Month: October 2022

Roscales, Silvia; Csaky, Aurelio G. published an article in 2021. The article was titled 《Synthesis of Ketones by C-H Functionalization of Aldehydes with Boronic Acids under Transition-Metal-Free Conditions》, and you may find the article in Angewandte Chemie, International Edition.COA of Formula: C9H10O2 The information in the text is summarized as follows:

A method for the synthesis of ketones from aldehydes and boronic acids via a transition-metal-free C-H functionalization reaction is reported. The method employs nitrosobenzene as a reagent to drive the simultaneous activation of the boronic acid as a boronate and the activation of the C-H bond of the aldehyde as an iminium species that triggers the key C-C bond-forming step via an intramol. migration from boron to carbon. These findings constitute a practical, scalable, and operationally straightforward method for the synthesis of ketones.2-(Benzyloxy)acetaldehyde(cas: 60656-87-3COA of Formula: C9H10O2) was used in this study.

2-(Benzyloxy)acetaldehyde(cas: 60656-87-3) is a non-natural aldehyde. It undergoes enantioselective Mukaiyama aldol reaction with silylketene acetal nucleophiles in the presence of C2-symmetric bis(oxazolinyl)pyridine Cu(II) complex (catalyst).COA of Formula: C9H10O2

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

Li, Xiaojiang; Sun, Leitao; Lv, Xin; Qi, Jie; Lu, Hongsheng; Wu, Yuanpeng; wang, Baogang published an article in 2021. The article was titled 《Sustainable separation of petroleum hydrocarbons pollutant using hydrophobic deep eutectic solvents regulated by CO2》, and you may find the article in Journal of Environmental Chemical Engineering.HPLC of Formula: 150-19-6 The information in the text is summarized as follows:

Petroleum hydrocarbons pollutants are the serious environmental hazards in the exploitation of petroleum resources. As comparison to the traditional solvent for petroleum hydrocarbons removal, deep eutectic solvents (DESs), as the ideal alternate for organic solvents, have non-toxicity, non-flammability and lower volatility. Whereas, the recycling of DES is still the great challenge for sustainable separation Herein, hydrophobic DESs (HDESs) with the CO2 switchable-hydrophilicity are developed, aiming to sustainably sep. petroleum hydrocarbons pollutions. The HDESs are formed by hydrogen bonds between the phenolic compounds as hydrogen bond donors (HBDs) and tertiary amines as hydrogen bond acceptors (HBAs), which was demonstrated by the spectroscopic detection. Interestingly, the HDES exhibits better CO2 -switchable behavior than traditional switchable-solvent, where the phase transition is induced by the protonation of HBA upon CO2and the deprotonation of HBD in HCO-3 solution of HBA. Furthermore, the sustainable separation for oils (heptane, diesel oil and crude oil) is successfully completed, and the HDES is also easily recovered upon N2/65°C. Finally, the HDES is effectively applied in removing petroleum hydrocarbons from oily wastes (oil sands and oily sludge). The results show that more than 98% oil is removed from oil sands, and 85.02% oil is also removed from oily sludge. Thus, the HDESs will be expected to treated as the effective extractant for sustainable and cleaner separation of petroleum hydrocarbons- contaminated waste. After reading the article, we found that the author used m-Methoxyphenol(cas: 150-19-6HPLC of Formula: 150-19-6)

m-Methoxyphenol(cas: 150-19-6) may be used as an analytical standard for the determination of the analyte in wine, coffee beans, wood samples, and mainstream smoke by gas chromatography (GC) based techniques.HPLC of Formula: 150-19-6

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

In 2022,Zhao, Yanliang; Wang, Honglei; Wu, Naiwei; Yang, Junxia; Sun, Jikai; Zhai, Dong; Deng, Weiqiao published an article in International Journal of Quantum Chemistry. The title of the article was 《The mechanism of sugar produced from simple glycolaldehyde derivative at ambient conditions》.Recommanded Product: 2-(Benzyloxy)acetaldehyde The author mentioned the following in the article:

A benchmark of sugar produced from simple glycolaldehyde derivative has been achieved at ambient conditions (Science, 2004, 305, 1752), which is the most important step to produce life in nature. However, the mechanism has never been clearly understood. Here, we report a reaction mechanism which includes a two-step synthesis of sugars by selective aldol reactions based on the d. functional theory (DFT) calculations Results show that the prochirality of attacking orientation of the enamine intermediate and steric effect in proton transfer is the main cause for stereochem. preference. This work provides the theor. insight of sugar produced in glycolaldehyde procedure and may assist the improvement of catalyst design for this procedure. After reading the article, we found that the author used 2-(Benzyloxy)acetaldehyde(cas: 60656-87-3Recommanded Product: 2-(Benzyloxy)acetaldehyde)

