Month: December 2021

I found the field of Chemistry very interesting. Saw the article Facile Synthesis of Iron-Titanate Nanocomposite as a Sustainable Material for Selective Amination of Substitued Nitro-Arenes published in 2020. Recommanded Product: 99-27-4, Reprint Addresses Sharif, M (corresponding author), King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia.. The CAS is 99-27-4. Through research, I have a further understanding and discovery of Dimethyl 5-aminoisophthalate

The fabrication of durable and low-cost nanostructured materials remains important in chemical, biologic and medicinal applications. Particularly, iron-based nanomaterials are of central importance due to the ‘noble’ features of iron such as its high abundance, low cost and non-toxicity. Herein we report a simple sol-gel method for the synthesis of novel iron-titanium nanocomposite-based material (Fe9TiO15@TiO2). In order to prepare this material, we made a polymeric gel using ferrocene, titanium isopropoxide and THF precursors. The calcination of this gel in air at 500 degrees C produced Fe-Ti bimetallic nanoparticles-based composite and nano-TiO(2)as support. Noteworthy, our methodology provides an excellent control over composition, size and shape of the resulting nanoparticles. The resulted Fe-based material provides a sustainable catalyst for selective synthesis of anilines, which are key intermediates for the synthesis of several chemicals, dyes and materials, via reduction of structurally diverse and functionalized nitroarenes.

Welcome to talk about 99-27-4, If you have any questions, you can contact Sohail, M; Tahir, N; Rubab, A; Beller, M; Sharif, M or send Email.. Recommanded Product: 99-27-4

Reference:
Patent; ASTRA ZENECA AB; NPS PHARMACEUTICALS, INC.; WO2004/14881; (2004); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Category: esters-buliding-blocks. I found the field of Chemistry; Physics very interesting. Saw the article In situ preparation of palladium nanoparticles in ionic liquid crystal microemulsion and their application in Heck reaction published in 2020.0, Reprint Addresses Umadevi, S (corresponding author), Alagappa Univ, Dept Ind Chem, Karaikkudi 630003, Tamil Nadu, India.. The CAS is 103-26-4. Through research, I have a further understanding and discovery of Methyl 3-phenyl-2-propenoate.

A simple and an efficient approach for in situ preparation of palladium nanoparticles (Pd NPs) in ionic liquid crystal (ILC) microemulsion is described. Microemulsion was formed by using a ternary mixture of triton X-100/ILC/water (in the ratio of 1.4:0.1:8.5). Three such microemulsions-1, 2 and 3 were formed by using three different ILCs namely ammonium ILC containing a cholesterol core (ILC-1), imidazolium ILC bearing a cholesterol core (ILC-2) and imidazolium ILC containing a biphenyl core (ILC-3), respectively. The Pd NPs were characterised using UV-vis spectroscopy, transmission electron microscopy and X-ray diffraction studies. Among the three, microemulsion-2 which was prepared using ILC-2 yielded stable NPs with an average particle size of similar to 20 nm. The NPs prepared in all three emulsions were examined as catalyst for Heck reaction. The catalytic efficiency was analysed for four cross-coupling reactions involving iodobenzene with different substituted alkenes namely methyl acrylate, ethyl acrylate, butyl acrylate and styrene. The coupling reactions were completed in a shorter period with good yields. Further, the recyclability test of Pd NPs revealed that the particles showed good activity until third catalytic cycle. The Pd NPs prepared in microemulsion-2 showed better activity compared to those prepared in microemulsions-1 and -3. (C) 2020 Elsevier B.V. All rights reserved.

