Month: October 2021

I found the field of Chemistry very interesting. Saw the article Metal-Free Synthesis of Benzothiophenes by Twofold C-H Functionalization: Direct Access to Materials-Oriented Heteroaromatics published in 2019.0. Product Details of 101-84-8, Reprint Addresses Procter, DI (corresponding author), Univ Manchester, Sch Chem, Oxford Rd, Manchester M13 9PL, Lancs, England.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide

Due to their ubiquity in nature and frequent use in organic electronic materials, benzothiophenes are highly sought after. Here we set out an unprecedented procedure for the formation of benzothiophenes by the twofold vicinal C-H functionalization of arenes that does not require metal catalysis. This one-pot annulation proceeds through an interrupted Pummerer reaction/[3,3]-sigmatropic rearrangement/cyclization sequence to deliver various benzothiophene products. The procedure is particularly effective for the rapid synthesis of benzothiophenes from non-prefunctionalized polyaromatic hydrocarbons (PAHs).

Product Details of 101-84-8. About Diphenyl oxide, If you have any questions, you can contact Yan, JJ; Pulis, AP; Perry, GJP; Procter, DI or concate me.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Recently I am researching about C-O BONDS; RENEWABLE CHEMICALS; ARYL ETHERS; GASIFICATION; BIOMASS; CONVERSION; DEPOLYMERIZATION; TRANSFORMATION; VALORIZATION; DEGRADATION, Saw an article supported by the . Category: ethers-buliding-blocks. Published in SPRINGER in DORDRECHT ,Authors: Yamaguchi, A; Mimura, N; Shirai, M; Sato, O. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide

Lignin depolymerization into its aromatic monomers is necessary for the valorization of lignocellulosic biomass, but cleavage of the C-O ether bonds and C-C bonds between the monomers is challenging. In this study, we investigated bond cleavage reactions of benzyl phenyl ether, diphenyl ether, and biphenyl, which served as models for lignin compounds with alpha-O-4, 4-O-5, and 5-5 linkages, respectively, by using various metal catalysts in supercritical water at 673 K and a water density of 0.5 g cm(-3) without added hydrogen gas. Benzyl phenyl ether was decomposed without catalyst. We found that palladium, platinum, and rhodium catalysts supported on carbon showed activity for cleavage of the C-O ether bonds in benzyl phenyl ether and diphenyl ether but not for the bonds between the aromatic units of biphenyl. Using anisole as a model compound, we also found that methoxy groups, which are present in lignin containing coniferyl and sinapyl alcohol monomers, were converted into phenol groups or were decomposed. The reaction conditions described herein have great potential utility for the conversion of lignin, which can be decomposed and dissolved in supercritical water, into valuable aromatic compounds.

Category: ethers-buliding-blocks. About Diphenyl oxide, If you have any questions, you can contact Yamaguchi, A; Mimura, N; Shirai, M; Sato, O or concate me.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

In 2020.0 ENVIRON RES published article about POLYBROMINATED DIPHENYL ETHERS; POLYCHLORINATED-BIPHENYLS PCBS; PERSISTENT ORGANIC POLLUTANTS; BROMINATED FLAME RETARDANTS; RECYCLING SITE; STRESS; EXPOSURE; PBDES; BIOACCUMULATION; ACID in [Wu, Jiang-Ping; Wu, Si-Kang; Chen, Xiao-Yun] Anhui Normal Univ, Coll Environm Sci & Engn, Anhui Prov Engn Lab Water & Soil Pollut Control &, Wuhu 241002, Peoples R China; [Peng, Ying; Zeng, Yan-Hong; Luo, Xiao-Jun; Mai, Bi-Xian] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China; [Peng, Ying] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Peoples R China; [Zhi, Hui] Wannan Med Coll, Sch Basic Med Sci, Wuhu 241002, Peoples R China in 2020.0, Cited 59.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. Recommanded Product: Diphenyl oxide

The crude electronic waste (e-waste) recycling has caused severe contamination of polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in the local environment, begging the question of whether wildlife like birds living at e-waste sites are suffering from adverse effects. We examined several oxidative status markers and their relationships with hepatic concentrations of PCBs and PBDEs in common kingfisher (Alcedo atthis) that inhabit an e-waste site in South China. The results showed that the mean concentrations of Sigma PCBs (19100 ng/g) and Sigma PBDEs (507 ng/g) in kingfishers from e-waste site were several orders of magnitude higher than those in the species from a reference site. Correspondingly, hepatic concentrations of malondialdehyde (MDA) and reactive oxygen species (ROS) in kingfishers from the e-waste site were significantly higher than those detected in the reference population, suggesting oxidative distress in the birds breeding at the e-waste site. The activities of superoxide dismutase (SOD) and catalase (CAT) in the liver from the exposed group were significantly lower compared with the reference group, while the opposite trend was observed for glutathione peroxidase (GPx). Significantly positive correlations were observed between PCB or PBDE concentrations and the levels of MDA and ROS; while negative correlations were found for enzymatic activities of SOD and CAT. Overall, our results may suggest a potential linkage between exposure to e-waste-derived pollutants and elevated oxidative stress, thereby indicating a potential oxidative stress-related health effects in common kingfisher breeding at the e-waste site.

Recommanded Product: Diphenyl oxide. About Diphenyl oxide, If you have any questions, you can contact Wu, JP; Peng, Y; Zhi, H; Wu, SK; Chen, XY; Zeng, YH; Luo, XJ; Mai, BX or concate me.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

An article Alternative halogenated flame retardants (AHFRs) in green mussels from the south China sea WOS:000516094400035 published article about POLYBROMINATED DIPHENYL ETHERS; WASTE RECYCLING REGION; LAURENTIAN GREAT-LAKES; PEARL RIVER DELTA; HERRING GULL EGGS; DECHLORANE-PLUS; DECABROMODIPHENYL ETHANE; COMPOSITION PROFILES; ENNORE ESTUARY; PERNA-VIRIDIS in [Sun, Runxia; Wu, Youting; Chen, Xuejing] Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Peoples R China; [Pan, Changgui] Guangxi Univ, Sch Marine Sci, Nanning 530004, Peoples R China; [Pan, Changgui] Guangxi Univ, Guangxi Lab Study Coral Reefs South China Sea, Nanning 530004, Peoples R China; [Peng, Fengjiao] Luxembourg Inst Hlth, Dept Populat Hlth, 1A-B Rue Thomas Edison, L-1445 Strassen, Luxembourg; [Mai, Bixian] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China in 2020.0, Cited 52.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. Formula: C12H10O

Restrictions of legacy brominated flame retardants, such as polybrominated diphenyl ether (PBDE) and polybrominated biphenyl (PBB), have resulted in increased usage of alternative halogenated flame retardants (AHFRs). Consequently, AHFRs contamination has caused a major concern in the scientific community. However, there is limited information on their presence in marine mussels. In this study, we investigated the occurrence and distribution of polybrominated biphenyls (PBBs), AHFRs and dehalogenated products in green mussels collected from 22 locations in the northern South China Sea (SCS). Our results revealed that Sigma AHFRs were ubiquitous in green mussels with concentrations in the range of 1.08-7.71 ng/g lipid weight (lw). Among target AHFRs, hexabromobenzene (HBB), decabromodiphenyl (DBDPE) and dechlorane plus (DP) were predominant with their mean values of 1.19, 1.00 and 0.82 ng/g lw, respectively. There were negligible stereoisomer enrichments of DP in green mussels based on f(anti) values, indicating a limited bioaccumulation and metabolism of DP in green mussels. In comparison with other locations, concentrations of the AHFRs in green mussels determined here were at moderate levels. Additionally, there were significant linear relationships between some AHFRs (e.g., HBB and PBEB), suggesting their similar commercial applications and sources in the environment. The estimated daily intakes of AHFRs through consumption of green mussels by the local population in South China were 0.05-0.14 ng/kg body weight/day and 0.17-0.44 ng/kg body weight/day based on the mean and 95th concentrations, respectively. To the best of our knowledge, the present study is the first to report AHFRs and dehalogenated products in green mussels.

Formula: C12H10O. About Diphenyl oxide, If you have any questions, you can contact Sun, RX; Pan, CG; Peng, FJ; Wu, YT; Chen, XJ; Mai, BX or concate me.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Recommanded Product: Diphenyl oxide. Yang, SQ; Lu, XM; Yao, HY; Xin, JY; Xu, JL; Kang, Y; Yang, YQ; Cai, GM; Zhang, SJ in [Yang, Shaoqi; Lu, Xingmei; Yao, Haoyu; Xin, Jiayu; Xu, Junli; Kang, Ying; Yang, Yongqing; Cai, Guangming; Zhang, Suojiang] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc,CAS Key La, Beijing 100190, Peoples R China; [Yang, Shaoqi; Lu, Xingmei; Zhang, Suojiang] Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China published Efficient hydrodeoxygenation of lignin-derived phenols and dimeric ethers with synergistic [Bmim]PF6-Ru/SBA-15 catalysis under acid free conditions in 2019.0, Cited 52.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

Selective catalytic hydrotreatment of lignin-derived phenols and dimeric ethers into alkanes is crucial for utilization of lignin and its fragments. Herein, we developed an efficient catalytic system with well-dispersed metal nanoparticles supported on SBA-15 synergistic with an ionic liquid. The catalytic system could catalyze the hydrodeoxygenation (HDO) of various monomeric and dimeric lignin-derived phenols into the corresponding alkanes under acid free conditions. The synergistic [Bmim]PF6-Ru/SBA-15 (1-butyl-3-methylimidazolium hexafluorophosphate) catalysis exhibited the best HDO activity for ligninderived phenols and dimeric ethers with >99.0% conversion and maximum > 98.0% selectivity of the corresponding alkanes. The yield of cyclohexane from diphenyl ether was 97.7% with 100% conversion under 2 MPa H-2 at 130 degrees C for 6 h. The mechanism investigation confirmed that the Ru/SBA-15 catalyst and the anion of [Bmim] PF6 played crucial roles in the hydrogenation process and deoxidization process, respectively. The catalytic system was reused six times for HDO of diphenyl ether to test its stability.

About Diphenyl oxide, If you have any questions, you can contact Yang, SQ; Lu, XM; Yao, HY; Xin, JY; Xu, JL; Kang, Y; Yang, YQ; Cai, GM; Zhang, SJ or concate me.. Recommanded Product: Diphenyl oxide

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Authors Ulker, OC; Ulker, O in NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI published article about BROMINATED FLAME RETARDANTS; EPOXIDIZED SOYBEAN OIL; IN-HOUSE DUST; DI(2-ETHYLHEXYL)PHTHALATE DEHP; POLYCHLORINATED-BIPHENYLS; INHALATION TOXICITY; PLASTIC COMPOSITES; URINARY PHTHALATE; BREAST-MILK; METABOLITE CONCENTRATIONS in [Ulker, Ozge Cemiloglu] Ankara Univ, Sch Pharm, Dept Toxicol, TR-06100 Ankara, Turkey; [Ulker, Onur] Kirikkale Univ, Dept Interior Architecture & Environm Design, TR-71450 Kirikkale, Turkey in 2019.0, Cited 174.0. Application In Synthesis of Diphenyl oxide. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Adhesives, flame-retardant chemicals, and paints are used in engineered wood products (EWPs) to increase some of the properties of wood. Most of the engineered wood composites, including plywood, particleboard, and fiberboard, used as furniture components contain formaldehyde resins as an adhesive. The International Agency for Research on Cancer (IARC) added formaldehyde to the list of human carcinogens (Group 1) in 2004. Flame-retardant chemicals are semi-volatile organic compounds that can migrate from the products to the air. There are developmental neurotoxic effects from flame-retardant additives, among which polybrominated diphenyl ethers (PBDEs) are commonly used in EWPs. The flexibility and durability of plastics are increased using phthalates, which are a class of synthetic chemicals, by adding them to the polyvinyl chloride (PVC) that is used in the wood-plastic composites (WPC). Formaldehyde, PBDEs, and phthalates are toxicants that are commonly present in value-added furniture products. This review summarized the toxic effects of these chemicals from the aspect of human health and from the perspective of green products.

About Diphenyl oxide, If you have any questions, you can contact Ulker, OC; Ulker, O or concate me.. Application In Synthesis of Diphenyl oxide

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Product Details of 103-50-4. In 2020 CHEMSUSCHEM published article about VISIBLE-LIGHT-PHOTOREDOX; ALPHA-KETO ACIDS; RADICAL-ADDITION; DIALKYL AZODICARBOXYLATES; ORGANOCATALYTIC SYNTHESIS; CHAIN PROCESSES; SULFUR YLIDES; ALKENYLATION; ALDEHYDES; ETHERS in [Papadopoulos, Giorgos N.; Kokotou, Maroula G.; Spiliopoulou, Nikoleta; Nikitas, Nikolaos F.; Voutyritsa, Errika; Tzaras, Dimitrios I.; Kaplaneris, Nikolaos; Kokotos, Christoforos G.] Natl & Kapodistrian Univ Athens, Dept Chem, Lab Organ Chem, Athens 15771, Greece in 2020, Cited 107. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4.

C-H functionalization at the alpha-position of heterocycles has become a rapidly growing area of research. Herein, a cheap and efficient photochemical method was developed for the C-H functionalization of heterocycles. Phenylglyoxylic acid (PhCOCOOH) could behave as an alternative to metal-based catalysts and organic dyes and provided a very general and wide array of photochemical C-H alkylation, alkenylation, and alkynylation, as well as C-N bond forming reaction methodologies. This novel, mild, and metal-free protocol was successfully employed in the functionalization of a wide range of C-H bonds, utilizing not only O- or N-heterocycles, but also the less studied S-heterocycles.

Product Details of 103-50-4. About Benzyl ether, If you have any questions, you can contact Papadopoulos, GN; Kokotou, MG; Spiliopoulou, N; Nikitas, NF; Voutyritsa, E; Tzaras, DI; Kaplaneris, N; Kokotos, CG or concate me.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Recommanded Product: Diphenyl oxide. Authors Shishilov, ON; Shamsiev, RS; Akhmadullina, NS; Flid, VR in WILEY-V C H VERLAG GMBH published article about in [Shishilov, Oleg N.; Shamsiev, Ravshan S.; Flid, Vitaly R.] MIREA Russian Technol Univ, MV Lomonosov Inst Fine Chem Technol, Phys Chem Dept, Vernadskogo Av 86, Moscow 119571, Russia; [Akhmadullina, Nailya S.] Russian Acad Sci, AA Baikov Inst Met & Mat Sci, Lab Phys & Chem Anal Ceram Mat, Leninsky Av 49, Moscow 119991, Russia in 2021.0, Cited 56.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Palladium nitrsosyl carboxylates Pd-3(NO)(2)(CX3CO2)(4)(ArH)(2) (I: X=Cl, Ar=Ph; II: X=F, Ar=Tol) are found to be effective catalysts for C-H/C-H oxidative homocoupling of arenes bearing electron-donor as well as electron-withdrawing groups (EWG). Trifluoroacetate complex II is found to be more promising due to higher stability under the reaction conditions. Complex II also shows high performance in intramolecular coupling in diarylsulfides, diarylethers and diarylamines giving corresponding dibenzothiophenes, dibenzofurans and carbazoles with yields ranged from moderate to high. The plausible mechanism is studied by DFT computational analysis basing on Pd-3 linear complexes as major active species. It was found that two deprotonation steps proceed in two different ways: for the first deprotonation SEAr is most probable pathway while for the second one concerted metalation-deprotonation (CMD) is preferable. That can explain high tolerance of the system to different substrates: SEAr is favorable in the presence of electron donor group and EWG facilitate CMD. NO group was found to be involved into the CMD pathway and that is the rate-determining step with the highest activation barrier.

Recommanded Product: Diphenyl oxide. About Diphenyl oxide, If you have any questions, you can contact Shishilov, ON; Shamsiev, RS; Akhmadullina, NS; Flid, VR or concate me.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Application In Synthesis of Diphenyl oxide. I found the field of Chemistry; Engineering very interesting. Saw the article Extraction Behavior of Metal Cations Using 8-Quinolinol as an Extractant in Cyclopentyl Methyl Ether published in 2019.0, Reprint Addresses Oshima, T (corresponding author), Univ Miyazaki, Dept Appl Chem, 1-1 Gakuen Kibanadai Nishi, Miyazaki 8892192, Japan.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide.

To date, many kinds of chelating extractants have been developed, however, many of the good extractants are insoluble in aliphatic solvents. In the present study, cyclopentyl methyl ether (CPME) was assessed as a solvent for extractants to develop new solvent extraction systems. Many of the extractants (100 mM) were soluble in CPME. The extraction behavior of metal ions using a typical chelating extractant, 8-quinolinol (HQ) in CPME, was studied. The extraction profiles of metal ions using HQ in CPME were similar to those in toluene, whereas metal ions were extracted using HQ in 1-octanol and chloroform under lower pH conditions. The extraction reaction of In(III) using HQ in CPME was confirmed by slope analysis. A 3 : 1 complex between HQ and In(III) was formed in CPME by a proton exchange reaction, and the extraction equilibrium constant was determined. In(III), extracted using HQ in CPME, was quantitatively recovered using mineral acids. From the results, CPME was found to be a potential alternative solvent to other toxic organic solvents for the development of a solvent extraction system.

Application In Synthesis of Diphenyl oxide. About Diphenyl oxide, If you have any questions, you can contact Oshima, T; Koyama, T; Ohe, K; Otsuki, N or concate me.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Authors Wakayama, H; Sakasai, M; Yoshikawa, K; Inoue, M in AMER CHEMICAL SOC published article about OLFACTORY PERCEPTION; FRAGRANCE; BINARY; MIXTURES; FLAVOR; MAGNITUDE; TERNARY; MODELS; SCALE in [Wakayama, Hideki; Sakasai, Mitsuyoshi; Inoue, Michiaki] Kao Corp, Global R&D, Sensory Sci Res, Sumida Ku, 2-1-3 Bunka, Tokyo 1318501, Japan; [Yoshikawa, Keiichi] Kao Corp, Global R&D, Sensory Sci Res, 2606 Haga Gun, Ichikai, Tochigi 3213497, Japan in 2019.0, Cited 40.0. Recommanded Product: Diphenyl oxide. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

The main purpose of this study is to facilitate fragrance development on the basis of scientific knowledge. To this end, data on 314 perfumery raw materials (PRMs) showing the relationship between PRM odor intensity and gas concentration were obtained, and a calculation model for the data was then developed with the following features: (1) maximum PRM coverage, (2) calculating values implying odor intensity from only arbitrary gas concentration, and (3) estimating odor intensity from the calculated values directly and easily. To verify the prediction accuracy of this model, the predicted odor intensity was compared with the evaluated value for both single component and a mixture, and the same degree of root-mean-square error (RMSE) was confirmed. RMSE in the single component was 6.22 while that in the mixture was 6.69. Thus, the odor intensity of a PRM or mixture can be predicted from arbitrary gas concentrations.

Recommanded Product: Diphenyl oxide. About Diphenyl oxide, If you have any questions, you can contact Wakayama, H; Sakasai, M; Yoshikawa, K; Inoue, M or concate me.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem