, AR; Daliran, S or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Onoda, M; Fujita, K in [Onoda, Mitsuki; Fujita, Ken-ichi] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan published Iridium-Catalyzed C-Alkylation of Methyl Group on N-Heteroaromatic Compounds using Alcohols in 2020.0, Cited 44.0. Safety of Benzyl Alcohol. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6.

In this study, we developed a catalytic system for the C-alkylation of a methyl group on N-heteroaromatic compounds, including pyridine, pyrimidine, pyrazine, quinoline, quinoxaline, and isoquinoline, using alcohols based on a hydrogen-borrowing process with [Cp*IrCl2](2) (Cp*: eta(5)-pentamethylcyclopentadienyl) combined with potassium t-butoxide and 18-crown-6-ether as the catalyst precursor.

Safety of Benzyl Alcohol. About Benzyl Alcohol, If you have any questions, you can contact Onoda, M; Fujita, K or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Formula: C7H8O2. Vanammoole, L; Kommera, R; Kurma, SH; Vaidya, JR; Bhimapaka, CR in [Vanammoole, Lakshmireddy; Kommera, Rajkumar; Kurma, Siva Hariprasad; Bhimapaka, China Raju] CSIR, Dept Organ Synth & Proc Chem, Indian Inst Chem Technol, Hyderabad 500007, India; [Vaidya, Jayathirtha Rao] CSIR, Fluoro Agrochem, Indian Inst Chem Technol, Hyderabad 500007, India; [Vanammoole, Lakshmireddy; Kommera, Rajkumar; Kurma, Siva Hariprasad; Vaidya, Jayathirtha Rao; Bhimapaka, China Raju] AcSIR Postal Staff Coll Area, Sect 19, Ghaziabad 201002, Uttar Pradesh, India published Regioselective Halogenation of 2H-Chromenones Promoted by Oxone and NaX: A Facile Approach for the Preparation of Halochromenones and 2H-Chromenone Natural Products in 2020.0, Cited 77.0. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6.

A systematic study has been conducted for the regioselective halogenation of 2H-chromenones to prepare 3-halo-2H-chromenones, 4-substituted 3-halo-2H-chromenones and 3-(2-haloacetyl)-2H-chromenones. Commercially available NaCl/NaBr has been used as halogen source and oxone as an oxidant to produce the compounds. Further, the method has been successfully applied for the preparation of pharmaceutically important halogenated 2H-chromenone natural products. The present approach is simple, economically viable and provided the target compounds with good yields.

Formula: C7H8O2. About m-Methoxyphenol, If you have any questions, you can contact Vanammoole, L; Kommera, R; Kurma, SH; Vaidya, JR; Bhimapaka, CR or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Access to chromone-3-carboxylic acid via silver mediated coupling of 4-hydroxy coumarin and enol ester WOS:000662212800015 published article about PALLADIUM(II); ANNULATION; CHROMONES; PLATINUM(II); BENZOFURAN; COMPLEXES; FLAVONES in [Mishra, Priyadarshini; Panda, Niranjan] Natl Inst Technol Rourkela, Dept Chem, Rourkela 769008, Odisha, India; [Sepay, Nayim] Lady Brabourne Coll, Dept Chem, Kolkata 700017, India in 2021.0, Cited 39.0. Safety of m-Methoxyphenol. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6

A silver-mediated aerobic approach to access 2-methyl-chromone-3-carboxylic acid from the reaction of 4-hydroxy coumarin and enol ester in the presence of base has been presented. Mechanistic investigation suggests that the base induced Michael-type addition reaction of 4-hydroxy coumarin to the enol ester resulting the sequential ring opening and closing with the liberation of acetone are the key-steps for the overall transformation. Theoretical calculation of energy of the intermediates by DFT supports the proposed reaction mechanism. (C) 2021 Elsevier Ltd. All rights reserved.

Safety of m-Methoxyphenol. About m-Methoxyphenol, If you have any questions, you can contact Mishra, P; Sepay, N; Panda, N or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Quality Control of Benzyl Alcohol. Authors Alharthy, M; Suliman, MH; Al-Betar, AR; Wang, Y; Tian, ZQ; Drmosh, QA; Yamani, ZH; Qamar, M in ROYAL SOC CHEMISTRY published article about in [Alharthy, Mohammad; Suliman, Munzir H.; Al-Betar, Abdul-Rahman] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia; [Suliman, Munzir H.; Drmosh, Qasem A.; Yamani, Zain H.; Qamar, Mohammad] King Fahd Univ Petr & Minerals, Ctr Excellence Nanotechnol CENT, Dhahran 31261, Saudi Arabia; [Wang, Yuan; Tian, Ziqi] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, 1219 Zhongguan West Rd, Ningbo 315201, Zhejiang, Peoples R China; [Qamar, Mohammad] King Fahd Univ Petr & Minerals, KA CARE Energy Res & Innovat Ctr, Dhahran 31261, Saudi Arabia in 2021.0, Cited 65.0. The Name is Benzyl Alcohol. Through research, I have a further understanding and discovery of 100-51-6

Surface and interface engineering predominantly determines the overall surface dynamics, and the surface layers can benefit substantially from a chemically different underneath layer. Herein, we demonstrate the surface tuning of nickel ferrite (NiFe2O4) with awaruite (Ni3Fe). The NiFe2O4 grows in the form of a crystalline monolayer encompassing bimetallic Ni3Fe nanocrystals embedded within a polyaniline (PANI) matrix. This is achieved by a simple and highly reproducible chemical approach. Benzyl alcohol (BA) and PANI steer the growth of metallic Ni3Fe covered with a monolayer of NiFe2O4 under mild solvothermal conditions. PANI presumably renders anchoring sites and guides the formation of fine and monodisperse nanocrystals of NiFe2O4/Ni3Fe, while BA acts as a reducing agent and controls the nucleation and the growth of NiFe2O4. In the absence of PANI, the formation of large and agglomerated NiFe2O4 nanoparticles is observed. The fine interface created between the NiFe2O4 monolayer and Ni3Fe imparts unique and superior surface attributes; Ni3Fe renders a high electroactive surface area and faster charge transport, while the NiFe2O4 monolayer affords high catalytic ability. As a result, the NiFe2O4/Ni3Fe/PANI electrode efficiently catalyzes the oxygen evolution reaction (OER), and requires a substantially lower overpotential than those of NiO/PANI, NiFe2O4, and Fe2O3/PANI. The Tafel values suggest that the kinetics of the half-reaction at the catalytic interface of NiFe2O4/Ni3Fe/PANI is much faster (52.3 mV dec(-1)) than that of NiO/PANI (82.5 mV dec(-1)), NiFe2O4 (86.0 mV dec(-1)) and Fe2O3/PANI (108.3 mV dec(-1)). The turnover frequency of NiFe2O4/Ni3Fe/PANI is 0.27 s(-1), 5.4 fold higher than that of NiFe2O4 (0.05 s(-1)). Moreover, the electrochemically active surface area, electrochemical impedance, surface charge transport properties, and active sites of NiFe2O4/Ni3Fe/PANI and NiFe2O4 are estimated, compared and correlated to the OER performance. In addition, density functional theory calculations show a decrease in the barrier of the potential-determining step from *O to *OOH, indicating a favorable electronic modulation at the interface of NiFe2O4 and Ni3Fe, which reduces the overpotential requirement.

About Benzyl Alcohol, If you have any questions, you can contact Alharthy, M; Suliman, MH; Al-Betar, AR; Wang, Y; Tian, ZQ; Drmosh, QA; Yamani, ZH; Qamar, M or concate me.. Quality Control of Benzyl Alcohol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

HPLC of Formula: C9H7NO2. Authors Chheda, PR; Kummer, DA; Nishimura, RT; McClure, KJ; Venkatesan, H in AMER CHEMICAL SOC published article about in [Kummer, David A.] Lundbeck La Jolla Res Ctr Inc, San Diego, CA 92121 USA; [Chheda, Pratik R.; Nishimura, Rachel T.; McClure, Kelly J.; Venkatesan, Hariharan] Janssen Res & Dev, Discovery Chem, San Diego, CA 92121 USA in 2021, Cited 63. The Name is 4-Hydroxyquinolin-2(1H)-one. Through research, I have a further understanding and discovery of 86-95-3

A one-pot, Hantzsch ester-mediated Knoevenagel condensation-reduction reaction has been developed for alkylation of a wide range of substituted 2,4-quinoline diols and 2,4-pyridine diols with aldehydes. The process is operationally simple to perform, scalable, and provides highly useful C-3 alkylated quinoline and pyridine diols in yields of 58-92%. The alkylation products can be converted to 2,4-dihaloquinoline and pyridine substrates for further functionalization.

About 4-Hydroxyquinolin-2(1H)-one, If you have any questions, you can contact Chheda, PR; Kummer, DA; Nishimura, RT; McClure, KJ; Venkatesan, H or concate me.. HPLC of Formula: C9H7NO2

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Formula: C9H10O3. Authors Oboudatian, HS; Naeimi, H; Moradian, M in ROYAL SOC CHEMISTRY published article about in [Oboudatian, Hourieh Sadat; Naeimi, Hossein; Moradian, Mohsen] Univ Kashan, Dept Organ Chem, Fac Chem, Kashan 87317, Iran in 2021.0, Cited 58.0. The Name is 3,4-Dimethoxybenzaldehyde. Through research, I have a further understanding and discovery of 120-14-9

In this study, simple and effective methods were used for the preparation of an ionic liquid that immobilized magnetite nanoparticles. Fe3O4 nanoparticles were prepared via a chemical co-precipitation method. Then, a SiO2 shell was coated on the magnetic core via the Stober method. Finally, CPTES (chloropropyltriethoxysilane) and morpholine were coated on the SiO2 shell. Morpholine sulfate, an acidic ionic liquid, was successfully bound to magnetite nanoparticles (Mag@Morph-AIL) and this was used as an efficient catalyst for the preparation of 3,4-dihydropyrimidinones. Compared to previous works, the easy separation of the nanocatalyst using an external magnet and the recyclability, non-toxicity, versatility, and high stability of the catalyst, combined with low reaction times and excellent yields, make the present protocol very useful for the synthesis of the title products. The synthesized products and catalyst were confirmed via(1)H-NMR, C-13-NMR, FT-IR, scanning electron microscope, X-ray diffraction, and elemental analysis.

