Tag: 100-200

Marrot, Laetitia; Meile, Kristine; Zouari, Mariem; DeVallance, David; Sandak, Anna; Herrera, Rene published an article in 2022, the title of the article was Characterization of the compounds released in the gaseous waste stream during the slow pyrolysis of hemp (Cannabis sativa L.).HPLC of Formula: 91-16-7 And the article contains the following content:

This study aims to characterize and valorize hemp residual biomass by a slow pyrolysis process. The volatile byproducts of hemp carbonization were characterized by several methods (TGA, UV-VIS, TLC, Flash Prep-LC, UHPLC, QTOF-MS) to understand the pyrolysis reaction mechanisms and to identify the chem. products produced during the process. The obtained carbon yield was 29%, generating a gaseous stream composed of phenols and furans which was collected in four temperature ranges (F1 at 20-150掳C, F2 at 150-250掳C, F3 at 250-400掳C and F4 at 400-1000掳C). The obtained liquid fractions were separated into subfractions by flash chromatog. The total phenolic content (TPC) varied depending on the fraction but did not correlate with an increase in temperature or with a decrease in pH value. Compounds present in fractions F1, F3 and F4, being mainly phenolic mols. such as guaiacyl or syringyl derivatives issued from the lignin degradation, exhibit antioxidant capacity. The temperature of the pyrolysis process was pos. correlated with detectable phenolic content, which can be explained by the decomposition order of the hemp chem. constituents. A detailed understanding of the chem. composition of pyrolysis products of hemp residuals allows for an assessment of their potential valorization routes and the future economic potential of underutilized biomass. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).HPLC of Formula: 91-16-7

The Article related to cannabis slow pyrolysis valorization gaseous waste stream antioxidant, biocompounds, gaseous phase, hemp by-products, residual stream, slow pyrolysis, thermal decomposition and other aspects.HPLC of Formula: 91-16-7

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

On February 28, 2022, Ragab, Mahmoud A.; Elagawany, Mohamed; Daabees, Hoda; Ahmed, Al-Shaimaa F.; Awad, Eman M.; Billon, Cyrielle; Elgendy, Bahaa; Abouzid, Khaled A. M.; Kassab, Shaymaa E. published an article.Application In Synthesis of 1,4-Dimethoxybenzene The title of the article was Structure-based design and synthesis of conformationally constrained derivatives of methyl-piperidinopyrazole (MPP) with estrogen receptor (ER) antagonist activity. And the article contained the following:

Nuclear Estrogen receptors (ER) are cytoplasmic proteins; translocated to the nucleus to induce transcriptional signals after getting bound to the estrogen hormone. ER activation implicated in cancer cell proliferation of female reproductive organs. Thus, the discovery of ER antagonists is a reliable strategy to combat estrogen-dependent breast cancer. Endometrial carcinoma is one of the complications encountered upon long-term therapy by selective estrogen receptor modulators (SERMs) like Tamoxifen (TMX) and Me piperidinopyrazole (MPP). Thus, the ER-full antagonist is a solution to improve the safety of this class of therapeutics during the treatment of breast cancer. We selected MPP as a lead structure to design conformationally constrained analogs. Structural rigidification is a proven strategy to transform the SERMs into full antagonists. Accordingly, we synthesized 7-methoxy-3-(4-methoxyphenyl)-4,5-dihydro-2H-benzo[g]indazoles (4), (6a-c), (8-12) along with the biphenolic counterparts (13-19) that are the anticipated active metabolites. The 4-nitrophenyl derivative (4) is with the most balanced profile regarding the in vivo anti-uterotrophic potential (EC50 = 4.160 渭M); and the cytotoxicity assay of the corresponding active metabolite (13) against ER+ breast cancer cell lines (MCF-7 IC50 = 7.200 渭M, T-47D IC50 = 11.710 渭M). The inconsiderable uterotrophic activities of the elaborated ER-antagonists and weak antiproliferative activity of the compound (13) against ovarian cancer (SKOV-3 IC50 = 29.800 渭M) highlighted it as a good start point to elaborate potential ER-full antagonists devoid of endometrial carcinoma. Extending the pendant chain that protrudes from the 2-(4-(substituted)-phenyl) ring of the new benzo-indazoles is recommended for enhancing the potency based on the binding mode of compound (13) in the ligand-binding domain (LBD) of ER. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Application In Synthesis of 1,4-Dimethoxybenzene

The Article related to endometrial breast carcinoma methyl piperidinopyrazole er antagonist antiproliferative, antiestrogens, benzo-indazoles, breast cancer, er-full antagonist, ligand binding domain, tamoxifen and other aspects.Application In Synthesis of 1,4-Dimethoxybenzene

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Ether – Wikipedia,
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On February 28, 2022, Pacheco, Paulo Victor Magalhaes; Campos, Vicente Paulo; Terra, Willian Cesar; Pedroso, Marcio Pozzobon; de Paula, Leticia Lopes; da Silva, Maysa Siqueira Goncalves; Monteiro, Thalita Suelen Avelar; de Freitas, Leandro Grassi published an article.Related Products of 150-78-7 The title of the article was Attraction and toxicity: Ways volatile organic compounds released by Pochonia chlamydosporia affect Meloidogyne incognita. And the article contained the following:

The production of volatile organic compounds (VOCs) acting against plant-parasitic nematodes has been characterized in different fungi; however, the role of VOCs emitted by Pochonia chlamydosporia in its trophic interaction with Meloidogyne incognita is still unknown. The aim of this study was to determine the effects of VOCs emitted by P. chlamydosporia strain Pc-10 on different stages (eggs, juveniles and female) of the M. incognita life cycle. Exposure of M. incognita eggs to VOCs released by Pc-10 resulted in a reduction up to 88% in the nematode egg hatching, when compared to the control treatments. The VOCs emitted by Pc-10 also attracted M. incognita second-stage juveniles (J2). Through gas chromatog.-mass spectrometry (GC-MS), three mols. were identified from the volatiles of the strain Pc-10, with 1,4-dimethoxybenzene being the major compound In tests performed in vitro, 1,4-dimethoxybenzene at a concentration of 1050渭g mL-1 inhibited M. incognita egg hatching by up to 78.7% compared to the control (0渭g mL-1) and attracted M. incognita J2 in all concentrations evaluated (1, 10, 100, 1000, and 10000渭g mL-1). The 1,4-dimethoxybenzene also showed fumigant and non-fumigant nematicidal activity against M. incognita. This compound presented lethal concentration for 50% (LC50) of M. incognita J2 ranged from 132 to 136渭g mL-1. Fumigation with 1,4-dimethoxybenzene (100 mg) reduced egg hatching by up to 89% and killed up to 86% of M. incognita J2 compared to the control (0渭g mL-1). In vivo, the VOCs produced by Pc-10, 1,4-dimethoxybenzene, and the combination of both (Pc-10 + 1,4-dimethoxybenzene) attracted the M. incognita J2, compared to the resp. controls. To the best of our knowledge, this is the first report on the attraction of M. incognita J2 and the toxicity to eggs and J2 by VOCs from P. chlamydosporia in which 1,4-dimethoxybenzene is the main toxin and attractant. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Related Products of 150-78-7

The Article related to pochonia chlamydosporia meloidogyne incognita way volatile organic compound toxicity, 1,4-dimethoxybenzene, attraction, biological control, nematophagous fungi, volatile organic compounds and other aspects.Related Products of 150-78-7

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Ether – Wikipedia,
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On April 19, 2019, Huber, Florian; Roesslein, Joel; Gademann, Karl published an article.HPLC of Formula: 321-28-8 The title of the article was Preparation of Indolenines via Nucleophilic Aromatic Substitution. And the article contained the following:

An unusual aromatic substitution to access indolenines is described. 2-(2-Methoxyphenyl)acetonitrile derivatives are reacted with various alkyl and aryl Li reagents to furnish the corresponding indolenine products, constituents of natural products, and cyanine dyes such as indocyanine green. This new method was used to synthesize 41 indolenines with large functional group tolerance, and selected examples were further converted to the corresponding indolenine dyes. Key experiments provide insight into the mechanism of this nucleophilic aromatic substitution. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).HPLC of Formula: 321-28-8

The Article related to indolenine preparation nucleophilic aromatic substitution methoxyphenyl acetonitrile organolithium, aromatic substitution methoxyphenyl acetonitrile organolithium indolenine cyclization and other aspects.HPLC of Formula: 321-28-8

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

On August 26, 2022, Zhang, Qingyu; Chan, Yung-Yin; Zhang, Muyin; Yeung, Ying-Yeung; Ke, Zhihai published an article.Name: 2-Methylanisole The title of the article was Hypervalent Chalcogenonium…蟺 Bonding Catalysis. And the article contained the following:

A proof-of-concept study of hypervalent chalcogenonium…蟺 bonding catalysis was performed. A new catalytic strategy using 1,2-oxaselenolium salts as chalcogen bond donors and alkenes as chalcogen bond acceptors is described. The feasibility of this concept is demonstrated by the use of trisubstituted selenonium salts in the metal-free catalytic hydrofunctionalization and polymerization of alkenes via unconventional seleniranium ion-like intermediates. The results indicate that counter anions have a significant effect on the catalysis based on hypervalent chalcogenonium…蟺 bonding interactions. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Name: 2-Methylanisole

The Article related to hypervalent oxaselenolium bonding catalysis hydrofunctionalization styrene polymerization, chalcogen bonding, hydrofunctionalization, hypervalent selenium, lewis acids, organocatalysis and other aspects.Name: 2-Methylanisole

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

Zhang, Lizhu; Wei, Cunbo; Wu, Jiawen; Liu, Dan; Yao, Yinchao; Chen, Zhuo; Liu, Jianxun; Yao, Chang-Jiang; Li, Dinghua; Yang, Rongjie; Xia, Zhonghua published an article in 2022, the title of the article was Photoinduced inverse Sonogashira coupling reaction.HPLC of Formula: 150-78-7 And the article contains the following content:

A transition-metal and photocatalyst-free inverse Sonogashira coupling reaction between iodoalkynes and (hetero)arenes or alkenes under visible-light irradiation was reported. Mechanistic and computational studies suggested that iodoalkynes was directly activated by visible light irradiation, and an excited state iodoalkyne acted as an “alkynyl radical synthetic equivalent”, reacting with a series of C(sp2)-H bonds for coupling products. This work should open new windows in radical chem. and alkynylation method. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).HPLC of Formula: 150-78-7

The Article related to arene iodoalkynearene phtochem inverse sonogashira coupling, diarylalkyne preparation, alkene iodoalkynearene phtochem inverse sonogashira coupling, iodoalkylalkynyl arene preparation and other aspects.HPLC of Formula: 150-78-7

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

On November 16, 2018, Lim, Soobin; Song, Dalnim; Jeon, Seungwon; Kim, Youngsuk; Kim, Hyunseok; Lee, Sanghee; Cho, Hyungdo; Lee, Byung Chul; Kim, Sang Eun; Kim, Kimoon; Lee, Eunsung published an article.Related Products of 321-28-8 The title of the article was Cobalt-Catalyzed C-F Bond Borylation of Aryl Fluorides. And the article contained the following:

A mild and practical Co-catalyzed defluoroborylation of fluoroarenes is presented for the 1st time. The method permits straightforward functionalization of fluoroarenes, with high selectivity for borylation of C-F over C-H bonds, and a tolerance for aerobic conditions. Also, two-step 18F-fluorination was achieved for expanding the scope of 18F-positron emission tomog. probes. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Related Products of 321-28-8

The Article related to aryl fluoride cobalt catalyzed defluoroborylated, borylphenyl indole preparation crystal structure fluorination, mol structure borylphenyl indole, arylborane preparation fluorination and other aspects.Related Products of 321-28-8

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Ether – Wikipedia,
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On October 15, 2020, Tan, Chaoqun; Wu, Haotian; He, Huan; Lu, Xu; Gao, Haiying; Deng, Jing; Chu, Wenhai published an article.SDS of cas: 150-78-7 The title of the article was Anti-inflammatory drugs degradation during LED-UV365 photolysis of free chlorine: roles of reactive oxidative species and formation of disinfection by-products. And the article contained the following:

Light-emitting diode (LED) is environmentally friendly with longer life compared with traditionally mercury lamps. This study investigated the non-steroidal anti-inflammatory drugs (NSAIDs)- phenacetin (PNT) and acetaminophen (ACT)- removal during LED-UV (365 nm) photolysis of free available chlorine (FAC). Degradation of PNT and ACT during LED-UV365/FAC treatment at pH 5.5-8.5 followed the pseudo-first order kinetics. The presence of hydroxyl radicals (路OH), reactive chlorine species (RCS), and ozone (O3, transformed from O (3P)) were screened by using scavengers of ethanol (EtOH), tert-Butanol (TBA), and 3-buten-2ol, and 4-hydroxy-2,2,6,6-tetramethylpiperidine (TEMP), and quantified by competition kinetics with probing compounds of nitrobenzene (NB), benzoate acid (BA), 1,4-dimethoxybenzene (DMOB). Higher pH would lead to decrease of 路OH contribution and an increase of FAC contribution to PNT and ACT degradation It has been determined that the contribution of O3 to degradation of PNT and ACT was less than 5% for all pHs, and O3(P) reacts toward EtOH with second-order constant of 1.52 x 109 M-1s-1. LED-UV365/FAC system reduced the formation of five typical CX3-R type disinfection byproducts (DBPs) as well as the cytotoxicity and genotoxicity of water samples at pH 5.5 and 8.5, compared with FAC alone. The decrease of DBPs formation resulted from fast FAC decomposition upon LED-UV365 irradiation A feasible reaction pathway of DBPs formation in the LED-UV365/FAC system was examined with d. functional theory (DFT). For FAC decay during LED-UV365/FAC with effluent from wastewater, the residual FAC in 15 min was 0.8 mg/L (lower than limit of 0.2 mg/L) once initial FAC was 2.0 mg/L. The results indicate that more tests on the balance of target pollutant removal efficiency, residual FAC and cost should be explored in LED-UV365/FAC system for application. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).SDS of cas: 150-78-7

The Article related to antiinflammatory drug chlorine disinfection byproduct photolysis degradation reactive species, acetaminophen, disinfection by-products, free active chlorine, led-uv(365), phenacetin and other aspects.SDS of cas: 150-78-7

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