Tag: M.W=100-150

An article TMSCl-Catalyzed Electrophilic Thiocyano Oxyfunctionalization of Alkenes Using N-Thiocyano-dibenzenesulfonimide WOS:000474795200039 published article about ALPHA-THIOCYANATION; FACILE; CHEMISTRY; REAGENT in [Chen, Zhi-Min] Shanghai Jiao Tong Univ, Affiliated Peoples Hosp South Campus 6, 800 Dongchuan Rd, Shanghai 200240, Peoples R China; Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai Key Lab Mol Engn Chiral Drugs, 800 Dongchuan Rd, Shanghai 200240, Peoples R China in 2019, Cited 50. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0. Recommanded Product: 151-10-0

Numerous electrophilic thiocyano oxyfunction-alization reactions of alkenes have been achieved using N-thiocyano-dibenzenesulfonimide, which is a new electrophilic thiocyanation reagent and could be easily prepared in two steps from dibenzenesulfonimide. This approach provides efficient, simple, and modular methods for the formation of SCN-containing heterocycles such as lactones, tetrahydrofurans, dihydrofurans, and dihydrobenzofurans in moderate to excellent yields. Meanwhile, diverse oxa-quaternary centers were rapidly constructed. Additionally, this protocol is free of transition metals and features broad substrate toleraance and mild reaction conditions.

Recommanded Product: 151-10-0. About 1,3-Dimethoxybenzene, If you have any questions, you can contact Ye, AH; Zhang, Y; Xie, YY; Luo, HY; Dong, JW; Liu, XD; Song, XF; Ding, TM; Chen, ZM or concate me.

Reference:
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I found the field of Physics; Spectroscopy very interesting. Saw the article Sulfuric acid and aromatic carboxylate clusters H2SO4 center dot ArCOO-: Structures, properties, and their relevance to the initial aerosol nucleation published in 2019. Recommanded Product: 3-Methylbenzoic acid, Reprint Addresses Wang, XB (corresponding author), Pacific Northwest Natl Lab, Phys Sci Div, 902 Battelle Blvd,POB 999,MS K8-88, Richland, WA 99352 USA.; Valiev, M (corresponding author), Pacific Northwest Natl Lab, Environm Mol Sci Lab, POB 999, Richland, WA 99352 USA.. The CAS is 99-04-7. Through research, I have a further understanding and discovery of 3-Methylbenzoic acid

Sulfuric acid and aromatic compounds are abundant in the atmosphere and play an important role in aerosol nucleation and growth. The main objective of this work is to provide molecular level description of pre-nucleation clusters formed by these species. Our approach is based on size- and compositionselective generation of anionic clusters, consisting of sulfuric acid and series of aromatic carboxylates (ArCOO-; Ar =Phenyl, o-, m-, and p-CH3C6H4 ), and their subsequent characterization using photoelectron spectroscopy and quantum chemical calculations. The photoelectron spectra show that formation of these clusters is accompanied by a significant increase of electron binding energies, implying significant stabilization gained from electron delocalization upon complexation. Comparison between the experimental and calculated results suggests that under low temperature conditions these clusters behave more like a complex of sulfuric acid and aromatic carboxylate, (H2SO4)(ArCOO-), despite the fact that ArCOO- has much higher proton affinity than HSO4-. Similar result has been previously reported for sulfuric acid formate cluster [Hou, Wang, and Valiev, J. Am. Chem. Soc. 139 (2017) 11321-11324], and indicates that interaction energy gained though the formation of these clusters is sufficient to counteract proton affinity imbalance. The calculated intermolecular binding energies (BEs), Gibbs free energies (Delta G), and evaporation rates (gamma) show that these (H2SO4)(ArCOO- ) clusters are extremely stable, with BEs of similar to 54 kcal/mol, Delta G of similar to-40 kcal/mol, and gamma of 10(-20) s(-1) . The experimental and computational results reported in this work suggest that aromatic acids may play a significant role in facilitating the early stages of sulfuric acid nucleation. (C) 2019 Elsevier B.V. All rights reserved.

Recommanded Product: 3-Methylbenzoic acid. About 3-Methylbenzoic acid, If you have any questions, you can contact Hou, GL; Valiev, M; Wang, XB or concate me.

Reference:
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I found the field of Chemistry very interesting. Saw the article Silver-mediated oxidative 1,2-alkylesterification of styrenes with nitriles and acids via C(sp(3))-H functionalization published in 2019.0. Name: 3-Methylbenzoic acid, Reprint Addresses Song, RJ; Xie, YX; Li, JH (corresponding author), Nanchang Hangkong Univ, Key Lab Jiangxi Prov Persistent Pollutants Contro, Nanchang 330063, Jiangxi, Peoples R China.; Li, JH (corresponding author), Hunan Univ, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China.. The CAS is 99-04-7. Through research, I have a further understanding and discovery of 3-Methylbenzoic acid

A new silver-mediated 1,2-alkylesterification of alkenes with nitriles and acids promoted by a catalytic amount of nickel catalyst for producing acyloxylated nitriles has been developed via a C(sp(3))-H functionalization process. By employing the NiI2 and Ag2CO3 catalytic systems, the method features broad substrate scope with respect to carboxylic acids, including linear alkyl acids, cyclic acids, aryl acids and amino acids.

Name: 3-Methylbenzoic acid. About 3-Methylbenzoic acid, If you have any questions, you can contact Jiang, SS; Wu, YC; Luo, SZ; Teng, F; Song, RJ; Xie, YX; Li, JH or concate me.

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An article Enantioselective Synthesis of Atropisomeric Biaryls using Biaryl 2,5-Diphenylphospholanes as Ligands for Palladium-Catalysed Suzuki-Miyaura Reactions WOS:000591516300001 published article about CROSS-COUPLING REACTIONS; HIGHLY-ACTIVE CATALYST; EFFICIENT SYNTHESIS; PHOSPHINE; TRANSMETALATION; COMPLEXES; AMINATION; SCOPE in [Byrne, Liam; Turner, Andrew R.; Smith, Peter D.] AstraZeneca, Early Chem Dev, R&D, Pharmaceut Sci, Macclesfield, Cheshire, England; [Skold, Christian] Uppsala Univ, Dept Med Chem, Drug Design & Discovery, S-75123 Uppsala, Sweden; [Norrby, Per-Ola] AstraZeneca, R&D, Pharmaceut Sci, Data Sci & Modelling, Gothenburg, Sweden; [Munday, Rachel H.] AstraZeneca, Chem Dev, Operat, Pharmaceut Technol & Dev, Macclesfield, Cheshire, England in 2021, Cited 69. Safety of 1,3-Dimethoxybenzene. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0

Here we describe the development of biaryl 2,5-diphenylphospholanes as a new class of C-2-symmetric, monodentate ligands for asymmetric Suzuki-Miyaura (ASM) reactions. Screening of a series of exemplary phospholanes led to the identification of two ligands that were used to prepare a range of atropisomeric biaryl and heterobiaryl products with good to excellent levels of enantioselectivity (up to 97:3 e.r.) under mild conditions. DFT studies suggest that the formation of a constraining ligand pocket and coordination of one of the biaryl methoxy groups in the optimised ligands to the metal centre is crucial for restricting conformational freedom in the bond-forming step.

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Category: isothiazole. In 2019 ORG LETT published article about N BOND FORMATION; NATURAL-PRODUCTS; COUPLING REACTIONS; DIRECT AMINATION; ARENES; AZIDES; CHLOROAMINES; ACTIVATION; PRECURSOR; MILD in [Ding, Yao; Zhang, Shen-Yuan; Fan, Shuai-Xin; Tian, Jie-Sheng; Loh, Teck-Peng] Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, SCME, IAS, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China; [Chen, Yu-Chen; Loh, Teck-Peng] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, Singapore 637371, Singapore; [Loh, Teck-Peng] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China in 2019, Cited 47. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0.

A nondirected amidation reaction of aromatic C-H bond was developed under iron(II) catalysis, using sulfonyl azides as the nitrogen source. The reaction displayed a broad substrate scope and good regioselectivities in the aspects of aromatic ring vs alkyl chain and different aromatic position of (alkyl)arenes. This method provided a new protocol for the synthesis of some aromatic amines, which were hard to achieve in a previous report.

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Isothiazole – Wikipedia,
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Name: 1,3-Dimethoxybenzene. Authors Ojah, EO; Moronkola, DO; Ajiboye, CO; Yusuf, TL; Adeniyi-Akee, MA in TAYLOR & FRANCIS LTD published article about in [Ojah, Emmanuel Onah; Moronkola, Dorcas Olufunke; Ajiboye, Clement Odunayo] Univ Ibadan, Dept Chem, Ibadan, Nigeria; [Ojah, Emmanuel Onah] Mt Top Univ, Dept Chem Sci, Coll Basic & Appl Sci, Makogi Oba, Ogun State, Nigeria; [Yusuf, Tunde Lewis] Univ KwaZulu Natal, Sch Chem & Phys, Private Bag X54001,Westville Campus, ZA-4000 Durban, South Africa; [Adeniyi-Akee, Mukaram Akintunde] Igbined Univ, Dept Pharmaceut Chem, Coll Pharm, Okada, Edo State, Nigeria in 2021, Cited 47. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0

The chemical composition of essential oils (EOs) isolated by hydrodistillation from Pterocarpus soyauxii Taub. root wood and root bark were determined for the first time by GC/MS analysis. The EOs gave a percentage yield (w/w) of 0.34 % and 0.31 % for root wood and root bark respectively. A total of 60 compounds accounting for 86.1 % of the root wood EO composition were identified with monoterpenes (45.4 %) and sesquiterpenes (14.7 %) as predominant constituents. Root bark EO gave 53 identified constituents which make up about 78.5 % of the EO dominated by non-terpenes (23.4 %) and alkanes (14.1 %). The EOs are good sources of limonene (16.9 %), gamma-terpinene (9.8 %) and p-cymene (6.70 %). The anti-diabetic (alpha-amylase and alpha-glucosidase models) and antioxidant activities (DPPH and H2O2 models) of EOs were evaluated in comparison with standard drugs. Alpha-amylase inhibition gave IC50 values (mg/mL) of 0.0493 and 0.0471 for root wood and root bark EOs respectively, compared to acarbose the standard anti-diabetic drug (0.0401) while alpha-glucosidase assay gave IC50 values (mg/mL) of 0.0517 and 0.0486 for root wood and root bark EOs respectively, compared with acarbose (0.0418). In the DPPH antioxidant assay, root bark EO showed higher activity (0.157 mg/mL) compared to root wood EO (0.159 mg/mL) while Root wood and root bark EOs had IC(50 )values (mg/mL) of 0.157 and 0.171 respectively using the H2O2 model. Results revealed the presence of chemical constituents in the EOs which could be responsible for activities expressed by the plant.

Name: 1,3-Dimethoxybenzene. About 1,3-Dimethoxybenzene, If you have any questions, you can contact Ojah, EO; Moronkola, DO; Ajiboye, CO; Yusuf, TL; Adeniyi-Akee, MA or concate me.

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

La Manna, P; Soriente, A; De Rosa, M; Buonerba, A; Talotta, C; Gaeta, C; Neri, P in [La Manna, Pellegrino; Soriente, Annunziata; De Rosa, Margherita; Buonerba, Antonio; Talotta, Carmen; Gaeta, Carmine; Neri, Placido] Univ Salerno, Dipartimento Chim & Biol A Zambelli, Via Giovanni Paolo II, I-84084 Salerno, Italy published Green, Mild, and Efficient Friedel-Crafts Benzylation of Scarcely Reactive Arenes and Heteroarenes under On-Water Conditions in 2019, Cited 98. Application In Synthesis of 1,3-Dimethoxybenzene. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0.

Metal-free Friedel-Crafts benzylation (FCB) of scarcely reactive arenes and heteroarenes was performed under on-water conditions by an environmentally sustainable procedure. The catalytic strategy exploits the hydrophobicity of the resorcinarene macrocycle 1 a. The proposed mechanism is based on the activation of benzyl chloride by H-bonding interactions with catalyst 1 a. In fact, under on-water conditions the hydrophobic amplification of the strength of the H-bonding interactions between the OH groups of the resorcinarene catalyst and the chlorine atom of benzyl chloride leads to polarization of the C-Cl bond, which consequently promotes electrophilic attack of the pi nucleophile. Thus, many arenes and heteroarenes were efficiently benzylated under mild on-water conditions by using resorcinarene 1 a as catalyst. The FCB of benzene is industrially relevant for the synthesis of diphenylmethane, and hence the on-water procedure was extended to the gram-scale synthesis of diphenylmethane, starting from benzene and benzyl chloride in the presence of resorcinarene catalyst 1 a.