About 3,4-Dimethoxybenzaldehyde, If you have any questions, you can contact Oboudatian, HS; Naeimi, H; Moradian, M or concate me.. Formula: C9H10O3

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Rhodium-catalyzed sequential intermolecular hydroacylation and deconjugative isomerization toward diversified diketones WOS:000605450500005 published article about S-SUBSTITUTED ALDEHYDES; ALKYNE HYDROACYLATION; ALLYLIC ALCOHOLS; COUPLING REACTION; C-H; ALKENE; CYCLIZATION; MECHANISM; SCOPE; ACID in [You, Guirong; Yan, Jizhong] Zhejiang Univ Technol, Coll Pharmaceut Sci, Hangzhou 310014, Peoples R China; [You, Guirong; Chang, Zhi-Xin; Xia, Chengcai; Li, Fu-Rong; Li, Hong-Shuang] Shandong First Med Univ & Shandong Acad Med Sci, Sch Pharmaceut Sci, Inst Pharmacol, Tai An 271014, Shandong, Peoples R China in 2021, Cited 52. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5. Name: 4-Methoxybenzaldehyde

A rhodium-catalyzed tandem intermolecular hydroacylation of terminal alkyne-substituted secondary alcohols with chelating aldehydes and deconjugative isomerization of the resulting alpha,beta-unsaturated ketones for the preparation of synthetically valuable 1,4-diketones is developed. Of note, the completely atom-economical protocol can be extended to the alkynyl alcohols with appropriate carbon chain length, from which 1,5-diketone and 1,6-diketone were obtained involving the short-range deconjugative isomerization. Given its robustness, broad substrate scope, and excellent regioselectivity, this approach provides a promising platform for the synthesis of diverse diketones.

Name: 4-Methoxybenzaldehyde. About 4-Methoxybenzaldehyde, If you have any questions, you can contact You, GR; Chang, ZX; Yan, JZ; Xia, CC; Li, FR; Li, HS or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recently I am researching about DENSITY-FUNCTIONAL THERMOCHEMISTRY; INTERMOLECULAR INTERACTIONS; PROMOTED SYNTHESIS; SULFURIC-ACID; EFFICIENT; DERIVATIVES; 1,8-DIOXO-OCTAHYDROXANTHENES; ALDEHYDES, Saw an article supported by the . Application In Synthesis of 4-Methoxybenzaldehyde. Published in ELSEVIER in AMSTERDAM ,Authors: Shashi, R; Begum, NS; Panday, AK. The CAS is 123-11-5. Through research, I have a further understanding and discovery of 4-Methoxybenzaldehyde

A highly versatile and efficient ultrasound promoted synthesis of xanthenedione derivatives is achieved through condensation of dimedone with various aromatic aldehydes using boric acid as catalyst in ethanol-water medium. The advantages of this method being, mild reaction conditions, short reaction time, easy work-up, purification of products by non-chromatographic methods and additionally this method provides excellent yields. Two of the Xanthendiones derivatives 3a and 3b gave good crystals on recrystallization and their molecular structures were confirmed by crystallographic studies. The molecules in the crystal lattice are held together by weak intermolecular C-H center dot center dot center dot O and C-H center dot center dot center dot N interactions. Further insights into these interactions using Hirshfeld surface analysis and DFT/B3LYP studies show that in compound 3a H center dot center dot center dot H (54.7%), O center dot center dot center dot H (18.3%) and in 3b H center dot center dot center dot H (53.7%), O center dot center dot center dot H (17.6%) are the major contributors to the intermolecular interactions which stabilize the crystal structures. In order to determine molecular electrical transport properties, we studied the energy difference between Highest Occupied, HOMO, and Lowest Unoccupied, LUMO orbitals and the HOMO and LUMO energy gap for compounds 3a and 3b was found to be 3.9261 eV and 4.6436 eV respectively. The 2D fingerprint plot provided percentage contribution of each individual atom-to-atom interactions. The Mulliken atomic charges and molecular electrostatic potential on molecular van der Waals surface were calculated to know the electrophilic and nucleophilic regions of the molecular surface. (C) 2020 Elsevier B.V. All rights reserved.

Application In Synthesis of 4-Methoxybenzaldehyde. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Shashi, R; Begum, NS; Panday, AK or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles