Month: September 2021

An article Celite-Polyaniline supported palladium catalyst for chemoselective hydrogenation reactions WOS:000464452800023 published article about SELECTIVE HYDROGENATION; HETEROGENEOUS CATALYST; PD NANOPARTICLES; FACILE SYNTHESIS; N-ALKYLATION; REDUCTION; ACID; EFFICIENT; SUZUKI; OXIDATION in [Patel, Heta A.; Rawat, Maitreyee; Patel, Arun L.; Bedekar, Ashutosh V.] Maharaja Sayajirao Univ Baroda, Fac Sci, Dept Chem, Vadodara 390002, India in 2019.0, Cited 110.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3. SDS of cas: 103-25-3

Polyaniline coated on particles of celite is used as support to load palladium catalyst. This heterogenized Celite center dot PANI center dot Pd system, is used as an efficient catalyst for chemoselective hydrogenation reactions. The catalyst is characterized by usual spectral, analytical techniques and studied for hydrogenation reactions at ambient conditions. The mild reaction conditions allow the control over the reactions and excellent selectivity is achieved in number of conversions. Hydrogenation of a carbon-carbon double bond was favored over other polar pi-bond systems, while labile functional groups such as benzyl ether, benzyl esters, cyano, nitro and halogen remained unaffected. Primary amines were converted to N,N-dimethyl amines with formaldehyde, the double bond of coumarin was selectively hydrogenated without opening of the lactone functionality.

About Methyl 3-phenylpropionate, If you have any questions, you can contact Patel, HA; Rawat, M; Patel, AL; Bedekar, AV or concate me.. SDS of cas: 103-25-3

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

An article CuO-catalyzed oxidation of aryl acetates with aqueous tert-butyl hydroperoxide for the synthesis of alpha-ketoesters WOS:000484663600003 published article about KETO ESTERS; ALKYLBENZENES; KETOAMIDES in [Jiang, Jin] Sichuan Univ Sci & Engn, Sch Chem & Environm Engn, Zigong 643000, Peoples R China in 2019.0, Cited 21.0. Formula: C10H12O2. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3

A practical method to access alpha-ketoesters from readily available aryl acetates is developed. In this approach, aqueous tert-butyl hydroperoxide and CuO are employed. No additional solvents are required and it was found that the peroxide side products in the reaction can be decomposed by pyridine.

Formula: C10H12O2. About Methyl 3-phenylpropionate, If you have any questions, you can contact Jiang, J or concate me.

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

Name: 6H-Benzo[c]chromen-6-one. Recently I am researching about REDIRECTING SECONDARY BONDS; DIARYLIODONIUM SALTS; ALPHA-TOSYLOXYLATION; HYPERVALENT; IODINE(III); REACTIVITY; REAGENTS; OXO, Saw an article supported by the Fonds der Chemischen IndustrieFonds der Chemischen IndustrieEuropean Commission. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Boelke, A; Sadat, S; Lork, E; Nachtsheim, BJ. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one

Bis-N-heterocycle-stabilized lambda(3)-iodanes (BNHIs) based on azoles are introduced as novel structural motifs in hypervalent iodine chemistry. A performance test in a variety of benchmark reactions including sulfoxidations and phenol dearomatizations revealed a bis-N-bound pyrazole substituted BNHI as the most reactive derivative. Its solid-state structure was characterized via X-ray analysis implying strong intramolecular interactions between the pyrazole nitrogen atoms and the hypervalent iodine centre.

Name: 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Boelke, A; Sadat, S; Lork, E; Nachtsheim, BJ or concate me.

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

An article Diversion of the Arbuzov reaction: alkylation of C-Cl instead of phosphonic ester formation on the fullerene cage WOS:000477986000022 published article about CHLOROFULLERENE C60CL6; DERIVATIVES; VIRUS; FUNCTIONALIZATION; INHIBITION; CHEMISTRY; BIOLOGY; C-60; 1ST in [Kraevaya, Ol’ga A.; Troshin, Pavel A.] Skolkovo Inst Sci & Technol, Nobel St 3, Moscow 143026, Russia; [Kraevaya, Ol’ga A.; Martynenko, Vyacheslav M.; Shestakov, Alexander F.; Troshin, Pavel A.] RAS, IPCP, Semenov Prospect 1, Chernogolovka 141432, Russia; [Peregudov, Alexander S.; Godovikov, Ivan] RAS, INEOS, Vavylova St 28,B-334, Moscow 119991, Russia; [Troyanov, Sergey I.] Moscow Lomonosov State Univ, Dept Chem, Moscow, Russia; [Fedorova, Natalya E.; Klimova, Regina R.; Kushch, Alla A.] Minist Hlth Russian Federat, Honored Academcian NF Gamaleya Natl Res Ctr Epide, Gamaleya St 18, Moscow 123098, Russia; [Sergeeva, Vasilina A.; Kameneva, Larisa V.; Ershova, Elizaveta S.; Kostyuk, Svetlana V.] RAMS, Res Ctr Med Genet, Moskvoreche St 1, Moscow 115478, Russia; [Claes, Sandra; Schols, Dominique] Katholieke Univ Leuven, Rega Inst Med Res, Herestr 49, B-3000 Leuven, Belgium; [Shestakov, Alexander F.] Moscow Lomonosov State Univ, Fac Fundamental Phys & Chem Engn, GSP 1,1-51 Leninskie Gory, Moscow 119991, Russia in 2019.0, Cited 43.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3. COA of Formula: C10H12O2

We report an inversed Arbuzov reaction of the fullerene derivatives C60Ar5Cl with trialkyl phosphites P(OR)(3) producing alkylated fullerene derivatives C60Ar5R (R = Me, Et, iPr, nBu) with almost quantitative yields. This reaction provides a convenient synthetic route for the preparation of a large variety of functionalized fullerene derivatives with tailored properties, e.g. water-soluble compounds demonstrating promising antiviral activities against HCMV, HSV1, HIV and several influenza virus strains.

COA of Formula: C10H12O2. About Methyl 3-phenylpropionate, If you have any questions, you can contact Kraevaya, OA; Peregudov, AS; Troyanov, SI; Godovikov, I; Fedorova, NE; Klimova, RR; Sergeeva, VA; Kameneva, LV; Ershova, ES; Martynenko, VM; Claes, S; Kushch, AA; Kostyuk, SV; Schols, D; Shestakov, AF; Troshin, PA or concate me.

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

I found the field of Chemistry; Energy & Fuels; Engineering very interesting. Saw the article Comprehensive insights into xylan structure evolution via multi-perspective analysis during slow pyrolysis process published in 2019. Computed Properties of C5H10O4, Reprint Addresses Wu, SB (corresponding author), South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China.. The CAS is 89-91-8. Through research, I have a further understanding and discovery of Methyl 2,2-dimethoxyacetate

Comprehension in hemicellulose pyrolysis is critical to generate renewable fuel and valuable chemical. Herein, a self-designed tubular reactor was applied to observe the appearance alteration and chemical structure evolution during the whole xylan pyrolysis process. Before 200 degrees C, it was free moisture removal stage without significant chemical structure alteration. Xylan began to depolymerize at 200 degrees C corresponding with the appearance change from its original state to dark brown, cleavage of branched-chain and primary product acids & ketones generation. The main chain of xylan was completely broken at 250-350 degrees C via beta-1,4-glycosidic bond cleavage, dehydration, decarboxylation, and decarbonylation reaction. Acids were mainly originated from hemicellulose pyrolysis. The typical signals from FTIR,C-13 CP/MAS NMR were disappeared at 350 degrees C. In the carbonation stage, the C/H and C/O ratio reached 2.01 and 4.54, leading to the aromaticity enhancement of char and formation of carbon-centered radicals.

Computed Properties of C5H10O4. About Methyl 2,2-dimethoxyacetate, If you have any questions, you can contact Liang, JJ; Chen, J; Wu, SB; Liu, C; Lei, M or concate me.

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

Authors Radcliffe, JE; Fasano, V; Adams, RW; You, PR; Ingleson, MJ in ROYAL SOC CHEMISTRY published article about HETEROCYCLIC CARBENE BORANES; NMR COUPLING-CONSTANTS; CATALYZED HYDROBORATION; CARBONYL-COMPOUNDS; EFFICIENT; INSERTION; ALKENES; ADDITIONS; ALDEHYDES; ADDUCTS in [Radcliffe, James E.; Fasano, Valerio; Adams, Ralph W.; You, Peiran; Ingleson, Michael J.] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England in 2019.0, Cited 44.0. Recommanded Product: Methyl 3-phenyl-2-propenoate. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4

Useful alpha-boryl esters can be synthesized in one step from alpha,beta-unsaturated esters using just a simple to access NHC-BH3 (NHC = N-heterocyclic carbene) and catalytic I-2. The scope of this reductive alpha-borylation methodology is excellent and includes a range of alkyl, aryl substituted and cyclic and acyclic alpha,beta-unsaturated esters. Mechanistic studies involving reductive borylation of a cyclic alpha,beta-unsaturated ester with NHC-BD3/I-2 indicated that concerted hydroboration of the alkene moiety in the alpha,beta-unsaturated ester proceeds instead of a stepwise process involving initial 1,4-hydroboration; this is in contrast to the recently reported reductive alpha-silylation. The BH2(NHC) unit can be transformed into electrophilic BX2(NHC) moieties (X = halide) and the ester moiety can be reduced to the alcohol with the borane unit remaining intact to form b-boryl alcohols. The use of a chiral auxiliary, 8-phenylmenthyl ester, also enables effective stereo-control of the newly formed C-B bond. Combined two step ester reduction/borane oxidation forms diols, including excellent e. e. (97%) for the formation of S-3-phenylpropane-1,2-diol. This work represents a simple transition metal free route to form bench stable alpha-boryl esters from inexpensive starting materials.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Radcliffe, JE; Fasano, V; Adams, RW; You, PR; Ingleson, MJ or concate me.. Recommanded Product: Methyl 3-phenyl-2-propenoate

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

Authors Somkuwar, RG; Sharma, AK; Kambale, N; Banerjee, K; Bhange, MA; Oulkar, DP in SPRINGER INDIA 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. HPLC of Formula: C5H10O4. The Name is Methyl 2,2-dimethoxyacetate. Through research, I have a further understanding and discovery of 89-91-8

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.

About Methyl 2,2-dimethoxyacetate, If you have any questions, you can contact Somkuwar, RG; Sharma, AK; Kambale, N; Banerjee, K; Bhange, MA; Oulkar, DP or concate me.. HPLC of Formula: C5H10O4

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

HPLC of Formula: C10H11NO4. Authors Liu, BW; Zhao, HB; Chen, L; Chen, L; Wang, XL; Wang, YZ in ELSEVIER SCI LTD published article about in [Liu, Bo-Wen; Zhao, Hai-Bo; Chen, Lin; Chen, Li; Wang, Xiu-Li; Wang, Yu-Zhong] Sichuan Univ, Collaborat Innovat Ctr Ecofriendly & Fire Safety, Natl Engn Lab Ecofriendly Polymer Mat Sichuan, Sch Chem Engn,State Key Lab Polymer Mat Engn,MOE, Chengdu 610064, Peoples R China in 2021, Cited 60. The Name is Dimethyl 5-aminoisophthalate. Through research, I have a further understanding and discovery of 99-27-4

Conventional methods to improve the flame retardancy of polymeric materials usually involve the use of flame-retardant elements such as Cl, Br and P, however, their use may bring more smoke and toxic gases hazards, and more importantly, cause non-negligible environmental and ecological problems. In this work, we put forward a novel green strategy that eliminates the use of any conventional flame-retardant elements to improve the flame retardancy by incorporating a synergistically cross-linkable structure (named PN) containing phenylacetylene and phenylimide groups. The resulting PN copolymer exhibited an excellent 55% lower smoke release rate and 68% lower heat release rate than the pure polymer, as well as a high LOI value of 32% and UL-94 V-0 rating with excellent anti-dripping performance. TG-DSC, rheological and FTIR results proved the high cross-linking ability of the PN copolymer due to the synergistic cross-linking effect between the imide-isoimide rearrangement of phenylimide and the self-cross-linking of phenylacetylene. The SEM, Raman and Py-GC/MS results further upheld the condensed phase flame-retardant mechanism. This eco-friendly synergistic cross-linking strategy provided new perspective for the design and synthesis of polymeric materials with excellent flame retardancy, great anti-dripping performance, and low release of heat, smoke, and toxic gas.

HPLC of Formula: C10H11NO4. About Dimethyl 5-aminoisophthalate, If you have any questions, you can contact Liu, BW; Zhao, HB; Chen, L; Chen, L; Wang, XL; Wang, YZ or concate me.

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

I found the field of Chemistry; Crystallography; Materials Science very interesting. Saw the article Fluorescent Metal-Organic Framework Constructed from Semi-rigid Ligand for the Sensitive Sensing of 2,4,6-Trinitrophenol published in 2020. Product Details of 99-27-4, Reprint Addresses Zhu, XD (corresponding author), Anhui Polytech Univ, Coll Biol & Chem Engn, Wuhu 241000, Peoples R China.; Zhu, XD (corresponding author), Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou 350002, Peoples R China.. The CAS is 99-27-4. Through research, I have a further understanding and discovery of Dimethyl 5-aminoisophthalate

A Cd(II)-based metal-organic framework as fluorescent chemical sensor, formulated as {[Cd-3(bmipia)(2)]center dot 10DMF center dot 5H(2)O}(n) (FCS-2), was synthesized through a hydrothermal process and structurally characterized via X-ray crystallography. FCS-2 represented a new three-dimensional framework assembled from a semi -rigid aromatic carboxylate ligand and exhibited fascinating fluorescence due to the highly crystalline and ordered molecular structure. The emission of FCS-2 could be quenched, interestingly, by the presence of trace 2,4,6-trinitrophenol, which indicated that FCS-2 can be applied as a potentially sensitive fluorescent chemical sensor for the detection of nitroaromatic compounds.

Product Details of 99-27-4. About Dimethyl 5-aminoisophthalate, If you have any questions, you can contact Zhang, MY; Dai, RD; Li, BJ; Hang, TX; Xie, JX; Lu, J; Zhu, XD or concate me.

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

An article Synergistic adsorption of Cu(II) and photocatalytic degradation of phenanthrene by a jaboticaba-like TiO2/titanate nanotube composite: An experimental and theoretical study WOS:000450105700109 published article about HEAVY-METAL IONS; DEPOSITED TITANATE NANOTUBES; ZERO-VALENT IRON; WASTE-WATER; TITANIUM-DIOXIDE; SIMULTANEOUS REMOVAL; AQUEOUS-SOLUTIONS; TIO2; OXIDATION; MONTMORILLONITE in [Cheng, Kaiyu] Zhejiang Univ, Ocean Coll, Zhoushan 316021, Peoples R China; [Cai, Zhengqing; Sun, Xianbo] East China Univ Sci & Technol, Natl Engn Lab High Concentrat Refractory Organ Wa, Shanghai 200237, Peoples R China; [Cai, Zhengqing; Fu, Jie] Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China; [Sun, Weiliang] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China; [Chen, Long; Zhang, Dandan; Liu, Wen] Peking Univ, Key Lab Water & Sediment Sci, Minist Educ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China in 2019.0, Cited 66.0. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9. Quality Control of 6H-Benzo[c]chromen-6-one

Combined water pollution with the coexistence of heavy metals and organic contaminants is of great concern for practical wastewater treatment. In this study, a jaboticaba-like nanocomposite, titanate nanotubes supported TiO2 (TiO2/TiNTs), was synthesized by a two-step hydrothermal treatment. TiO2 /TiNTs had large surface area, abundant of -ONa/H groups and fine crystal anatase phase, thus exhibited both good adsorptive performance for Cu(II) and high photocatalytic activity for phenanthrene degradation. The maximum Cu(II) adsorption capacity on TiO2/TiNTs was 115.0 mg/g at pH 5 according to Langmuir isotherm model, and > 95% of phenanthrene was degraded within 4 h under UV light. TiO2/TiNTs showed about 10 times higher observed rate constant (k(obs) ) for phenanthrene degradation compared to the unmodified TiNTs. More importantly, the coexistence of Cu(II) promoted photocatalytic degradation of phenanthrene, because the incorporated Cu(II) in the lattice of TiNTs could trap photo-excited electron and thus inhibited the electron-hole recombination. Density functional theory (DFT) calculation indicated that the sites of phenanthrene with high Fukui index (f(0)) preferred to be attacked by center dot OH radicals. The quantitative structure-activity relationship (QSAR) analysis revealed that the degradation intermediates had lower acute toxicity and mutagenicity than phenanthrene. TiO2/TiNTs also owned high stability, as only slight loss of Cu(II) and phenanthrene removal efficiency was observed even after four reuse cycles. The developed material in this study is of great application potential for water or wastewater treatment with multi-contaminants, and this work can help us to better understand the mechanisms on reaction between Ti-based nanomaterials and different kinds of contaminants.

Quality Control of 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Cheng, KY; Cai, ZQ; Fu, J; Sun, XB; Sun, WL; Chen, L; Zhang, DD; Liu, W or concate me.

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