2-(Benzyloxy)acetaldehyde(cas: 60656-87-3) is a non-natural aldehyde. It undergoes enantioselective Mukaiyama aldol reaction with silylketene acetal nucleophiles in the presence of C2-symmetric bis(oxazolinyl)pyridine Cu(II) complex (catalyst).Recommanded Product: 2-(Benzyloxy)acetaldehyde

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

Related Products of 106685-40-9In 2021 ,《In-silico screening for identification of potential inhibitors against SARS-CoV-2 transmembrane serine protease 2 (TMPRSS2)》 was published in European Journal of Pharmaceutical Sciences. The article was written by Barge, Sagar; Jade, Dhananjay; Gosavi, Gokul; Talukdar, Narayan Chandra; Borah, Jagat. The article contains the following contents:

A new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a respiratory infection out broke in Dec. 2019 in Wuhan, Hubei province, China, resulted in pandemic conditions worldwide. COVID-19 spread swiftly around the world over with an alert of an emergency for an adequate drug. Therefore, in this research, we repurposed the FDA-approved medicines to find the prominent drug used to cure the COVID infected patients. We performed homol. modeling of the transmembrane serine protease 2 (TMPRSS2), responsible for the viral entry. The prediction of the transmembrane region and the Conserved Domain in TMPRSS2 protein was made for docking. 4182 FDA-approved compounds from the ZINC database were downloaded and used for the calculation of physicochem. properties. Two thousand eight hundred fifteen screened compounds were used for mol. docking against the modelled protein structure. From which top hit compounds based on binding energy were extracted At 1st site pose, ZINC3830554 showed the highest binding energy -12.91kcal/mol by forming Salt Bridge at LYS143, Hydrogen bond at ALA8, VAL45, HIS47, SER142, ASN277, ASN359, and TRP363. The hydrophobic Interactions at PHE3, LEU4, ALA7, ALA8, ALA139, PRO197, and PHE266. In the 2nd site pose, ZINC203686879 shows the highest binding energy (-12.56 kcal/mol) and forms a hydrophobic interaction with VAL187, VAL189, HIS205, LYS301, GLN347, TRP370 and hydrogen bond was at GLY300, THR302, GLN347, SER350 residues. These hit compounds were subjected to stability checks between the protein-ligand complex through the dynamics simulation (MD), and binding free energy was calculated through the Mol. Mechanics energies combined with Poisson-Boltzmann (MM/PBSA) method. We hope that hit compounds would be an efficient inhibitor that can block the TMPRSS2 activity and resist the entry of the SARS-CoV-2 virus into targeted human cells by reducing the virus′s infectivity and transmissibility.6-(3-(Adamantan-1-yl)-4-methoxyphenyl)-2-naphthoic acid(cas: 106685-40-9Related Products of 106685-40-9) was used in this study.

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.Related Products of 106685-40-9

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

Quality Control of 3-Methoxyphenylboronic acidIn 2021 ,《Nickel(II)-Catalyzed Addition of Aryl and Heteroaryl Boroxines to the Sulfinylamine Reagent TrNSO: The Catalytic Synthesis of Sulfinamides, Sulfonimidamides and Primary Sulfonamides》 was published in Journal of the American Chemical Society. The article was written by Lo, Pui Kin Tony; Willis, Michael C.. The article contains the following contents:

A redox-neutral Ni(II)-catalyzed addition of (hetero)aryl boroxines to N-sulfinyltritylamine (TrNSO) was developed to afford sulfonimidamides I [R = 2-MeC6H4, 4-FC6H4, 2-furyl, etc.; R1 = (CH2)2CN, pyrrolidin-1-yl, piperidin-1-yl, etc.] and primary sulfonamides II [R2 = 2-thienyl, 4-FC6H4, 4-MeOC6H4, etc.]. The reactions used a catalyst generated from the combination of com., air-stable NiCl2·(glyme) and a com. available bipyridine ligand. These transformations were all achieved using one-pot procedures. For larger-scale reactions, the catalyst loading could be reduced to 1 mol %. In addition to this study using 3-Methoxyphenylboronic acid, there are many other studies that have used 3-Methoxyphenylboronic acid(cas: 10365-98-7Quality Control of 3-Methoxyphenylboronic acid) was used in this study.

