Month: December 2022

Dynamic analysis and decentralised control system design for diphenyl carbonate reactive distillation process was written by Bandsode, Shirish Prakash;Besta, Chandra Shekar. And the article was included in Indian Chemical Engineer in 2022.Synthetic Route of C13H10O3 The following contents are mentioned in the article:

Reactive distillation (RD), a process intensified technique, involves integrating reaction and separation in a single unit. High non-linearities associated with the RD process constrict the control degrees of freedom and set the key challenge in designing a robust control system. In the present work, the design is optimized for reactive distillation-diphenyl carbonate and a decentralised feedback control configuration is applied to carry out the control studies. A comparative decentralised control performance is studied for different transfer function models obtained by using anal. and optimization-based process identification techniques. The controller parameters obtained from the simple internal model control tuning relations are applied to (i) the linear transfer function model and (ii) non-linear plant model. Set-point tracking and load rejection studies are carried out to compare the performance of different models and investigate the non-linear model’s controller performance. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Synthetic Route of C13H10O3).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Synthetic Route of C13H10O3

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

ω-(5-Phenyl-2H-tetrazol-2-yl)alkyl-substituted hydrazides and related compounds as inhibitors of amine oxidase copper containing 3 (AOC3) was written by Galster, Florian;Postges, Timo;Hanekamp, Walburga;Lehr, Matthias. And the article was included in Archiv der Pharmazie (Weinheim, Germany) in 2022.Electric Literature of C13H10O3 The following contents are mentioned in the article:

Recently, 6-(5-phenyl-2H-tetrazol-2-yl)hexan-1-amine was found to be a tight-binding substrate of AOC3. To obtain novel inhibitors of the enzyme, the amino group of this substrate was replaced with functional groups that occur in known AOC3 inhibitors, such as hydrazide or glycine amide moieties. In addition, derivatives of the compounds I [R = NHNH₂, OEt, NH(CH₂)₂NH₂, NH(CH₂)₃NH₂, 3-(tert-butoxycarbonylamino)propylamino; n = 1, 2, 5, 6, etc.], II [R² = HNC(O)CH₂NH₂, HNC(O)OPh, 2-(aminomethyl)imidazol-1-yl, etc.] obtained in this way were prepared The obtained hydrazide I [R = NHNH₂; n = 6] which proved to be the most effective, was subjected to further structural modifications. Selected hydrazides I [R = NHNH₂; n = 1, 6] were evaluated for selectivity toward some other amine oxidases. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Electric Literature of C13H10O3).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Electric Literature of C13H10O3

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

Molecular Modeling of the HR2 and Transmembrane Domains of the SARS-CoV-2 S Protein in the Prefusion State was written by Bozdaganyan, M. E.;Orekhov, P. S.;Litvinov, D. S.;Novoseletsky, V. N.. And the article was included in Moscow University Biological Sciences Bulletin in 2021.Safety of (2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate The following contents are mentioned in the article:

SARS-CoV-2, the causative agent of COVID-19, remains the focus of research worldwide. SARS-CoV-2 entry into the cell starts with its S protein binding to the angiotensin-converting enzyme-2 (ACE2) expressed on the cell surface. The knowledge of the S protein’s spatial structure is indispensable for understanding the mol. principles of its work. The S protein structure has been almost fully described using exptl. approaches with the only exception for the protein’s endodomain, the transmembrane domain, and the ectodomain parts adjacent to the latter. The paper reports mol. modeling of the S protein fragment corresponding to its coiled coil HR2 domain and fully palmitoylated transmembrane domain. Model stability in lipid bilayer was confirmed by all-atom and coarse-grained mol. dynamics simulations. It has been demonstrated that palmitoylation leads to a significant decrease in transmembrane domain mobility and local bilayer thickening, which may be relevant for protein trimerization. This study involved multiple reactions and reactants, such as (2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate (cas: 26662-94-2Safety of (2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate).

(2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate (cas: 26662-94-2) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Safety of (2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate

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

Organoaluminum hydrides catalyzed hydroboration of carbonates, esters, carboxylic acids, and carbon dioxide was written by Yan, Ben;Dutta, Sayan;Ma, Xiaoli;Ni, Congjian;Koley, Debasis;Yang, Zhi;Roesky, Herbert W.. And the article was included in Dalton Transactions in 2022.Synthetic Route of C13H10O3 The following contents are mentioned in the article:

Reduction of carbonates, carboxylic acids and ester was achieved in reaction with HBpin and [(nacnac)AlH₂] catalyst. The reductive functionalization of the C:O unit of carbonates, carboxylic acids, esters, and CO₂, resp. has received great attention since its introduction. This method is often used industrially for the synthesis of high value-added energy products in chem. This opens up a new way forward to reduce greenhouse gases and the consumption of traditional energy sources. Herein, we report an earth-abundant, cheap, and readily available aluminum dihydride, which can catalyze the reduction of a range of carbonates, esters, carboxylic acids, and CO₂, resp. in the presence of pinacolborane as a reducing agent. Moreover, we demonstrate that the reaction can proceed to obtain good yield products under mild conditions, with low catalyst loading and solvent-free reactions. The mechanism of the catalytic reduction of carbonates has been investigated. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Synthetic Route of C13H10O3).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Synthetic Route of C13H10O3

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

Enzymatic synthesis of biodiesel from Jatropha tanjorensis Ellis and Saroja and its potential as biodiesel feedstock was written by Arun, K. P.;Ravichandran, N.;Devi, M. Nithya;Vajrai, R.;Brindha, P.. And the article was included in Asian Journal of Chemistry in 2016.Quality Control of 2-Ethylhexyl benzoate The following contents are mentioned in the article:

21St century has almost become “”reen century” with an increased demand for plant products (bioenergy-oil). Hence, to develop a natural biodiesel feedstock, common species of Jatropha in and around Thanjavur is selected based on its enriched monoalkyl ester content which could be a good source for generating biofuels. Tanjorensis seed oil were extracted and analyzed for its physico-chem. properties such as % free fatty acid, acid value iodine, peroxide, saponification values. P. aeruginosa crude lipase treated transesterification followed by GC-MS anal. of oil proved that oleic acid (37.3 %) and linoleic acid (33.3 %) were the principal fatty acids while palmitic acid and stearic acid being the major saturated fatty acids. Oil contents of Tanjorensis seed oil were comparable with the oil extracted from other species of Jatropha and were found to be close to oil from Jatropha curcas. Tanjorensis seed oil extracts could be useful in industrial applications and as a biodiesel feedstock. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Quality Control of 2-Ethylhexyl benzoate).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Quality Control of 2-Ethylhexyl benzoate

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

Insights into profiling of volatile ester and LOX-pathway related gene families accompanying post-harvest ripening of Nanguo pears was written by Luo, Manli;Zhou, Xin;Sun, Huajun;Zhou, Qian;Ge, Wanying;Sun, Yangyang;Yao, Miaomiao;Ji, Shujuan. And the article was included in Food Chemistry in 2021.Computed Properties of C10H20O2 The following contents are mentioned in the article:

Nanguo pear is particularly renowned for its fragrance. Esters are the main components of its aroma, which are synthesized primarily by the LOX pathway. We identified the main volatile esters and critical gene family members involved in the LOX pathway by monitoring their variation accompanying post-harvest ripening and examining their roles through principal component anal. (PCA), partial least-square regression (PLSR), and correlation anal. In pears ripening to the optimum taste period (OTP), components and contents of volatile esters reached a peak, of which Et butanoate, Et hexanoate, and hexyl acetate were most prominent. Linoleic acid and linolenic acid contents rose greatly until OTP and then declined; the activities of LOX, alc. dehydrogenase (ADH), and alc. acyltransferase (AAT) increased progressively until the OTP. Among the genes involved in LOX-pathway, the expressions of PuLOX3, PuADH3, and PuAAT contributed most to changes of total ester and main esters in Nanguo pears. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Computed Properties of C10H20O2).

Octyl acetate (cas: 112-14-1) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Computed Properties of C10H20O2

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

A β-cyclodextrin covalent organic framework used as a chiral stationary phase for chiral separation in gas chromatography was written by Tang, Bo;Wang, Wei;Hou, Huipeng;Liu, Yiquan;Liu, Zongkun;Geng, Lina;Sun, Liquan;Luo, Aiqin. And the article was included in Chinese Chemical Letters in 2022.Recommanded Product: Methyl heptanoate The following contents are mentioned in the article:

Chiral covalent organic frameworks (CCOFs) featuring chirality, stability, and good porosity have attracted a considerable amount of attention due to their important applications, such as asym. catalysis, chiral separation, and chiral recognition. In this study, a β-cyclodextrin (β-CD) covalent organic framework (β-CD-COF) diluted with polysiloxane OV-1701 was explored as a novel chiral stationary phase (CSP) for gas chromatog. (GC) separation of racemates. The β-CD-COF coated capillary column had excellent selectivity, not only for the separation of linear alkanes, linear alcs., fatty acid Me esters mixture, the Grob mixture and positional isomers, but also for the resolution of chiral compounds, including chiral alcs., aldehydes, ethers, and amino acid derivatives In addition, the β-CD-COF-coated capillary column presented good repeatability and reproducibility. This work indicated the great potential of the CCOFs coated capillary column for the chromatog. separation of enantiomers. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Recommanded Product: Methyl heptanoate).

Methyl heptanoate (cas: 106-73-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Recommanded Product: Methyl heptanoate

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

Multicolor and multistage response electrochromic color-memory wearable smart textile and flexible display was written by Wang, Chengcheng;Jiang, Xiaojun;Cui, Peng;Sheng, Mingfei;Gong, Xiaodan;Zhang, Liping;Fu, Shaohai. And the article was included in ACS Applied Materials & Interfaces in 2021.Recommanded Product: Diphenyl carbonate The following contents are mentioned in the article:

Electrochromic materials have great application in soft displays and devices, but the application of ideal electrochromic textiles still faces challenges owing to the inconvenience of a continuous power supply. Here, electrochromic color-memory microcapsules (ECM-Ms-red, -yellow, and -blue) with a low drive voltage (2.0 V), coloration efficiency (921.6 cm² C^-1), a practical response rate (34.4 s^-1), multistage response discoloration, and good color-memory performance (>72 h) and reversibility (≥1000 cycles) are developed. The color-memory performance is controlled by the energy difference of oxidation-reduction reactions. A multicolor and multistage response electrochromic color-memory wearable smart textile and flexible display are developed that are convenient and energy-efficient for application. The design philosophy of color-memory based on controllable energy difference of reactions has great potential application in sensors and smart textiles. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Recommanded Product: Diphenyl carbonate).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: Diphenyl carbonate

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

Reactivity-Stereoselectivity Mapping for the Assembly of Mycobacterium marinum Lipooligosaccharides was written by Hansen, Thomas;Ofman, Tim P.;Vlaming, Joey G. C.;Gagarinov, Ivan A.;van Beek, Jessey;Gote, Tessa A.;Tichem, Jacoba M.;Ruijgrok, Gijs;Overkleeft, Herman S.;Filippov, Dmitri V.;van der Marel, Gijsbert A.;Codee, Jeroen D. C.. And the article was included in Angewandte Chemie, International Edition in 2021.Safety of (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate The following contents are mentioned in the article:

The assembly of complex bacterial glycans presenting rare structural motifs and cis-glycosidic linkages is significantly obstructed by the lack of knowledge of the reactivity of the constituting building blocks and the stereoselectivity of the reactions in which they partake. We here report a strategy to map the reactivity of carbohydrate building blocks and apply it to understand the reactivity of the bacterial sugar, caryophyllose, a rare C₁2-monosaccharide, containing a characteristic tetra-substituted stereo-center. We mapped reactivity-stereoselectivity relationships for caryophyllose donor and acceptor glycosides by a systematic series of glycosylations in combination with the detection and characterization of different reactive intermediates using exptl. and computational techniques. The insights garnered from these studies enabled the rational design of building blocks with the required properties to assemble mycobacterial lipooligosaccharide fragments of M. marinum. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3Safety of (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Safety of (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate

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

Characterization of the aromatic profile of purple passion fruit (Passiflora edulis Sims) during ripening by HS-SPME-GC/MS and RNA sequencing was written by Li, Changbao;Xin, Ming;Li, Li;He, Xuemei;Yi, Ping;Tang, Yayuan;Li, Jiemin;Zheng, Fengjin;Liu, Guoming;Sheng, Jinfeng;Li, Zhichun;Jian, sun. And the article was included in Food Chemistry in 2021.Application In Synthesis of Isopentyl hexanoate The following contents are mentioned in the article:

Passion fruit is a tropical liana of the Passiflora family that is commonly consumed throughout the world due to its attractive aroma and flavor. However, very limited information is available on the mechanism of aroma formation and composition of the passion fruit during ripening. Therefore, HS-SPME-GC/MS combined with transcriptome anal. was used to study the mechanism of aroma formation during passion fruit ripening. The profile analyzed included 148 volatile organic compounds (VOCs) and related differentially expressed genes (DEGs). Compared with SA, 85 VOCs and related DEGs were identified as significantly upregulated at the SB and SC stages, including esters, alcs., ketones, hydrocarbons, alkanes, and aldehydes. Two main pathways, ester and amino acid metabolism, and related genes were analyzed with VOC biosynthesis in passion fruit. This study is the first anal. of passion fruit VOC formation and provides new insights into the flavor mechanism and quality breeding of passion fruit. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0Application In Synthesis of Isopentyl hexanoate).

Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Application In Synthesis of Isopentyl hexanoate

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