Application In Synthesis of 1,3-Dimethoxybenzene. About 1,3-Dimethoxybenzene, If you have any questions, you can contact La Manna, P; Soriente, A; De Rosa, M; Buonerba, A; Talotta, C; Gaeta, C; Neri, P or concate me.

Reference:
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Authors Yadav, MS; Singh, SK; Agrahari, AK; Singh, AS; Tiwari, VK in GEORG THIEME VERLAG KG published article about in [Yadav, Mangal S.; Singh, Sumt K.; Agrahari, Anand K.; Singh, Anoop S.; Tiwari, Vinod K.] Banaras Hindu Univ, Inst Sci, Dept Chem, Varanasi 221005, Uttar Pradesh, India in 2021.0, Cited 64.0. SDS of cas: 99-04-7. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7

A diverse range of ureas, N-acylureas, carbamates, and thiocarbamates has been synthesized in good to excellent yields by reacting N-acylbenzotriazoles individually with amines or amides or phenols or thiols in the presence of diphenylphosphoryl azide (DPPA) as a suitable azide donor in anhydrous toluene at 110 degrees C for 3-4 hours. In this route, DPPA was found to be a good alternative to trimethylsilyl azide and sodium azide for the azide donor in Curtius degradation. The high reaction yields, one-pot and metal-free conditions, straightforward nature, easy handling, use of readily available reagents, and in many cases avoidance of column chromatography are the notable features of the devised protocol.

SDS of cas: 99-04-7. About 3-Methylbenzoic acid, If you have any questions, you can contact Yadav, MS; Singh, SK; Agrahari, AK; Singh, AS; Tiwari, VK or concate me.

Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

An article Solar binary chemical depolymerization of lignin for efficient production of small molecules and hydrogen WOS:000451625700033 published article about THERMAL ELECTROCHEMICAL PROCESS; WASTE-WATER TREATMENT; ORGANIC-SYNTHESIS; CONVERSION; BIOMASS; DEGRADATION; AMMONIA in [Wang, Jiaqi; Yan, Chao; Zhu, Lingyue; Gu, Di; Zhang, Dan; Wang, Hongming; Wang, Baohui] Northeast Petr Univ, Inst New Energy Chem & Environm Sci, Coll Chem & Chem Engn, Daqing 163318, Peoples R China in 2019, Cited 43. Safety of 3-Methylbenzoic acid. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7

In this paper, solar binary chemical depolymerization, that is Solar Thermal Electrochemical Process (STEP), was implemented for an effective breaking of lignin into small molecules and hydrogen. Compared with the conventional unitary chemical thermolysis, solar binary chemical depolymerization of lignin has high efficiencies of the liquefaction and gasification with the low coke, and accompanied by the abundant production of hydrogen. And the reaction temperature of the STEP process was greatly lowered by an intervention of the electrolysis. The results showed that the total conversion and liquefaction of the lignin yielded 87.22% and 57.72% under a constant current of 0.4 A at 340 degrees C. Further characterizations show that lignin has been successfully decomposed into small molecules with high added-value and hydrogen by a combination of the thermolysis and electrolysis. And the particle size of aggregates and the color degree in the lignin aqueous solution was obviously decreased after the STEP process.

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Reference:
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,Isothiazole – ScienceDirect.com

Zhao, MY; Barrado, AG; Sprenger, K; Golz, C; Mata, RA; Alcarazo, M in [Zhao, Mingyue; Barrado, Alejandro G.; Sprenger, Kristin; Golz, Christopher; Alcarazo, Manuel] Georg August Univ Gottingen, Inst Organ & Biomol Chem, D-37077 Gottingen, Germany; [Mata, Ricardo A.] Georg August Univ Gottingen, Inst Phys Chem, D-37077 Gottingen, Germany published Electrophilic Cyanative Alkenylation of Arenes in 2020, Cited 45. Quality Control of 1,3-Dimethoxybenzene. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0.

A variety of appropriately substituted internal alkynes were transformed into the corresponding cyano-substituted phenanthrenes, dihydronaphthalenes, and cyclohepta-1,3,5-trienes in moderate to excellent yields by treatment with imidazolium thiocyanate 1, which serves as an easy to handle [CN](+) precursor, in the presence of BCl3. The synthetic value of the method is additionally demonstrated by the transformation of the primarily obtained products into heavily substituted quinolines. Additionally, the dynamic properties of the prepared dibenzocyclohepta-1,3,5-trienes have been investigated.

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Reference:
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