Category: esters-buliding-blocks. Bye, fridends, I hope you can learn more about C10H10O2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

I found the field of Chemistry very interesting. Saw the article alpha-Branched Ketone Dienolates: Base-Catalysed Generation and Regio- and Enantioselective Addition Reactions published in 2019. Safety of Dimethyl 5-aminoisophthalate, Reprint Addresses Oiarbide, M; Palomo, C (corresponding author), Univ Pais Vasco UPV EHU, Dept Quim Organ 1, Manuel Lardizabal 3, San Sebastian 20018, Spain.. The CAS is 99-27-4. Through research, I have a further understanding and discovery of Dimethyl 5-aminoisophthalate

In this study, the unique capacity of bifunctional BrOnsted bases to generate alpha-branched ketone dienolates and control both site- and stereoselectivity of their addition reactions to representative classes of carbon electrophiles (i.e., vinyl sulfones, nitroolefins, formaldehyde) is documented. We demonstrate that by using selected chiral tertiary amine/squaramide catalysts, the reactions of beta,gamma-unsaturated cycloalkanones proceed through the dienolate C alpha almost exclusively and provide all-carbon quaternary cyclic ketone adducts in good yields with very high enantioselectivities. A minor amount (<5%) of gamma-addition is observed when nitroolefins are used as electrophiles. The parent acyclic ketone dienolates proved to be less reactive under these conditions, and thus still constitute a challenging class of substrates. Quantum chemical calculations correctly predict these differences in reactivity and explain the observed site-specificity and enantioselectivity. Bye, fridends, I hope you can learn more about C10H11NO4, If you have any questions, you can browse other blog as well. See you lster.. Safety of Dimethyl 5-aminoisophthalate

Reference:
Patent; ASTRA ZENECA AB; NPS PHARMACEUTICALS, INC.; WO2004/14881; (2004); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

SDS of cas: 103-26-4. In 2020.0 J AM CHEM SOC published article about BOND ACTIVATION; II REACTIONS; CLEAVAGE; ALPHA; INDOLIZIDINE; ALKALOIDS; MOLECULES; ARYLATION; STRATEGY; HYDROGEN in [Yeung, Charles S.] Merck & Co Inc, Dept Discovery Chem, Boston, MA 02115 USA; [Park, Bohyun; Son, Mina; Baik, Mu-Hyun] Inst Basic Sci IBS, Ctr Catalyt Hydrocarbon Functionalizat, Daejeon 34141, South Korea; [Park, Bohyun; Son, Mina; Baik, Mu-Hyun] Korea Adv Inst Sci & Technol KAIST, Dept Chem, Daejeon 34141, South Korea; [Ham, Jin Su; Roque, Jose B.; Jurczyk, Justin; Sarpong, Richmond] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA in 2020.0, Cited 47.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4.

Herein we report the synthesis of substituted indolizidines and related N-fused bicycles from simple saturated cyclic amines through sequential C-H and C-C bond functionalizations. Inspired by the Norrish-Yang Type II reaction, C-H functionalization of azacycles is achieved by forming alpha-hydroxy-beta-lactams from precursor alpha-ketoamide derivatives under mild, visible light conditions. Selective cleavage of the distal C(sp(2))-C(sp(3)) bond in alpha-hydroxy-beta-lactams using a Rh-complex leads to alpha-acyl intermediates which undergo sequential Rh-catalyzed decarbonylation, 1,4-addition to an electrophile, and aldol cyclization, to afford N-fused bicycles including indolizidines. Computational studies provide mechanistic insight into the observed positional selectivity of C-C cleavage, which depends strongly on the groups bound to Rh trans to the phosphine ligand.

SDS of cas: 103-26-4. Bye, fridends, I hope you can learn more about C10H10O2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Application In Synthesis of Methyl 3-phenylpropionate. In 2020.0 SCI CHINA CHEM published article about CROSS-COUPLINGS; ENANTIOSELECTIVE ADDITION; ESTERIFICATION; ACTIVATION; CONVERSION; REAGENTS; ALKENES in [Chen, Hang; Chen, Dong-Huang; Huang, Pei-Qiang] Xiamen Univ, Coll Chem & Chem Engn, Collaborat Innovat Ctr Chem Ene Mat, Dept Chem,Fujian Prov Key Lab Chem Biol, Xiamen 361005, Peoples R China in 2020.0, Cited 50.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3.