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.Quality Control of 3-Methoxyphenylboronic acid

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

HPLC of Formula: 882-33-7In 2019 ,《Sulfonyl Fluoride Synthesis through Electrochemical Oxidative Coupling of Thiols and Potassium Fluoride》 was published in Journal of the American Chemical Society. The article was written by Laudadio, Gabriele; Bartolomeu, Aloisio de A.; Verwijlen, Lucas M. H. M.; Cao, Yiran; de Oliveira, Kleber T.; Noel, Timothy. The article contains the following contents:

Sulfonyl fluorides are valuable synthetic motifs for a variety of applications, among which sulfur(VI) fluoride exchange-based “”click chem.”” is currently the most prominent. Consequently, the development of novel and efficient synthetic methods to access these functional groups is of great interest. Herein, the authors report a mild and environmentally benign electrochem. approach to prepare sulfonyl fluorides using thiols or disulfides, as widely available starting materials, in combination with KF, as an inexpensive, abundant and safe fluoride source. No addnl. oxidants nor addnl. catalysts are required and, due to mild reaction conditions, the reaction displays a broad substrate scope, including a variety of alkyl, benzyl, aryl and heteroaryl thiols or disulfides. The experimental part of the paper was very detailed, including the reaction process of 1,2-Diphenyldisulfane(cas: 882-33-7HPLC of Formula: 882-33-7)

1,2-Diphenyldisulfane(cas: 882-33-7) belongs to ethers.Although ethers resist hydrolysis, they are cleaved by hydrobromic acid and hydroiodic acid. Hydrogen chloride cleaves ethers only slowly. HPLC of Formula: 882-33-7

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

Formula: C9H12O2On March 28, 1979, Kende, Andrew S.; Curran, Dennis P. published an article in Journal of the American Chemical Society. The article was 《Regiochemical control in dihydrophenanthrene synthesis. A photochemical total synthesis of juncusol》. The article mentions the following:

Three approaches are described toward the total synthesis of juncusol (I), a cytotoxic constituent of the needlerush Juncus roemerianus. Wittig condensation of the phosphonium salt derived from 2-methyl-3-methoxybenzyl bromide with 3-methoxy-4-methyl-5-cyanobenzaldehyde gave a mixture of cyanostilbenes, (E)- and (Z)-2,3-Me(MeO)C6H3CH:CHC6H2(CN)(OMe)Me-3,5,4. Reduction of this mixture gave the diarylethane, which failed to undergo oxidative aryl-aryl cyclization. Photocyclization of the stilbenes gave a 7:1 mixture of phenanthrenes in which the unwanted 7-cyano regioisomer predominated. The Ziegler modification of the Ullmann coupling was used to prepare the sym. dialdehyde II, which underwent successive Wittig reaction with Ph3P:CH2 and hydride reduction to give the key intermediate III. Photocyclization of III gave a dihydrophenanthrene alc. which underwent successive oxidation to an aldehyde, Wittig condensation with Ph3P:CH2, and demethylation to give I. The overall yield of I from 2-methyl-3-methoxybenzaldehyde is 18% over 10 steps; the route provides the first total synthesis of this natural product. The experimental part of the paper was very detailed, including the reaction process of (3-Methoxy-2-methylphenyl)methanol(cas: 33797-34-1Formula: C9H12O2)

(3-Methoxy-2-methylphenyl)methanol(cas: 33797-34-1) belongs to ethers. Ethers lack the hydroxyl groups of alcohols. Formula: C9H12O2 Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other.

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

In 2012,Tamura, Tomonori; Tsukiji, Shinya; Hamachi, Itaru published 《Native FKBP12 Engineering by Ligand-Directed Tosyl Chemistry: Labeling Properties and Application to Photo-Cross-Linking of Protein Complexes in Vitro and in Living Cells》.Journal of the American Chemical Society published the findings.Application of 139115-91-6 The information in the text is summarized as follows:

The ability to modify target native (endogenous) proteins selectively in living cells with synthetic mols. should provide powerful tools for chem. biol. To this end, the authors recently developed a novel protein labeling technique termed ligand-directed tosyl (LDT) chem. This method uses labeling reagents in which a protein ligand and a synthetic probe are connected by a tosylate ester group. The authors previously demonstrated its applicability to the selective chem. labeling of several native proteins in living cells and mice. However, many fundamental features of this chem. remain to be studied. In this work, the authors investigated the relation between the LDT reagent structure and labeling properties by using native FK506-binding protein 12 (FKBP12) as a target protein. In vitro experiments revealed that the length and rigidity of the spacer structure linking the protein ligand and the tosylate group have significant effects on the overall labeling yield and labeling site. In addition to histidine, which the authors reported previously, tyrosine and glutamate residues were identified as amino acids that are modified by LDT-mediated labeling. Through the screening of various spacer structures, piperazine was optimal for FKBP12 labeling in terms of labeling efficiency and site specificity. Using a piperazine-based LDT reagent containing a photoreactive probe, the authors successfully demonstrated the labeling and UV-induced covalent crosslinking of FKBP12 and its interacting proteins in vitro and in living cells. This study not only furthers the understanding of the basic reaction properties of LDT chem. but also extends the applicability of this method to the investigation of biol. processes in mammalian cells. The results came from multiple reactions, including the reaction of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6Application of 139115-91-6)

tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6) belongs to ethers. Ethers lack the hydroxyl groups of alcohols. Application of 139115-91-6 Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other.

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

In 2013,El-Gendy, Bahaa El-Dien M.; Zadeh, Ebrahim H. Ghazvini; Sotuyo, Ania C.; Pillai, Girinath G.; Katritzky, Alan R. published 《α-substitution effects on the ease of S → N-acyl transfer in aminothioesters》.Chemical Biology & Drug Design published the findings.Product Details of 139115-91-6 The information in the text is summarized as follows:

The present work investigates the ease of ligations in compounds with all carbon/oxygen (but no amidic group) backbones as compared with those found in peptide sequences with 5-, 6-, and 8-membered cyclic TSs, aiming initially to examine the differential effect of cysteine-free acid, α-ester, and α-amide groups on transition state conformation during the ligation process. In S-acylcysteines and homocysteines the efficacy and rate of S → N-acyl transfer (5 and 6 cyclic TSs) vary with the size of S-acyl group. Conformational and quantum chem. calculations indicate that the spatial distance, b(N-C), between the terminal amine and the thioester carbon is shortened by α-C(O)X (X = OH, OMe, NH2) substituents. The experimental part of the paper was very detailed, including the reaction process of tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6Product Details of 139115-91-6)

tert-Butyl (2-(2-hydroxyethoxy)ethyl)carbamate(cas: 139115-91-6) 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. Product Details of 139115-91-6

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

In 2019,Journal of Research in Medical Sciences included an article by Mokhtari, Fatemeh; Shajari, Atefeh; Iraji, Fariba; Faghihi, Gita; Siadat, Amir Hossein; Sadeghian, Giti; Adibi, Neda. Safety of 6-(3-(Adamantan-1-yl)-4-methoxyphenyl)-2-naphthoic acid. The article was titled 《The effectiveness of adapalene 0.1% with intense pulsed light versus benzoyl peroxide 5% with intense pulsed light in the treatment of acne vulgaris: A comparative study》. The information in the text is summarized as follows:

Background: Acne vulgaris (AV) is one of the most common skin diseases with major psychol. impacts. Hence, selecting the best treatment modality is so important; there are different ways to treat AV such as topical and systemic agents, laser, and also photodynamic therapy. In this study, we tried to assess the difference between the efficacy of combination therapy with intense pulsed light (IPL) and benzoyl peroxide (BPO) in comparison with IPL and adapalene (AD) in the treatment of the mild to moderate AV. Materials and Methods: Thirty Iranian females in reproductive age with mild to moderate acne were enrolled in this study. The left and right side of the patients were randomized to receive either AD 0.1% or BPO 5% every other day plus three sessions of monthly apart IPL in the treatment of AV. Different parameters of AV such as acne severity index (ASI), total acne lesions counting (TLC), and Acne Global Severity Scale (AGSS) were measured before, during, and after the treatments. Results: There was a significant difference regarding AGSS, TLC, and ASI before and after treatment with AD plus IPL (P < 0.001). Furthermore, there was a significant difference regarding AGSS, TLC, and ASI before and after treatment with BP plus IPL (P < 0.001). However, no significant difference regarding AGSS, TLC, and ASI were observed between the 2 groups after treatment (P > 0.05). No significant side effects were observed in both groups. Conclusion: Our study shows that there was not any significant difference between combining IPL with either AD or BPO so we can use either one of these combinations to achieve similar efficacy. In the experiment, the researchers used 6-(3-(Adamantan-1-yl)-4-methoxyphenyl)-2-naphthoic acid(cas: 106685-40-9Safety of 6-(3-(Adamantan-1-yl)-4-methoxyphenyl)-2-naphthoic acid)

6-(3-(Adamantan-1-yl)-4-methoxyphenyl)-2-naphthoic acid(cas:106685-40-9) may be used as a pharmaceutical reference standard for the quantification of the analyte in topical gel formulations using high-performance liquid chromatography technique.Safety of 6-(3-(Adamantan-1-yl)-4-methoxyphenyl)-2-naphthoic acid

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