Month: October 2022

Safety of 1,2-DiphenyldisulfaneIn 2021 ,《Programmed Formation of HCN Oligomers through Organosulfur Catalysis》 appeared in Journal of Organic Chemistry. The author of the article were Grundke, Caroline; Kong, Caleb; Kampf, Christopher J.; Gupton, B. Frank; McQuade, D. Tyler; Opatz, Till. The article conveys some information:

An efficient, inexpensive, and reliable synthesis of diaminomaleonitrile (DAMN, 1) is described starting from readily available acetone cyanohydrin as the source of hydrogen cyanide (HCN). Diaminomaleonitrile (DAMN) is known to be an important intermediate in heterocyclic and medicinal chem. as well as being a possible precursor for the origin of life’s hypothesis within prebiotic chem. The mechanism of its formation through organosulfur catalysis has been investigated by electrospray ionization mass spectrometry (ESI-MS) using two newly synthesized cationic “”marker”” mols. as a tool that allows for sensitive detection. As a result, the proposed mechanism of a thiocyanate-mediated synthesis of the HCN tetramer DAMN starting from organic disulfides was confirmed. The results came from multiple reactions, including the reaction of 1,2-Diphenyldisulfane(cas: 882-33-7Safety of 1,2-Diphenyldisulfane)

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.Oxygen is more electronegative than carbon, thus the alpha hydrogens of ethers are more acidic than those of simple hydrocarbons. Safety of 1,2-Diphenyldisulfane They are far less acidic than alpha hydrogens of carbonyl groups (such as in ketones or aldehydes), however.

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

COA of Formula: C10H20O5In 2020 ,《Supramolecular assemblies based on crown- and phosphoryl-substituted phthalocyanines and their metal complexes in microheterogeneous media》 appeared in Russian Chemical Bulletin. The author of the article were Goldshleger, N. F.; Lapshina, M. A.; Baulin, V. E.; Shiryaev, A. A.; Gorbunova, Yu. G.; Tsivadze, A. Yu.. The article conveys some information:

Abstract: The review is concerned with studies on peculiar features of supramol. organization of phthalocyanines (Pc) bearing complex-forming substituents (15-crown-5, 2-oxyphenylphosphonic acid residues) in organized aqueous microheterogeneous media based on cationic and anionic surfactants, bile salts (BS) including sodium deoxycholate (SDC), as well as polyelectrolytes and amphiphilic polymers including a phosphate buffer (pH 7.4). Organized, SDC-based fluorescence-active phthalocyanine-containing hydrogels obtained for the first time are also considered. In vitro accumulation and localization of Pc in human cervical adenocarcinoma cells, HeLa, as well as the photochem. and sensitizing properties of Pc including light cytotoxicity and photoinduced generation of reactive oxygen species were demonstrated taking octa-crown-substituted magnesium phthalocyaninate as an example.1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5COA of Formula: C10H20O5) was used in this study.

1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. COA of Formula: C10H20O5

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

Synthetic Route of C7H7IOIn 2020 ,《Chemoselective Rhodium-Catalyzed Borylation of Bromoiodoarenes Under Mild Conditions》 appeared in Journal of Organic Chemistry. The author of the article were Varni, Anthony J.; Bautista, Michael V.; Noonan, Kevin J. T.. The article conveys some information:

A chemoselective rhodium-catalyzed borylation has been developed for the preparation of aryl boronate esters. The reaction proceeds under mild conditions with excellent selectivity for C-I bonds in bromoiodoarenes and exhibits broad functional group tolerance. This procedure can act as a complementary approach toward bifunctional arenes along with other metal-catalyzed borylations. Addnl., the reaction’s utility in the preparation of monomers for metal-catalyzed cross-coupling polymerization is demonstrated. The experimental part of the paper was very detailed, including the reaction process of 1-Iodo-2-methoxybenzene(cas: 529-28-2Synthetic Route of C7H7IO)

1-Iodo-2-methoxybenzene(cas: 529-28-2) participates in palladium catalyzed enantioselective Heck arylation of 2,3-dihydrofuran in the presence of chiral ionic liquids containing L-prolinate and L-lactate anions and non-chiral quaternary ammonium cations.Synthetic Route of C7H7IO

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

Safety of 2-Hydroxy-4-methoxybenzaldehydeIn 2019 ,《Synthesis of new TCH/Ni-based nanocomposite supported on SBA-15 and its catalytic application for preparation of benzimidazole and perimidine derivatives》 was published in Applied Organometallic Chemistry. The article was written by Kalhor, Mehdi; Rezaee-Baroonaghi, Fahimeh; Dadras, Akbar; Zarnegar, Zohre. The article contains the following contents:

A stable nickel-decorated SBA-15 nanocomposite (Ni/TCH@SBA-15) was synthesized through surface modification of silica nanoparticles with 3-chloropropyltriethoxysilane (CPTES) and thiocarbohydrazide (TCH) followed by metal-ligand coordination with Ni(II). The structure of this organometallic nanocomposite was characterized by Fourier transform-IR, field emission-SEM, EDAX, transmission electron microscopy, at. absorption spectroscopy and N2 adsorption-desorption (Brunauer-Emmett-Teller) techniques. The catalytic performance of Ni/TCH@SBA-15 (NNTS-15) was determined for synthesis of 2-aryl-substituted benzimidazoles I [R1 = H, Me, NO2; R2 = H, 4-MeO, 2,3-di-Cl, etc.] and 2,3-dihydroperimidines II. The excellent yields within shorter reaction times, simplicity of catalytic methods, non-toxicity and clean reactions, mild reaction conditions and easy work-up procedure were important merits of these synthetic protocols. Moreover, the Ni(II) bonded to SBA-15 surface was stable under catalytic reaction conditions resulting in its efficient recycling and reuse. The experimental process involved the reaction of 2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3Safety of 2-Hydroxy-4-methoxybenzaldehyde)

2-Hydroxy-4-methoxybenzaldehyde(cas: 673-22-3) is the main component of root bark essential oil of Periploca sepium Bunge. It is a potential tyrosinase inhibitor present in African medicinal plants. 2-Hydroxy-4-methoxybenzaldehyde was used in the synthesis of Schiff base ligand.Safety of 2-Hydroxy-4-methoxybenzaldehyde

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

Quality Control of 1-Iodo-2-methoxybenzeneIn 2019 ,《Metal-free synthesis of gem-silylboronate esters and their Pd(0)-catalyzed cross-coupling with aryliodides》 was published in Organic & Biomolecular Chemistry. The article was written by Wu, Chaoqiang; Bao, Zhicheng; Xu, Xing; Wang, Jianbo. The article contains the following contents:

A transition-metal-free method for the synthesis of gem-silylboronate esters with arylboronic acids and trimethylsilyldiazomethane (TMSCHN2) has been developed. This transformation is a straightforward homologation of arylboronic acids and features wide substrate scope and good functional-group tolerance. The gem-silylboronate esters undergo efficient Suzuki-Miyaura cross-coupling with aryliodides and the silyl group of the product can be further functionalized. Tertiary carbon centers with different substituents can be constructed successfully by selective and sequential functionalization. The experimental process involved the reaction of 1-Iodo-2-methoxybenzene(cas: 529-28-2Quality Control of 1-Iodo-2-methoxybenzene)

1-Iodo-2-methoxybenzene(cas: 529-28-2) participates in palladium catalyzed enantioselective Heck arylation of 2,3-dihydrofuran in the presence of chiral ionic liquids containing L-prolinate and L-lactate anions and non-chiral quaternary ammonium cations.Quality Control of 1-Iodo-2-methoxybenzene

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

Quality Control of 1,2-DiphenyldisulfaneIn 2019 ,《Unsymmetrical Disulfides Synthesis via Sulfenium Ion》 was published in Chemistry – An Asian Journal. The article was written by Parida, Amarchand; Choudhuri, Khokan; Mal, Prasenjit. The article contains the following contents:

An umpolung approach for the synthesis of unsym. disulfides via sulfenium ion was reported. In-situ generated electrophilic sulfenium ion from electron-rich thiols reacted with second thiols to yield unsym. disulfides. Using an iodine catalyst and 4-dimethylaminopyridine (DMAP)/water as promoter, the target synthesis were achieved in one-pot under aerobic condition. In the part of experimental materials, we found many familiar compounds, such as 1,2-Diphenyldisulfane(cas: 882-33-7Quality Control of 1,2-Diphenyldisulfane)

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.The C-O bonds that comprise simple ethers are strong. They are unreactive toward all but the strongest bases. Although generally of low chemical reactivity, they are more reactive than alkanes. Quality Control of 1,2-Diphenyldisulfane

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

《Efficient Sensing of Explosives by Using Fluorescent Nonporous Films of Oligophenyleneethynylene Derivatives Thanks to Optimal Structure Orientation and Exciton Migration》 was published in Chemistry – A European Journal in 2014. These research results belong to Caron, Thomas; Pasquinet, Eric; van der Lee, Arie; Pansu, Robert B.; Rouessac, Vincent; Clavaguera, Simon; Bouhadid, Myriam; Serein-Spirau, Francoise; Lere-Porte, Jean-Pierre; Montmeat, Pierre. Related Products of 74029-40-6 The article mentions the following:

The fluorescence of thin films of a diimine-substituted phenyleneethynylene compound can be efficiently quenched by nitroarom. vapors, which is not the case for the unsubstituted parent compound Thin-film porosity is usually considered to be an essential factor for efficient quenching, but in the present case the origin of the quenching is completely different, as both films are nonporous and hermetic to 2,4-dinitrotoluene (DNT) mols. The mol. organization in the two crystallized thin films offers a low level of π stacking for both compounds, but the orientation of the phenylenethynylene fluorophore differs markedly with respect to the surface of the films. For the substituted compound, the fluorophore is almost parallel to the surface, thus making it readily available to mols. of a nitroarom. quencher. This rationale is also observed in the case of a related compound bearing methoxy side chains instead of the long octyloxy moieties. Fluorescence-lifetime experiments show that the efficient quenching process in the nonporous crystallized films of the substituted compound is due to a fast (<70 ps) diffusion of excitons from the bulk of the film toward the surface where they are quenched, thus providing evidence of antenna effects. The experimental part of the paper was very detailed, including the reaction process of 1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6Related Products of 74029-40-6)

1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers.Although ethers resist hydrolysis, they are cleaved by hydrobromic acid and hydroiodic acid. Hydrogen chloride cleaves ethers only slowly. Related Products of 74029-40-6

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

《Highly Selective Room-Temperature Suzuki-Miyaura Coupling of Bromo-2-sulfonyloxypyridines for Unsymmetrical Diarylpyridines》 was written by Jeon, Young-Kyo; Lee, Jae-Yeon; Kim, Seo-Eun; Kim, Won-Suk. Category: ethers-buliding-blocksThis research focused onunsym diarylpyridine chemoselective preparation Suzuki coupling bromosulfonyloxypyridine boronic acid. The article conveys some information:

A new and mild synthetic approach has been developed for the synthesis of pharmaceutically important unsym. diarylpyridines via chemoselective Suzuki-Miyaura coupling reactions of bromo-2-sulfonyloxypyridines. Most reactions allow for facile access to aryl-2-sulfonyloxypyridines at room temperature in yields of 5-99% with excellent chemoselectivity in the presence of Pd(OAc)2 (2.0 mol %) and Ad2BnP (2.4 mol %). The second arylation of the remaining tosyl or triflyl group in the monoarylpyridine derivatives obtained was successfully accomplished for the synthesis of unsym. 2,3-, 2,4-, 2,5-, and 2,6-diarylpyridine derivatives Furthermore, a one-pot synthesis of unsym. diarylpyridines starting from bromo-2-sulfonyloxypyridine was accomplished to demonstrate the practical convenience. Finally, with this method, an antibacterial agent, a topoisomerase inhibitor, and etoricoxib, a nonsteroidal anti-inflammatory drug, were successfully synthesized from the corresponding bromo-2-hydroxypyridines in overall yields of 80, 86, and 49%, resp. The experimental part of the paper was very detailed, including the reaction process of 3-Methoxyphenylboronic acid(cas: 10365-98-7Category: ethers-buliding-blocks)

3-Methoxyphenylboronic acid(cas: 10365-98-7) belongs to boronic acids. Boronic acids are mild Lewis acids which are generally stable and easy to handle, making them important to organic synthesis.Category: ethers-buliding-blocks

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

《Trifarotene for the Treatment of Facial and Truncal Acne》 was written by Bell, Katheryn A.; Brumfiel, Caitlin M.; Haidari, Wasim; Boger, Laura. HPLC of Formula: 106685-40-9This research focused ontrifarotene treatment facial truncal acne; acne vulgaris; facial acne; retinoid; trifarotene; truncal acne. The article conveys some information:

This article reviews clin. trials to assess the efficacy, safety, and clin. application of trifarotene 0.005% cream (Aklief). A systematic review of the literature was performed using the terms trifarotene OR Aklief OR CD5789 in MEDLINE (PubMed) and EMBASE databases. Articles prior to May 2020 were considered for inclusion. Bibliogs. and ClinicalTrials.gov were also searched to identify further studies. Relevant English language and human studies related to pharmacol., clin. trials, and safety were considered. In the 52-wk phase III trial, treatment success rates for facial acne (Investigator Global Assessment [IGA] rating of no or almost no acne) and truncal acne (Physicianprimes Global Assessment [PGA] rating of no or almost no acne) were 65.1% and 66.9%, resp. Overall success rates (IGA and PGA success in the same patient) were 57.9%; 52.8% of patients had a Dermatol. Quality of Life Index score of 0 or 1, compared with 22.6% at baseline. Trifarotene was well tolerated, with pruritus, irritation, and sunburn as the most common adverse effects. Trifarotene is a newly Food and Drug Administration-labeled fourth-generation topical retinoid that shows particular promise in the treatment of facial and truncal acne vulgaris. It is an effective and safe addition to currently available retinoids. Trifarotene is effective and safe for treatment of facial and truncal acne. Future trials should compare its efficacy and tolerability with that of the older, clin. established retinoids. Despite efficacy, cost may be a prohibitive factor. In the part of experimental materials, we found many familiar compounds, such as 6-(3-(Adamantan-1-yl)-4-methoxyphenyl)-2-naphthoic acid(cas: 106685-40-9HPLC of Formula: 106685-40-9)

6-(3-(Adamantan-1-yl)-4-methoxyphenyl)-2-naphthoic acid(cas:106685-40-9) is a third-generation synthetic retinoid and a highly lipophilic compound derived from naphthoic acid. It is widely used in the treatment of acne.HPLC of Formula: 106685-40-9

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

Application In Synthesis of 1,2,3-Trifluoro-4-methoxybenzeneOn November 2, 2006 ,《Discovery of [4-Amino-2-(1-methanesulfonylpiperidin-4-ylamino)pyrimidin-5-yl](2,3-difluoro-6- methoxyphenyl)methanone (R547), A Potent and Selective Cyclin-Dependent Kinase Inhibitor with Significant in Vivo Antitumor Activity》 appeared in Journal of Medicinal Chemistry. The author of the article were Chu, Xin-Jie; DePinto, Wanda; Bartkovitz, David; So, Sung-Sau; Vu, Binh T.; Packman, Kathryn; Lukacs, Christine; Ding, Qingjie; Jiang, Nan; Wang, Ka; Goelzer, Petra; Yin, Xuefeng; Smith, Melissa A.; Higgins, Brian X.; Chen, Yingsi; Xiang, Qing; Moliterni, John; Kaplan, Gerald; Graves, Bradford; Lovey, Allen; Fotouhi, Nader. The article conveys some information:

The cyclin-dependent kinases (CDKs) and their cyclin partners are key regulators of the cell cycle. Since deregulation of CDKs is found with high frequency in many human cancer cells, pharmacol. inhibition of CDKs with small mols. has the potential to provide an effective strategy for the treatment of cancer. The 2,4-diamino-5-ketopyrimidines 6 reported here represent a novel class of potent and ATP-competitive inhibitors that selectively target the cyclin-dependent kinase family. This diaminopyrimidine core with a substituted 4-piperidine moiety on the C2-amino position and 2-methoxybenzoyl at the C5 position has been identified as the critical structure responsible for the CDK inhibitory activity. Further optimization has led to a good number of analogs that show potent inhibitory activities against CDK1, CDK2, and CDK4 but are inactive against a large panel of serine/threonine and tyrosine kinases (Ki > 10 μM). As one of these representative analogs, compound 39 (I; R547) has the best CDK inhibitory activities (Ki = 0.001, 0.003, and 0.001 μM for CDK1, CDK2, and CDK4, resp.) and excellent in vitro cellular potency, inhibiting the growth of various human tumor cell lines including an HCT116 cell line (IC50 = 0.08 μM). An X-ray crystal structure of 39 bound to CDK2 has been determined in this study, revealing a binding mode that is consistent with our SAR. Compound 39 demonstrates significant in vivo efficacy in the HCT116 human colorectal tumor xenograft model in nude mice with up to 95% tumor growth inhibition. On the basis of its superior overall profile, 39 was chosen for further evaluation and has progressed into Phase I clin. trial for the treatment of cancer. In the experimental materials used by the author, we found 1,2,3-Trifluoro-4-methoxybenzene(cas: 203245-16-3Application In Synthesis of 1,2,3-Trifluoro-4-methoxybenzene)

1,2,3-Trifluoro-4-methoxybenzene(cas: 203245-16-3) is a member of aromaticfluorinated building blocks. Depending on which substituents are present, fluoroaromatic intermediates can be converted into fluorinated or fluorine-free commercial end products.Fluorine-containing aromatics have been incorporated into drugs (hypnotics, tranquilizers, antiinflammatory agents, analgesics, antibacterials).Application In Synthesis of 1,2,3-Trifluoro-4-methoxybenzene

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