N-Acylpyrrole-type amides are a class of versatile building blocks in asymmetric synthesis. We report that by employing Ni(COD)(2)/2,2 ‘-bipyridine (5 mol%) catalytic system, the direct, catalytic alcoholysis of N-acylpyrrole-type aromatic and aliphatic amides with both primary and secondary alcohols can be achieved efficiently under very mild conditions (rt, 1 h) even at gram scale. By increasing the catalyst loading to 10 mol%, prolonging reaction time (18 h), and/or elevating reaction temperature to 50 degrees C/80 degrees C, the reaction could be extended to both complex and hindered N-acylpyrroles as well as to N-acylpyrazoles, Nacylindoles, and to other (functionalized) primary and secondary alcohols. In all cases, only 1.5 equiv. of alcohol were used. The value of the method has been demonstrated by the racemization-free, catalytic alcoholysis of chiral amides yielded from other asymmetric methodologies.

Application In Synthesis of Methyl 3-phenylpropionate. Bye, fridends, I hope you can learn more about C10H12O2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

HPLC of Formula: C10H11NO4. Recently I am researching about CHEMICAL-COMPOSITION; PHYSICAL-PROPERTIES; DUCK EGG; BIO-OIL; MICROSTRUCTURE; MEAT; SPECTROSCOPY; TEMPERATURE; EXTRACTION; VOLATILES, Saw an article supported by the Special Fund for the Modern Agro-Industry Technology Research System [CARS-40-K24]. Published in ELSEVIER SCI LTD in OXFORD ,Authors: Xiang, XL; Liu, YY; Liu, Y; Wang, XY; Jin, YG. The CAS is 99-27-4. Through research, I have a further understanding and discovery of Dimethyl 5-aminoisophthalate

Lipid migration is widespread in food system and has an important effect on food quality. It is urgent to explore the lipid migration in egg yolk after heating. The content of lipids in upper part (HL) was higher than that in bottom part (LL), and the lipids migration in yolk gel under heating were confirmed by MRI (T1) and T2 relaxation time of LF-NMR. Subsequently, the XDR result demonstrated the high lipid content induced the decrease in crystallinity of protein in HL part. The structures of HL part trend to be more ordered, stable (beta-sheet & beta-turns) and flat (alpha-helices) than LL part, also, more water distributed in LL part were observed by FTIR spectrum. The SEM results revealed that lipids migrated from LL to HL part, eventually lead to the protein in HL part of heated yolk gel unfold, the globular structure collapsed and become flatter. Morever, ethyl acetate, hexanal, etc. and hexanal, ethyl acetate, dimethyl-silanediol, etc. were identified as the main VOCs of LL and HL part of heated yolk gel, respectively. Lipid migration result in more lipid-specific volatiles were formed in the HL part, such as hexanal, 3-hydroxy-cyclohexanone, 2-pentyl-furan, D-limonene, 2-ethyl-1-hexanol, benzeneacetaldehyde. Lipid migration in heated yolk gel, caused by heat treatment, resulted in the changes of structure and flavor between HL and LL part.

Bye, fridends, I hope you can learn more about C10H11NO4, If you have any questions, you can browse other blog as well. See you lster.. HPLC of Formula: C10H11NO4

Reference:
Patent; ASTRA ZENECA AB; NPS PHARMACEUTICALS, INC.; WO2004/14881; (2004); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article Volatome finger printing of red wines made from grapes grown under tropical conditions of India using thermal-desorption gas chromatography-mass spectrometry (TD-GC/MS) WOS:000495355600002 published article about VOLATILE COMPOUNDS; CABERNET-SAUVIGNON; YOUNG WINES; QUANTITATIVE-ANALYSIS; IMPACT ODORANTS; AROMA; COMPONENTS; QUANTIFICATION; IDENTIFICATION; EXTRACTION in [Somkuwar, R. G.; Sharma, A. K.; Kambale, Narayan; Banerjee, Kaushik; Bhange, M. A.; Oulkar, D. P.] ICAR Natl Res Ctr Grapes, Pune 412307, Maharashtra, India in 2020, Cited 37. The Name is Methyl 2,2-dimethoxyacetate. Through research, I have a further understanding and discovery of 89-91-8. Computed Properties of C5H10O4

