Month: October 2022

《Additives Engineered Nonflammable Electrolyte for Safer Potassium Ion Batteries》 was written by Liu, Gang; Cao, Zhen; Zhou, Lin; Zhang, Jiao; Sun, Qujiang; Hwang, Jang-Yeon; Cavallo, Luigi; Wang, Limin; Sun, Yang-Kook; Ming, Jun. Formula: C3H2O3 And the article was included in Advanced Functional Materials in 2020. The article conveys some information:

Potassium ion batteries (KIBs) are attracting great attention as an alternative to lithium-ion batteries due to lower cost and better global sustainability of potassium. However, designing electrolytes compatible with the graphite anode and addressing the safety issue of highly active potassium remains challenging. Herein, a new concept of using additives to engineer non-flammable electrolytes for safer KIBs is introduced. It is discovered that the additives, such as the ethylene sulfate (i.e., DTD), can make the electrolyte of 1.0 M potassium bis(fluorosulfonyl) imide in tri-Me phosphate compatible with graphite anode for the first time, without the need of concentrated electrolyte strategies. A new coordination mechanism of additives in the electrolyte is presented. It is shown that the additive can change the K+ solvation structure and then determine the interfacial behaviors of K+-solvent on electrode interface, which are critical to affect the graphite performance (i.e., K+-solvent co-insertion, or K+ (de-)intercalation). Then, an extremely high potassium storage capability is obtained in graphite electrode for potassium (ion) batteries, particularly the presented high-performance graphite|K0.69CrO2 full battery fully demonstrates the practical application of this newly designed electrolyte. This additive-based strategy can offer more opportunities to tune the electrolyte properties and then serve for the more mobile ion battery system. In the experiment, the researchers used Vinylene carbonate(cas: 872-36-6Formula: C3H2O3)

Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Formula: C3H2O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

《Total Synthesis of (±)-Liphagal via Organic-Redox-Driven Palladium-Catalyzed Hydroxybenzofuran Formation》 was written by Tao, Eriko; Inoue, Masaki; Jeong, Taejoo; Kim, In Su; Yoshimitsu, Takehiko. COA of Formula: C8H14O4 And the article was included in Journal of Organic Chemistry in 2020. The article conveys some information:

A synthetic route to liphagal, a natural PI3Kα inhibitor isolated from Aka coralliphaga, was established. The present route features an organic redox process where an alkynylquinone undergoes reductive cyclization in the presence of a hydroquinone derivative such as hydroxyquinol (1,2,4-benzenetriol) and catalytic PdCl2 to provide a substituted benzofuran suitable for accessing the natural product. The benzofuran formation takes place via the redox transformation between the alkynylquinone and the electron-rich hydroquinones followed by the concomitant Pd(II)-catalyzed oxycyclization of the resultant alkynylhydroquinone. The experimental part of the paper was very detailed, including the reaction process of Diethyl 2-methylmalonate(cas: 609-08-5COA of Formula: C8H14O4)

Diethyl 2-methylmalonate(cas: 609-08-5) belongs to aliphatic hydrocarbons. Aliphatic hydrocarbons belong to the most abundant fraction in crude oil. Aliphatics molecules are linear or branched open-chain structures such as n-alkanes, isoalkanes, cycloalkanes (naphthenes), terpenes and steranes.COA of Formula: C8H14O4

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

《Thermoresponsive starch hydrogel stabilized Pd nanoparticles: Soft catalyst for the preparation of (±)-α-methylbiphenylalanine in water aiming at bioorthogonal chemistries》 was written by dos Santos, Raquel V.; Vitoi, Vitor Hugo M.; Costa, Marcio V.; da Silva, Lorenna C. L. L. F.; Archanjo, Braulio S.; Achete, Carlos A.; Silva, Raphael S. F.; Aguiar, Lucia C. S.; Malta, Luiz Fernando B.; Senra, Jaqueline D.. Category: esters-buliding-blocks And the article was included in Catalysis Letters in 2021. The article conveys some information:

The corn-starch was able to reduce Pd(II) species under relatively low concentration (5.0 wt/vol) leading to the formation of a thermoresponsive palladium nanoparticles-containing hydrogel with D = 16.1 nm ± 6.4 nm. It was successfully applied to the Suzuki-Miyaura reaction step in neat water involved in the synthesis of (±)-N-acetyl-α-methyl-4-biphenylalanine Et ester, a direct precursor of an unnatural quaternary biarylalanine. In the experiment, the researchers used Ethyl 2-methyl-3-oxobutanoate(cas: 609-14-3Category: esters-buliding-blocks)

Ethyl 2-methyl-3-oxobutanoate(cas: 609-14-3) belongs to ketone compounds. Ketones are highly reactive, although less so than aldehydes, to which they are closely related. Much of their chemical activity results from the nature of the carbonyl group. Ketones readily undergo a wide variety of chemical reactions.Category: esters-buliding-blocks

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Zhang, Fangcao; Gong, Mingliang; Xie, Hongzhen; Luo, Yunjie published their research in New Journal of Chemistry in 2021. The article was titled 《La(CH2C6H4NMe2-o)3-catalyzed reduction of esters to alcohols with pinacolborane》.Product Details of 403-33-8 The article contains the following contents:

La(CH2C6H4NMe2-o)3, a simple and facilely accessible lanthanide complex, can serve as a highly efficient catalyst for the reduction of esters e.g., Me 4-(trifluoromethyl)benzoate with pinacolborane (HBpin), selectively affording alcs. e.g., [4-(trifluoromethyl)phenyl]methanol in good yields under mild conditions. This protocol exhibits good tolerance for many functional groups such as C=C double bond, nitro, halogen, furyl, and thienyl groups. A lanthanum hydride species like [La]-H.HBpin is proposed to play a crucial role in promoting the interaction of esters with HBpin. In the experiment, the researchers used Methyl 4-fluorobenzoate(cas: 403-33-8Product Details of 403-33-8)

Methyl 4-fluorobenzoate(cas: 403-33-8) is an organic fluorinated building block used for the synthesis of various pharmaceutical compounds. It can be used for the preparation of Blonanserin.Product Details of 403-33-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Wang, Minlong; Du, Ying; Ling, Chen; Yang, Zhaokai; Jiang, Biaobiao; Duan, Hongxia; An, Jie; Li, Xinghai; Yang, Xinling published their research in Pest Management Science in 2021. The article was titled 《Design, synthesis and antifungal/anti-oomycete activity of pyrazolyl oxime ethers as novel potential succinate dehydrogenase inhibitors》.Electric Literature of C5H11NO3 The article contains the following contents:

Succinate dehydrogenase inhibitors (SDHIs) play an increasingly important role in controlling plant diseases. However, the similar structures of SDHIs result in rapid development of cross-resistance development and a clear bottleneck of poor activity against oomycetes, therefore the need to seek new SDHI fungicides with novel structures is urgent. Innovative pyrazolyl oxime ethers were designed by replacing amide with oxime ether based on the succinate dehydrogenase (SDH) structure, and 19 pairs of Z- and E-isomers were efficiently prepared for the discovery of SDHI compounds with a novel bridge. Their biol. activities against four fungi and two oomycetes were evaluated, and substantial differences were observed between the Z- and E- isomers of the title compounds Furthermore, most of these compounds exhibited remarkable activities against Rhizoctonia solani with EC50 values of less than 10 mg L-1 in vitro, and bioassay in vivo further confirmed that E-I-6 exhibited good protective efficacy (76.12%) at 200 mg L-1. In addition, Z-I-12 provided better activity against the oomycetes Pythium aphanidermatum and Phytophthora capsici (EC50 = 1.56 and 0.93 mg L-1) than those of boscalid. Moreover, E-I-12 exhibited excellent SDH inhibition (IC50 = 0.21 mg L-1) thanks to its good binding ability to the SDH by hydrogen-bonding interactions, π-cation interaction and hydrophobic interactions. Novel pyrazolyl oxime ethers have the potential as SDHI compounds for future development, and the strategy of replacing an amide bond with oxime ether may offer an alternative option in SDHI fungicide discovery. After reading the article, we found that the author used N-tert-Butoxycarbonylhydroxylamine(cas: 36016-38-3Electric Literature of C5H11NO3)

N-tert-Butoxycarbonylhydroxylamine(cas: 36016-38-3) belongs to anime. Amines can be classified according to the nature and number of substituents on nitrogen. Aliphatic amines contain only H and alkyl substituents. Aromatic amines have the nitrogen atom connected to an aromatic ring.Important amines include amino acids, biogenic amines, trimethylamine, and aniline. Inorganic derivatives of ammonia are also called amines, such as monochloramine (NClH2).Electric Literature of C5H11NO3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Zhang, Xueguo; Wang, Peigen; Zhu, Liangwei; Chen, Baohua published an article in 2021. The article was titled 《Rhodium(III)-catalyzed chemodivergent annulations between phenyloxazoles and diazos via C-H activation》, and you may find the article in Chinese Chemical Letters.Electric Literature of C7H12O3 The information in the text is summarized as follows:

Acid-controlled, chemodivergent and redox-neutral annulations for the synthesis of isocoumarins I (R = t-Bu, 4-bromophenyl, cyclohexyl, thiophen-2-yl, etc.; R1 = Me, Et, Ph; R2 = Me, Et, t-Bu) and isoquinolinones II (R3 = t-Bu, heptyl, furan-2-yl, etc.) have been realized via Rh(III)-catalyzed C-H activation. Diazo compounds R1C(O)C(=N2)C(O)OR2 act as a carbene precursor, and coupling occurs in one-pot process, where adipic acid and trimethylacetic acid promote chemodivergent cyclizations. In the experimental materials used by the author, we found Ethyl 3-oxopentanoate(cas: 4949-44-4Electric Literature of C7H12O3)

Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. They are most widely used as solvents, especially in industries manufacturing explosives, lacquers, paints, and textiles. Ketones are also used in tanning, as preservatives, and in hydraulic fluids.Electric Literature of C7H12O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Xiao, Jing; Guo, Fengzhe; Li, Yinfeng; Li, Fangshao; Li, Qiang; Tang, Zi-Long published an article in 2021. The article was titled 《Iodine Promoted Conversion of Esters to Nitriles and Ketones under Metal-Free Conditions》, and you may find the article in Journal of Organic Chemistry.Formula: C8H7FO2 The information in the text is summarized as follows:

In the present study, novel strategy to prepare valuable nitriles and ketones through the conversion of esters under metal-free conditions were reported. By using the I2/PCl3 system, various substrates including aliphatic and aromatic esters reacted with acetonitrile and arenes to afford the desired products in good to excellent yields. This method was compatible with a number of functional groups and provided a simple and practical approach for the synthesis of nitrile compounds and aryl ketones. The results came from multiple reactions, including the reaction of Methyl 4-fluorobenzoate(cas: 403-33-8Formula: C8H7FO2)

Methyl 4-fluorobenzoate(cas: 403-33-8) can be used in the synthesis of trisubstituted imidazole derivatives containing a 4-fluorophenyl group, a pyrimidine ring, and a CN- or CONH2-substituted benzyl moiety.Formula: C8H7FO2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Han, Xin; Zhao, Lijie; Xiang, Weiguo; Qin, Chong; Miao, Bukeyan; McEachern, Donna; Wang, Yu; Metwally, Hoda; Wang, Lu; Matvekas, Aleksas; Wen, Bo; Sun, Duxin; Wang, Shaomeng published an article in 2021. The article was titled 《Strategies toward Discovery of Potent and Orally Bioavailable Proteolysis Targeting Chimera Degraders of Androgen Receptor for the Treatment of Prostate Cancer》, and you may find the article in Journal of Medicinal Chemistry.Recommanded Product: Methyl 4-fluorobenzoate The information in the text is summarized as follows:

Proteolysis targeting chimera (PROTAC) small-mol. degraders have emerged as a promising new type of therapeutic agents, but the design of PROTAC degraders with excellent oral pharmacokinetics is a major challenge. In this study, we present our strategies toward the discovery of highly potent PROTAC degraders of androgen receptor (AR) with excellent oral pharmacokinetics. Employing thalidomide to recruit cereblon/cullin 4A E3 ligase and through the rigidification of the linker, we discovered highly potent AR degraders with good oral pharmacokinetic properties in mice with ARD-2128 (I) being the best compound ARD-2128 achieves 67% oral bioavailability in mice, effectively reduces AR protein and suppresses AR-regulated genes in tumor tissues with oral administration, leading to the effective inhibition of tumor growth in mice without signs of toxicity. This study supports the development of an orally active PROTAC AR degrader for the treatment of prostate cancer and provides insights and guidance into the design of orally active PROTAC degraders. In the experiment, the researchers used many compounds, for example, Methyl 4-fluorobenzoate(cas: 403-33-8Recommanded Product: Methyl 4-fluorobenzoate)

Methyl 4-fluorobenzoate(cas: 403-33-8) can be used in the synthesis of trisubstituted imidazole derivatives containing a 4-fluorophenyl group, a pyrimidine ring, and a CN- or CONH2-substituted benzyl moiety.Recommanded Product: Methyl 4-fluorobenzoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In 2022,Zare Davijani, Neda; Kia-Kojoori, Reza; Abdolmohammadi, Shahrzad; Sadegh-Samiei, Sepehr published an article in Molecular Diversity. The title of the article was 《Employing of Fe3O4/CuO/ZnO@MWCNT MNCs in the solvent-free synthesis of new cyanopyrroloazepine derivatives and investigation of biological activity》.Electric Literature of C5H6O2 The author mentioned the following in the article:

In this research, authors synthesized the Fe3O4/CuO/ZnO@MWCNT magnetic nanocomposites using water extract of Petasites hybridus rhizome, and the high performance of synthesized catalyst was confirmed by using in the solvent-free multicomponent reactions of isatoic anhydride, N-methylimidazole, alkyl bromides, activated acetylenic compounds and 2-aminoacetonitrile at ambient temperature for the production of new cyanopyrroloazepine derivatives in high yields. This catalyst could be used several times in these reactions and have main role in the yield of product. The synthesized cyanopyrroloazepines have NH groups in their structure and for this reason have good antioxidant activity. Also, employing Gram-pos. and Gram-neg. bacteria in the disk diffusion procedure confirmed some cyanopyrroloazepines antimicrobial effect. The results showed that synthesized cyanopyrroloazepine prevented the bacterial growth. This used process for preparation of new cyanopyrroloazepine has some improvements such as low reaction time, product with high yields, simple separation of catalyst and products. The experimental process involved the reaction of Ethyl propiolate(cas: 623-47-2Electric Literature of C5H6O2)

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Electric Literature of C5H6O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In 2022,Zhou, Yin; Gao, Cheng-Feng; Ma, Hai; Nie, Jing; Ma, Jun-An; Zhang, Fa-Guang published an article in Chemistry – An Asian Journal. The title of the article was 《Quadruple Functionalized Pyrazole Pharmacophores by One-pot Regioselective [3+2] Cycloaddition of Fluorinated Nitrile Imines and Dicyanoalkenes》.Formula: C4H5ClO3 The author mentioned the following in the article:

A quadruple functionalization approach for the modular construction of fully substituted N1-aryl 3-di/trifluoro-methyl-4/5-cyanopyrazole pharmacophores from readily available hydrazonyl chlorides and dicyanoalkenes was presented. The realization of this [3+2] cycloaddition reaction hinges upon the employment of N-aryl di/trifluoromethyl nitrile imines as the 1,3-dipoles to bypass external synthetic steps and dicyanoalkenes as the dipolarophiles to tune the regioselectivity. This one-pot strategy offered access to a divergent library of cyano analogs of prevalent 3-di/trifluoromethyl pyrazole pharmacophores, among which several compounds have shown potent inhibitory activity towards cyclooxygenase 2 (COX-2) compared with marketed drug Celecoxib. The experimental process involved the reaction of Ethyl oxalyl monochloride(cas: 4755-77-5Formula: C4H5ClO3)

Ethyl oxalyl monochloride(cas: 4755-77-5) belongs to acyl chlorides. In the laboratory, acyl chlorides are generally prepared by treating carboxylic acids with thionyl chloride (SOCl2). The reaction is catalyzed by dimethylformamide and other additives.Formula: C4H5ClO3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics