Month: October 2021

In 2020 IND ENG CHEM RES published article about SUGARCANE BAGASSE; DIETHYL MALEATE; DEPOLYMERIZATION; EFFICIENT; DELIGNIFICATION; OXIDATION; CLEAVAGE; MONOMERS; BIOMASS; PHENOL in [Li, Zhang-min; Long, Jin-xing; Zeng, Qiang; Wu, Yuan-hao; Cao, Ming-long; Liu, Si-jie; Li, Xue-hui] South China Univ Technol, State Key Lab Pulp & Paper Engn, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China; [Li, Zhang-min] Jiangxi Normal Univ, Coll Chem & Chem Engn, Nanchang 330022, Jiangxi, Peoples R China in 2020, Cited 39. The Name is Methyl 2,2-dimethoxyacetate. Through research, I have a further understanding and discovery of 89-91-8. Category: esters-buliding-blocks

Catalytic conversion of lignin to versatile aromatic compounds is attracting increasing attention. However, it is highly desirable but challenging to produce a specific chemical with high yield through lignin depolymerization in a one-pot process because of the complex structure of the lignin molecule (mainly composed of H, G, and S units). In this study, a series of metal-based deep eutectic solvents (M-DESs) were prepared and used for the catalytic tailoring of lignin H units to produce value-added methyl p-hydroxycinnamate (MPC). In particular, M-DES ChCl[FeCl3](2) showed excellent catalytic performance for the selective production of MPC as the sole product with high yield and selectivity (105.8 mg g(-1) and 74.1%, respectively). Extensive characterizations using 2D HSQC NMR, C-13 NMR, and GPC demonstrated that MPC was obtained from the selective tailoring of p-coumaric acid (pCA) units via the cleavage of ester bonds in lignin. Furthermore, M-DES ChCl[FeCl3](2) also exhibited efficiency to other herbaceous lignins, and showed excellent recyclability. Therefore, this work provides an effective strategy for the valorization of lignin.

About Methyl 2,2-dimethoxyacetate, If you have any questions, you can contact Li, ZM; Long, JX; Zeng, Q; Wu, YH; Cao, ML; Liu, SJ; Li, XH or concate me.. Category: esters-buliding-blocks

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

I found the field of Chemistry very interesting. Saw the article N-Heterocyclic carbene-catalyzed deaminative cross-coupling of aldehydes with Katritzky pyridinium salts published in 2020.0. HPLC of Formula: C10H12O2, Reprint Addresses Hong, S (corresponding author), Korea Adv Inst Sci & Technol, Dept Chem, Daejeon 34141, South Korea.; Hong, S (corresponding author), Inst for Basic Sci Korea, Ctr Catalyt Hydrocarbon Functionalizat, Daejeon 34141, South Korea.. The CAS is 103-25-3. Through research, I have a further understanding and discovery of Methyl 3-phenylpropionate

By employing an N-heterocyclic carbene (NHC) catalyst, we developed a versatile catalytic system that enables deaminative cross-coupling reactions of aldehydes with redox-active pyridinium salts. Katritzky pyridinium salts behave as single-electron oxidants capable of generating alkyl radicals enabled by the redox properties of the enolate form of Breslow intermediates. The resultant alkyl radical undergoes efficient recombination with the NHC-bound aldehyde-derived carbonyl carbon radical for the formation of a C-C bond. The mild and transition metal-free reaction conditions tolerate a broad range of functional groups, and its utility has been further demonstrated by the modification of a series of peptide feedstocks and application to the three-component dicarbofunctionalization of olefins.

HPLC of Formula: C10H12O2. About Methyl 3-phenylpropionate, If you have any questions, you can contact Kim, I; Im, H; Lee, H; Hong, S or concate me.

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

Application In Synthesis of 6H-Benzo[c]chromen-6-one. In 2019.0 CHEMISTRYSELECT published article about BAEYER-VILLIGER OXIDATION; SELECTIVE OXIDATION; AROMATIC-ALDEHYDES; CATALYTIC THIOCYANATION; EFFICIENT BROMINATION; SODIUM PERCARBONATE; BENZYLIC ALCOHOLS; HYDROGEN-PEROXIDE; AMIDATION; EPOXIDATION in [Khosravi, Kaveh; Naserifar, Shirin] Arak Univ, Dept Chem, Fac Sci, Arak 3815688349, Iran in 2019.0, Cited 61.0. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9.

Urea-2,2-dihydroperoxypropane (UDHPP)- a white crystalline solid oxidant which is formed when urea is recrystallized from dihydroperoxypropane- was applied as the terminal oxidant in several oxidative procedures namely epoxidation of alpha, beta-unsaturated ketones and alkenes, oxidation of sulfides to sulfoxides and sulfones, bayer-villeger reaction, bromination and iodation of aniline and phenol derivatives, oxidative esterification, oxidative amidation of aromatic aldehydes, thiocyanation of aromatic compounds, and oxidation of pyridines, oxidation of secondary, allylic and benzylic alcohols. All the approaches were carried out under mild conditions and short reaction times and afforded the corresponding products in high yields.

Application In Synthesis of 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Khosravi, K; Naserifar, S 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

In 2020.0 BMC NEUROL published article about GELATINASE B GENE; CEREBROSPINAL-FLUID; SUSCEPTIBILITY; MATRIX-METALLOPROTEINASE-9; PROMOTER; ASSOCIATION; HERITABILITY; MS; EXPRESSION; BIOMARKERS in [Mohammadhosayni, Mina] Shahed Univ, Dept Immunol, Fac Med, Tehran, Iran; [Khosrojerdi, Arezou] Tarbiat Modares Univ, Dept Med Immunol, Fac Med Sci, Tehran, Iran; [Lorian, Keivan] Univ Tehran Med Sci, Sch Med, Dept Physiol, Tehran, Iran; [Aslani, Saeed] Univ Tehran Med Sci, Sch Med, Dept Immunol, Tehran, Iran; [Imani, Danyal] Univ Tehran Med Sci, Sch Publ Hlth, Dept Immunol, Tehran, Iran; [Razi, Bahman] Tarbiat Modares Univ, Sch Med, Dept Hematol & Blood Transfus, Tehran, Iran; [Babaie, Farhad] Urmia Univ Med Sci, Cellular & Mol Res Ctr, Orumiyeh, Iran; [Torkamandi, Shahram] Urmia Univ Med Sci, Dept Med Genet & Immunol, Fac Med, Orumiyeh, Iran in 2020.0, Cited 61.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3. Quality Control of Methyl 3-phenylpropionate

Background Several studies have reported the association between polymorphisms in Matrix metalloproteinases (MMPs) gene family and risk of Multiple sclerosis (MS). However, the results have been inconsistent and inconclusive. To resolve this issue, here we performed a systematic review and meta-analysis of the MMP-91562 C/T (rs3918242), MMP-3 (- 1612 5A/6A), and MMP-2 (- 1306 C/T) polymorphisms and susceptibility to MS. Methods We conducted a comprehensive systematic search in the major electronic database, including Scopus and PubMed to look up for relevant studies published before December 2019 that surveyed the association between the MMP-91562 C/T (rs3918242), MMP-3 (- 1612 5A/6A), and MMP-2 (- 1306 C/T) polymorphisms and susceptibility to MS. The level of association between the polymorphisms and susceptibility to MS in the polled analysis was determined by calculating the odds ratio (OR) and the corresponding 95% confidence interval (CI). Results We found 15 studies containing 2430 MS subjects and 2304 controls. A statistically significant association was observed in the all five comparisons of the MMP-91562 C/T polymorphism and MS risk as follows: dominant model (OR = 1.62, 95% CI = 1.03-2.53, P = 0.03), recessive model (OR = 2.69, 95% CI = 1.68-4.29, P < 0.001), allelic model (OR = 1.51, 95% CI = 1-2.28, P = 0.04), TT vs. CC model (OR = 3.20, 95% CI = 1.87-5.46, P < 0.001), and CT vs. CC model (OR = 1.53, 95% CI = 1.02-2.28, P = 0.04). Conclusions Our meta-analysis revealed significant association of MMP-9 (- 1562 C/T) Single-nucleotide polymorphism (SNP) with MS susceptibility that increased the disease risk. About Methyl 3-phenylpropionate, If you have any questions, you can contact Mohammadhosayni, M; Khosrojerdi, A; Lorian, K; Aslani, S; Imani, D; Razi, B; Babaie, F; Torkamandi, S or concate me.. Quality Control of Methyl 3-phenylpropionate

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

An article Synthesis and optical properties of a library of multi-colored isomeric aryldibenzopyrylium halochromic cations WOS:000534460400006 published article about ELECTRON-TRANSFER; HYDRIDE; IONS; DYES; AGGREGATION; REDUCTION; ROSAMINE; PROTON in [Meyer, Samantha M.; Charlesworth-Seiler, Eva M.; Patrow, Joel G.; Kitzrow, Jonathan P.; Gerlach, Deidra L.; Dahl, Bart J.] Univ Wisconsin, Dept Chem, Eau Claire, WI 54702 USA; [Reinheimer, Eric W.] Rigaku Amer Corp, 9009 New Trails Dr, The Woodlands, TX 77381 USA in 2020.0, Cited 40.0. Recommanded Product: 6H-Benzo[c]chromen-6-one. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9

This report describes the synthesis of five new colorful 6-aryldibenzo[b,d]pyrylium cation salts, a largely unexplored structural unit. These rare compounds are benzannulated structural derivatives of the well-known flavylium cations found widespread in natural pigments. These new dyes are directly compared to three previously synthesized 6-aryldibenzo[b,d]pyrylium cation salts as well as eight colorful isomeric 9-aryldibenzo[b,d]pyrylium cation, or 9-arylxanthylium, salts. The 9-arylxanthylium unit is commonly found in the biologically important rhodamine and rosamine dyes, yet six of the analogs presented in this study were either previously unreported or not isolated. The visual and spectroscopic properties of all 16 compounds were analyzed as a function of the structural differences between the compounds. All compounds displayed reversible halochromism in organic solution, displaying bright colors under acidic conditions and becoming colorless under basic conditions. (C) 2020 Elsevier Ltd. All rights reserved.

About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Meyer, SM; Charlesworth-Seiler, EM; Patrow, JG; Kitzrow, JP; Gerlach, DL; Reinheimer, EW; Dahl, BJ or concate me.. Recommanded Product: 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

Authors Song, T; Ma, ZM; Yang, Y in WILEY-V C H VERLAG GMBH published article about N-HETEROCYCLIC CARBENE; SELECTIVE HYDROGENATION; CONJUGATE REDUCTION; HIGHLY EFFICIENT; OXIDE CATALYSTS; COMPLEXES; KETONES; LOUREIRIN; ALDEHYDES; NITROARENES in [Song, Tao; Ma, Zhiming; Yang, Yong] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China; [Ma, Zhiming] Univ Chinese Acad Sci, Beijing 100049, Peoples R China in 2019.0, Cited 71.0. Application In Synthesis of 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

Herein, we report highly chemoselective hydrogenation of alpha,beta-unsaturated carbonyls to saturated carbonyls catalyzed by cobalt nanoparticles supported on the biomass-derived carbon from bamboo shoots with molecular hydrogen in water, which is the first prototype using a heterogeneous non-noble metal catalyst for such organic transformation as far as we know. The optimal cobalt nanocatalyst, CoOx@NC-800, manifested remarkable activity and selectivity for hydrogenation of C=C in alpha,beta-unsaturated carbonyls under mild conditions. A broad set of alpha,beta-aromatic and aliphatic unsaturated carbonyls were selectively reduced to their corresponding saturated carbonyls in up to 99 % yields with good tolerance of various functional groups. Meanwhile, a new straightforward one-pot cascade synthesis of saturated carbonyls was realized with high activity and selectivity via the cross-aldol condensation of ketones with aldehydes followed by selective hydrogenation. More importantly, this one-pot strategy is applicable for the expedient synthesis of Loureirin A, a versatile bioactive and medicinal molecule, from readily available starting materials, further highlighting the practical utility of the catalyst. In addition, the catalyst can be easily separated for successive reuses without significant loss in both activity and selectivity.

Application In Synthesis of Methyl 3-phenyl-2-propenoate. About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Song, T; Ma, ZM; Yang, Y or concate me.

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 The merger of decatungstate and copper catalysis to enable aliphatic C(sp(3))-H trifluoromethylation published in 2020.0. Category: esters-buliding-blocks, Reprint Addresses MacMillan, DWC (corresponding author), Princeton Univ, Merck Ctr Catalysis, Princeton, NJ 08544 USA.. The CAS is 103-25-3. Through research, I have a further understanding and discovery of Methyl 3-phenylpropionate

The introduction of a trifluoromethyl (CF3) group can dramatically improve a compound’s biological properties. Despite the well-established importance of trifluoromethylated compounds, general methods for the trifluoromethylation of alkyl C-H bonds remain elusive. Here we report the development of a dual-catalytic C(sp(3))-H trifluoromethylation through the merger of light-driven, decatungstate-catalysed hydrogen atom transfer and copper catalysis. This metallaphotoredox methodology enables the direct conversion of both strong aliphatic and benzylic C-H bonds into the corresponding C(sp(3))-CF3 products in a single step using a bench-stable, commercially available trifluoromethylation reagent. The reaction requires only a single equivalent of substrate and proceeds with excellent selectivity for positions distal to unprotected amines. To demonstrate the utility of this new methodology for late-stage functionalization, we have directly derivatized a broad range of approved drugs and natural products to generate valuable trifluoromethylated analogues. Preliminary mechanistic experiments reveal that a ‘Cu-CF3’ species is formed during this process and the critical C(sp(3))-CF3 bond-forming step involves the copper catalyst.

About Methyl 3-phenylpropionate, If you have any questions, you can contact Sarver, PJ; Bacauanu, V; Schultz, DM; DiRocco, DA; Lam, YH; Sherer, EC; MacMillan, DWC or concate me.. Category: esters-buliding-blocks

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

An article Taking electrodecarboxylative etherification beyond Hofer-Moest using a radical C-O coupling strategy WOS:000607085800015 published article about DECARBOXYLATIVE ALLYLIC ETHERIFICATION; OXIDATIVE DECARBOXYLATION; CARBOXYLIC-ACIDS; ANODIC-OXIDATION; ELECTROCHEMICAL SYNTHESIS; ALIPHATIC-ACIDS; MALONIC-ACID; ARYL; COMPLEXES; ELECTROLYSIS in [Martinez, Angel Manu; Hayrapetyan, Davit; van Lingen, Tim; Dyga, Marco; Goossen, Lukas J.] Ruhr Univ Bochum, Fak Chem & Biochem, Univ Str 150, D-44801 Bochum, Germany in 2020.0, Cited 75.0. HPLC of Formula: C10H12O2. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3

Established electrodecarboxylative etherification protocols are based on Hofer-Moest-type reaction pathways. An oxidative decarboxylation gives rise to radicals, which are further oxidised to carbocations. This is possible only for benzylic or otherwise stabilised substrates. Here, we report the electrodecarboxylative radical-radical coupling of lithium alkylcarboxylates with 1-hydroxybenzotriazole at platinum electrodes in methanol/pyridine to afford alkyl benzotriazole ethers. The substrate scope of this electrochemical radical coupling extends to primary and secondary alkylcarboxylates. The benzotriazole products easily undergo reductive cleavage to the alcohols. They can also serve as synthetic hubs to access a wide variety of functional groups. This reaction prototype demonstrates that electrodecarboxylative C-O bond formation can be taken beyond the intrinsic substrate limitations of Hofer-Moest mechanisms.

HPLC of Formula: C10H12O2. About Methyl 3-phenylpropionate, If you have any questions, you can contact Martinez, AM; Hayrapetyan, D; van Lingen, T; Dyga, M; Goossen, LJ or concate me.

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

Authors Huang, ZX; Pang, DR; Liao, ST; Zou, YX; Zhou, PF; Li, EN; Wang, WF in ELSEVIER published article about in [Huang, Zhaoxiang; Pang, Daorui; Liao, Sentai; Zou, Yuxiao; Zhou, Pengfei; Li, Erna; Wang, Weifei] Guangdong Acad Agr Sci, Sericultural & Agri Food Res Inst, Key Lab Funct Foods, Minist Agr & Rural Affairs,Guangdong Key Lab Agr, Guangzhou 510610, Guangdong, Peoples R China; [Huang, Zhaoxiang] Zhongkai Univ Agr & Engn, Coll Light Ind & Food, Guangzhou 510225, Guangdong, Peoples R China in 2021.0, Cited 50.0. Recommanded Product: 103-26-4. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4

Cinnamon is an important spice crop that is widely cultivated in tropical regions. In this study, the antibacterial activities of four accessions of cinnamon essential oil (CEO) belonging to three different species (CEO1 and CEO4, Cinnamomum cassia Presl. (Lauraceae) bark; CEO2, Cinnamomum zeylanicum Blume (Lauraceae) bark; CEO3, Cinnamomum burmannii Blume (Lauraceae) bark) toward Salmonella enterica subsp. enterica serovar pullorum (S. pullorum) were evaluated by microdilution assay and kinetic analysis. The minimum inhibitory concentration (MIC) of the CEOs were all 0.31 mg/mL, and kinetic analysis suggested that the lag phase and maximum specific growth rate of bacteria were concentration dependent. Furthermore, to explore the synergistic antibacterial effects between main components and minor components, the volatile constituents of CEOs were determined by gas chromatography-mass spectrometry (GC-MS). Cinnamaldehyde (CM) (57.73 %-91.79 %) was the principal constituent in CEO1-CEO4 (p < 0.05), with CEO3 having the highest CM contents. Screening of the active minor compounds isolated from CEOs showed that cinnamic acid (CA), salicylaldehyde, alpha-pinene, o-anisaldehyde with MIC value of 0.31-2.5 mg/mL had better antibacterial activity. A synergistic effect against S. pullorum was observed when CA was combined with CM. To explore the potential synergistic mechanism, the membrane glycerophospholipid (GPL) composition of S. pullorum was characterized by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). CM, CA, and their combination regulated the levels of most phosphatidylethanolamines (PEs), phosphatidylglycerols (PGs), phosphatidic acids (PAs), and some cardiolipins (CLs). About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Huang, ZX; Pang, DR; Liao, ST; Zou, YX; Zhou, PF; Li, EN; Wang, WF or concate me.. Recommanded Product: 103-26-4

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

Name: Methyl 3-phenyl-2-propenoate. I found the field of Biochemistry & Molecular Biology; Chemistry very interesting. Saw the article Profiling of Volatile Compounds and Associated Gene Expression in Two Anthurium Cultivars and Their F1 Hybrid Progenies published in 2021.0, Reprint Addresses Guo, HR (corresponding author), South China Agr Univ, Coll Forestry & Landscape Architecture, Guangdong Key Lab Innovat Dev & Utilizat Forest P, Guangzhou 510642, Peoples R China.; Yi, MS (corresponding author), Guangzhou Flower Res Ctr, Guangzhou 510360, Peoples R China.. The CAS is 103-26-4. Through research, I have a further understanding and discovery of Methyl 3-phenyl-2-propenoate.

Anthurium is an important ornamental crop in the world market and its floral scent can enhance its ornamental value. To date, studies of the components and formation mechanism of the floral scent of Anthurium are relatively few. In this study, the scent profiles of two Anthurium varieties were measured by gas chromatograph-mass spectrometer (GC-MS). There were 32 volatile organic compounds (VOCs) identified in Anthurium ‘Mystral’, and the most abundant compound was eucalyptol (57.5%). Extremely small amounts of VOCs were detected in Anthurium ‘Alabama’. Compared with A. ‘Alabama’, most genes related to floral scent synthesis exhibited a higher expression in A. ‘Mystral’, including AaDXS, AaDXR, AaMDS, AaHDS, AaTPS, AaDAHPS, AaADT2, AaPAL1, and AaPAL2. In order to produce new varieties of Anthurium with fragrance, 454 progenies of two crossbred combinations of A. ‘Mystral’ and A. ‘Alabama’ were obtained. Four F1 generation plants with different floral scent intensities were selected for further study. The major components of floral scent in the progenies were similar to that of the parental A. ‘Mystral’ plant. The expression patterns of genes related to floral scent synthesis were consistent with the relative contents of different types of VOCs. This study revealed the profiles of volatile compounds and associated gene expression in two Anthurium cultivars and their F1 hybrids, which provided a basis for the floral scent inheritance of Anthurium andraeanum.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Wei, Q; Xia, Q; Wang, Y; Chen, W; Liu, CL; Zeng, RZ; Xie, L; Yi, MS; Guo, HR or concate me.. Name: 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