The current study evaluated the key characters of aroma composition in diversified red wines (Cinsaut, Grenache, Cabernet Franc, Petit Verdot, Cabernet Sauvignon, Nielluccio, Tempranillo, Syrah, Merlot and Caladoc). Out of hundreds of volatile compounds 64 compounds were considered for study. Different groups consisting of fatty acids, volatile alcohols, aldehydes, esters, volatile phenols and terpenes were analysed using gas chromatography mass spectrometry coupled with thermal desorption (TD-GC-MS). Among all these diversified classes, alcohols were found as the most dominant group followed by esters and acids whereas aldehydes, phenols and terpenes were found to be minor compounds. Among the varieties, Nielluccio wine recorded highest concentration of total volatile compounds (191.53 mg/L) while, it was least in Caladoc wines (15.45 mg/L). The principal component analysis clearly differentiated Grenache wines based on their relationships between scores and their aroma composition followed by Nielluccio and Cinsuat wines. Out of sixty four compounds, only six aromatic compounds viz. butanediol, isoamyl actate, gamma-Terpene, butanol, acetic acid and furfural have satisfying aroma descriptors with floral and fruity nuances and contribute to differentiate the Grenache wines from other varieties which have similar scores in PC1 analysis. The cluster analysis also suggested that the wines in the same group (Cinsaut, Tempranillo and Syrah), (Cabernet Franc, Cabernet Sauvignon, Caladoc and Merlot) and (Nielluccio and Petit Verdot) had similar aroma characterization. Grenache wines were well differentiated from the sub group formed by other red varieties.

Welcome to talk about 89-91-8, If you have any questions, you can contact Somkuwar, RG; Sharma, AK; Kambale, N; Banerjee, K; Bhange, MA; Oulkar, DP or send Email.. Computed Properties of C5H10O4

Reference:
Patent; U C B, Societe Anonyme; US4041077; (1977); A;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Recently I am researching about CHARGE-TRANSFER; ORGANIC COCRYSTALS; MOLECULAR-COMPLEX; DESIGN; ANTHRACENE; PYRENE; WILL, Saw an article supported by the Engineering and Physical Sciences Research Council (EPSRC)UK Research & Innovation (UKRI)Engineering & Physical Sciences Research Council (EPSRC) [EP/S026339/1]; EPSRCUK Research & Innovation (UKRI)Engineering & Physical Sciences Research Council (EPSRC) [EP/R018472/1]; Leverhulme TrustLeverhulme Trust; Leverhulme Research Centre for Functional Materials Design via the Leverhulme Research Centre for Functional Materials Design [RC-2015-036]; Cambridge Crystallographic Data Centre. Recommanded Product: 2005-10-9. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Vriza, A; Canaj, AB; Vismara, R; Cook, LJK; Manning, TD; Gaultois, MW; Wood, PA; Kurlin, V; Berry, N; Dyer, MS; Rosseinsky, MJ. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one

The implementation of machine learning models has brought major changes in the decision-making process for materials design. One matter of concern for the data-driven approaches is the lack of negative data from unsuccessful synthetic attempts, which might generate inherently imbalanced datasets. We propose the application of the one-class classification methodology as an effective tool for tackling these limitations on the materials design problems. This is a concept of learning based only on a well-defined class without counter examples. An extensive study on the different one-class classification algorithms is performed until the most appropriate workflow is identified for guiding the discovery of emerging materials belonging to a relatively small class, that being the weakly bound polyaromatic hydrocarbon co-crystals. The two-step approach presented in this study first trains the model using all the known molecular combinations that form this class of co-crystals extracted from the Cambridge Structural Database (1722 molecular combinations), followed by scoring possible yet unknown pairs from the ZINC15 database (21 736 possible molecular combinations). Focusing on the highest-ranking pairs predicted to have higher probability of forming co-crystals, materials discovery can be accelerated by reducing the vast molecular space and directing the synthetic efforts of chemists. Further on, using interpretability techniques a more detailed understanding of the molecular properties causing co-crystallization is sought after. The applicability of the current methodology is demonstrated with the discovery of two novel co-crystals, namely pyrene-6H-benzo[c]chromen-6-one (1) and pyrene-9,10-dicyanoanthracene (2).

Welcome to talk about 2005-10-9, If you have any questions, you can contact Vriza, A; Canaj, AB; Vismara, R; Cook, LJK; Manning, TD; Gaultois, MW; Wood, PA; Kurlin, V; Berry, N; Dyer, MS; Rosseinsky, MJ or send Email.. Recommanded Product: 2005-10-9

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Application In Synthesis of Methyl 3-phenyl-2-propenoate. I found the field of Science & Technology – Other Topics very interesting. Saw the article In-depth phenolic characterization of iron gall inks by deconstructing representative Iberian recipes published in 2021.0, Reprint Addresses Teixeira, N (corresponding author), Univ Porto, Fac Sci, Dept Chem & Biochem, LAQV REQUIMTE, Rua Campo Alegre S-N, P-4169007 Porto, Portugal.; Melo, MJ (corresponding author), Nova Sch Sci & Technol, Dept Conservat & Restorat, LAQV REQUIMTE, P-2829516 Monte De Caparica, Portugal.. The CAS is 103-26-4. Through research, I have a further understanding and discovery of Methyl 3-phenyl-2-propenoate.

Iron-gall ink is one of the most important inks in the history of western civilization. The deep black colour results from Fe3+ complexes with phenolic compounds available in gall extracts. Unfortunately, it induces the degradation of both ink and support over time. Furthermore, our knowledge of these complex molecular structures is limited. This work aims to overcome this gap, revealing essential information about the complex structures of these pigments and dyes that will create a breakthrough in the next generation of conservation treatments. It presents the first in-depth phenolic identification and quantification of extracts and inks, prepared with and without gum arabic (an essential additive in medieval recipes). Five representative Iberian recipes were selected and prepared. Their phenolic profile was analysed by HPLC-DAD and HPLC-ESI-MS, which revealed that the phenolic compounds present in higher concentration, in the gall extracts, are pentagalloylglucose and hexagalloylglucose (0.15 +/- 0.01-32 +/- 3 mg/mL), except for one recipe, in which gallic acid is the main phenolic. The influence of the ingredients is also discussed by deconstructing the recipes: extracts of additives as pomegranate peel and solvents used in the extraction of the galls (vinegar and white wine) were characterized.

Application In Synthesis of Methyl 3-phenyl-2-propenoate. Welcome to talk about 103-26-4, If you have any questions, you can contact Teixeira, N; Nabais, P; de Freitas, V; Lopes, JA; Melo, MJ or send Email.

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Quality Control of 6H-Benzo[c]chromen-6-one. In 2019.0 MOLECULES published article about THERMAL-ENERGY STORAGE; ACID in [Ravotti, Rebecca; Fellmann, Oliver; Lardon, Nicolas; Fischer, Ludger J.; Stamatiou, Anastasia; Worlitschek, Joerg] Lucerne Univ Appl Sci & Arts, Competence Ctr Thermal Energy Storage TES, CH-6048 Horw, Switzerland; [Lardon, Nicolas] Max Planck Inst Med Res, D-69120 Heidelberg, Germany in 2019.0, Cited 25.0. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9.

In the presented work, five bio-based and bio-degradable cyclic esters, i.e. lactones, have been investigated as possible phase change materials for applications in latent heat storage systems. Commercial natural lactones such as epsilon-caprolactone and gamma-valerolactone were easily purchased through chemical suppliers, while 1,2-campholide, oxa-adamantanone and dibenzochromen-6-one were synthesized through Baeyer-Villiger oxidation. The compounds were characterized with respect to attenuated total reflectance spectroscopy and gas chromatography coupled with mass spectroscopy, in order to confirm their chemical structures and identity. Subsequently, thermogravimetric analysis and differential scanning calorimetry were used to measure the phase change temperatures, enthalpies of fusion, degradation temperatures, as well to estimate the degree of supercooling. The lactones showed a wide range of phase change temperatures from -40 degrees C to 290 degrees C, making them a high interest for both low and high temperature latent heat storage applications, given the lack of organic phase change materials covering phase change temperature ranges below 0 degrees C and above 80 degrees C. However, low enthalpies of fusion, high degrees of supercooling and thermal degradations at low temperatures were registered for all samples, rendering them unsuitable as phase change materials.

Bye, fridends, I hope you can learn more about C13H8O2, If you have any questions, you can browse other blog as well. See you lster.. Quality Control of 6H-Benzo[c]chromen-6-one

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics