Category: 6149-41-3

Formula: C4H8O3In 2021 ,《Cobalt Carbonyls Stabilized by N,P-Ligands: Synthesis, Structure, and Catalytic Property for Ethylene Oxide Hydroalkoxycarbonylation》 was published in Chemistry – An Asian Journal. The article was written by Zhao, Jinbo; Wu, Peng; Lai, Enyi; Li, Jiancheng; Chen, Yilin; Jiang, Wenjun; Wang, Binju; Zhu, Hongping. The article contains the following contents:

Reactions of N,P-Ligands as Ph2P(o-NMe2C6H4) (1L), 2,6-iPr2C6H3NHC(Ph)=NC6H4(o-PPh2) (2L), and Ph2PN(R)PPh2 (R = iPr (3L), cyclo-C6H11 (4L), tBu (5L), CH2C4H7O (6L)) each with dicobalt octacarbonyl produced [1LCo(CO)3]2 (1), [2LCo(CO)(μ-CO)2Co(CO)3] (2), [3LCo(CO)3]+[Co(CO)4]- (3), [3LCo(CO)2]2 (4), [4LCo(CO)2]2 (5), [5LCo(CO)2]+[Co(CO)4]- (6), and [6LCo(CO)2]+[Co(CO)4]- (7). 1-7 Have all been structurally characterized by x-ray crystallog., IR and NMR spectroscopies, and elemental anal. Catalytic tests on transformation of ethylene oxide (EO), CO and MeOH into Me 3-hydroxypropionate (3-HMP) indicate that complexes 1-7 are active, where ion-pair complexes 3 and 6-7 behave more excellently (by achieving 88.4-93.6% 3-HMP yields) than the neutral species 1-2 and 4-5 (35.0-46.5% 3-HMP yields) when the reactions are all operated at 2 MPa CO pressure and 50° in MeOH solvent. D. functional theory (DFT) study by selecting 3 as a model suggests a cooperative catalytic reaction mechanism by [Co(CO)4]- and its countercation [3LCo(CO)3]+. The cobalt-homonuclear ion-pair catalyzed hydroalkoxycarbonylation of EO is present herein. The experimental part of the paper was very detailed, including the reaction process of Methyl 3-hydroxypropanoate(cas: 6149-41-3Formula: C4H8O3)

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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. Formula: C4H8O3

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

In 2006,Rucklidge, Adam J.; Morris, George E.; Slawin, Alexandra M. Z.; Cole-Hamilton, David J. published 《The methoxycarbonylation of vinyl acetate catalyzed by palladium complexes of [1,2-phenylenebis(methylene)]bis[di(tert-butyl)phosphine]》.Helvetica Chimica Acta published the findings.Name: Methyl 3-hydroxypropanoate The information in the text is summarized as follows:

Palladium complexes of [1,2-phenylenebis(methylene)]bis[di(tert-butyl)phosphine] (1) catalyze the methoxycarbonylation of vinyl acetate (= ethenyl acetate) in the presence of methanesulfonic acid. High selectivities to ester products can be obtained if free phosphine ligand is in excess over the amount of added acid. Selectivities to Me 2-acetoxypropanoate, a precursor to lactate esters, can be as high as 3.6:1 at low temperature and pressure. Replacing tBu by iPr groups leads to less-active catalysts and lower selectivities to the branched product. Replacing the phenylene moiety by a naphthalenediyl moiety also gives lower activity, but with similar selectivity to the phenylene-based analogs. Linear hydrocarbon-chain linkers as the backbone instead of the phenylenebis-(methylene) linker leads to poor catalysis, except for a propane-1,3-diyl linker, which gives good rates but poor branched selectivity. The effect of different reaction conditions on the catalysis is discussed. The syntheses of the new xylene-based diphosphines with one to four iPr groups replacing the tBu groups at the P-atoms of 1, based on 1,2- and 2,3-dimethylnaphthalene are also described. The crystal structure of rac-[1,2-phenylenebis(methylene)]bis[(tert-butyl)isopropylphosphine]-borane is described. In addition to this study using Methyl 3-hydroxypropanoate, there are many other studies that have used Methyl 3-hydroxypropanoate(cas: 6149-41-3Name: Methyl 3-hydroxypropanoate) was used in this study.

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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. Name: Methyl 3-hydroxypropanoate

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

In 2016,Liu, Yu-Bing; Wang, Yi-Ning; Lu, Hai-Meng; Liang, Shuang; Xu, Bo-Lian; Fan, Yi-Ning published 《Immobilization of Carbonylcobalt Catalyst by Poly(4-vinylpyridine) (P4VP) through N→Co Coordination Bonds: The Promotional Effect of Pyridine and the Reusability of Polymer Catalyst》.Chemistry – An Asian Journal published the findings.HPLC of Formula: 6149-41-3 The information in the text is summarized as follows:

A carbonylcobalt catalyst, immobilized by poly(4-vinylpyridine) (P4VP) through N→Co coordination bonds, has been prepared by solvothermal method. It has been revealed that the pyridine fragments in the polymer catalyst act not only as promoters to improve the catalytic performance of the carbonylcobalt catalyst for alkoxycarbonylation of ethylene oxide to Me 3-hydroxypropanoate but also as stabilizers to enhance the reusability of the polymer catalyst. Furthermore, the polymer catalyst could be easily separated by filtration and reused with only a slight loss of catalytic efficiency. The experimental part of the paper was very detailed, including the reaction process of Methyl 3-hydroxypropanoate(cas: 6149-41-3HPLC of Formula: 6149-41-3)

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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. HPLC of Formula: 6149-41-3

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

In 2006,Kim, Hoon Sik; Bae, Jin Yong; Lee, Je Seung; Jeong, Cheong Il; Choi, Dae Ki; Kang, Sang Ook; Cheong, Minserk published 《An efficient catalytic system for the carbomethoxylation of ethylene oxide》.Applied Catalysis, A: General published the findings.Synthetic Route of C4H8O3 The information in the text is summarized as follows:

Me β-hydroxypropionate (MHP), an intermediate to propane-1,3-diol (PDO) was produced in high yield from the carbomethoxylation of ethylene oxide (EO) using a catalytic system consisting of Co2(CO)8 and ZnX2L2 (1: L = pyridine; 2: L = phosphine; X = Cl, Br, I). The carbomethoxylation was greatly influenced by the variation of temperature and CO pressure. The increase of temperature increased the EO conversion, but decreased the selectivity to MHP. Both the yield and the selectivity of MHP increased with increasing CO pressure. FT-IR spectroscopic studies show that Co2(CO)8 interacts with (C5H5N)2ZnBr2, affording a new ionic cobalt carbonyl species. After reading the article, we found that the author used Methyl 3-hydroxypropanoate(cas: 6149-41-3Synthetic Route of C4H8O3)

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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. Synthetic Route of C4H8O3

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

In 2017,Rajendiran, Senkuttuvan; Park, Kwangho; Lee, Kwangyeol; Yoon, Sungho published 《Ionic-Liquid-Based Heterogeneous Covalent Triazine Framework Cobalt Catalyst for the Direct Synthesis of Methyl 3-Hydroxybutyrate from Propylene Oxide》.Inorganic Chemistry published the findings.Computed Properties of C4H8O3 The information in the text is summarized as follows:

β-Hydroxy esters are considered as potential building blocks for the production of fine chems. and potential drug mols. in various industries. Developing an efficient and recyclable catalyst for the synthesis of β-hydroxy esters is challenging. Here we report the first ionic-liquid-based heterogenized cobalt catalyst, [imidazolium-CTF][Co(CO)4], for the direct ring-opening carbonylation of propylene oxide to Me 3-hydroxybutyrate (MHB) with 86% selectivity (>99% conversion). In addition to this study using Methyl 3-hydroxypropanoate, there are many other studies that have used Methyl 3-hydroxypropanoate(cas: 6149-41-3Computed Properties of C4H8O3) was used in this study.

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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 C4H8O3

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

Category: esters-buliding-blocksIn 2015 ,《Effects of adsorbents on benzo(a)pyrene, sesamol, and sesamolin contents and volatile component profiles in sesame oil》 was published in Food Science and Biotechnology. The article was written by Shin, Bo Ram; Yang, Seung-Ok; Song, Hye-Won; Chung, Myung-Sub; Kim, Young-Suk. The article contains the following contents:

Effects of adsorbent treatments used for reduction of benzo(a)pyrene (BaP) levels in volatile profiles and sesamol and sesamolin antioxidant contents in sesame oil were evaluated. Charcoal-based activated carbons with different mesh sizes and celite were used as adsorbents. Treatment with activated carbons led to reductions in BaP contents of sesame oil. A small charcoal-based activated carbon particle size was more effective for removal of BaP. Celite; however, did not show an effect on the BaP content of sesame oil under the exptl. conditions. Volatile profiles of sesame oil were not influenced by addition of any adsorbent, and the sesamol and sesamolin contents were reduced by all adsorbents. In the part of experimental materials, we found many familiar compounds, such as Methyl 3-hydroxypropanoate(cas: 6149-41-3Category: esters-buliding-blocks)

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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. Category: esters-buliding-blocks

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

《Modular and scalable synthesis of nematode pheromone ascarosides: implications in eliciting plant defense response》 was published in Organic & Biomolecular Chemistry in 2020. These research results belong to Ning, Shuai; Zhang, Lei; Ma, Jinjin; Chen, Lan; Zeng, Guangyao; Yang, Chao; Zhou, Yingjun; Guo, Xiaoli; Deng, Xu. Electric Literature of C4H8O3 The article mentions the following:

A highly efficient and modular synthesis of nematode pheromone ascarosides was developed, which highlights a 4-step scalable synthesis of the common intermediate I in 23% yield from com. available L-rhamnose by using ortho-esterification/benzylation/ortho-ester rearrangement as the key step. Six diverse ascarosides were synthesized accordingly. Notably, biol. investigations revealed that ascaroside II (n = 4) and ascaroside II (n = 8) treatment resulted in enhanced callose accumulation in Arabidopsis leaves. Ascaroside II (n = 8) also increased the expression of defense-related genes such as PR1, PDF1.2, LOX2 and AOS, which might contribute to the enhanced plant defense responses. This study not only allows a facile access to 1-O, 2-O, and 4-O substituted ascarosides, but also provides valuable insights into their biol. activities in inducing plant defense response, as well as their mode of action. In the experimental materials used by the author, we found Methyl 3-hydroxypropanoate(cas: 6149-41-3Electric Literature of C4H8O3)

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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. Electric Literature of C4H8O3

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

In 2002,Oliver, James E.; Doss, Robert P.; Marquez, Brian; DeVilbiss, E. David published 《Bruchins, plant mitogens from weevils: structural requirements for activity》.Journal of Chemical Ecology published the findings.Application In Synthesis of Methyl 3-hydroxypropanoate The information in the text is summarized as follows:

Bruchins are 3-hydroxypropanoate esters of long-chain α,ω-diols from pea weevils and cowpea weevils that have been shown to initiate callus formation on pea pods at extremely low application rates. Synthetic analogs have been prepared and examined to evaluate structural requirements for inducing this unusual neoplastic response. Chain length (optimum length C22-C24) is important, whereas unsaturation within the chain is relatively unimportant. Difunctionality is required for maximum activity, but the α,ω-diols themselves are inactive. Most critical is the ester portion(s) of the mols.; 3-hydroxypropanoate esters are far more active than any analogs examined In the part of experimental materials, we found many familiar compounds, such as Methyl 3-hydroxypropanoate(cas: 6149-41-3Application In Synthesis of Methyl 3-hydroxypropanoate)

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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. Application In Synthesis of Methyl 3-hydroxypropanoate

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

Recommanded Product: Methyl 3-hydroxypropanoateIn 2006 ,《Total syntheses of zaragozic acids A and C by a carbonyl ylide cycloaddition strategy》 was published in Chemistry – A European Journal. The article was written by Hirata, Yuuki; Nakamura, Seiichi; Watanabe, Nobuhide; Kataoka, Osamu; Kurosaki, Takahiro; Anada, Masahiro; Kitagaki, Shinji; Shiro, Motoo; Hashimoto, Shunichi. The article contains the following contents:

A carbonyl ylide cycloaddition approach to the squalene synthase inhibitors zaragozic acids A and C is described. The carbonyl ylide precursor was synthesized starting from di-tert-Bu D-tartrate via an eleven-step sequence involving the regioselective reduction of the mono-MPM (MPM = 4-methoxybenzyl) ether with LiBH4 and the diastereoselective addition of sodium tert-Bu diazoacetate to α-keto ester. The reaction of α-diazo ester with 3-butyn-2-one in the presence of a catalytic amount of [Rh2(OAc)4] gave the desired cycloadduct as a single diastereomer. The dihydroxylation of enone followed by sequential transformations permitted the construction of the fully functionalized 2,8-dioxabicyclo[3.2.1]octane core. Alkene serves as a common precursor to zaragozic acids A (1) and C (2), since the elongation of the C1 alkyl side chain can be attained by olefin cross-metathesis, especially under the influence of Blechert’s catalyst. In the experiment, the researchers used Methyl 3-hydroxypropanoate(cas: 6149-41-3Recommanded Product: Methyl 3-hydroxypropanoate)

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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: Methyl 3-hydroxypropanoate

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

In 2010,Lv, Zhiguo; Wang, Hengsheng; Li, Juan; Guo, Zhenmei published 《Hydroesterification of ethylene oxide catalyzed by 1-butyl-3-methylimidazolium cobalt tetracarbonyl ionic liquid》.Research on Chemical Intermediates published the findings.Recommanded Product: 6149-41-3 The information in the text is summarized as follows:

In this paper, functional ionic liquid 1-butyl-3-methylimidazolium cobalt tetracarbonyl [Bmim][Co(CO)4] is prepared in a metathesis reaction between [Bmim]Cl and KCo(CO)4. The structure of [Bmim]+ is illustrated by 1H NMR, while [Co(CO)4]- is confirmed by IR(νCO) spectrum. Me 3-hydroxypropionate(3-HPM), an intermediate to 1,3-propanediol (1,3-PDO), can be prepared in high yield by hydroesterification of ethylene oxide in the presence of a [Bmim][Co(CO)4] catalyst. Under a pressure of 3.7 MPa and at 75°, the yield of 3-HPM can reach 90.8% in 10 h. Even after the catalyst is recycled three times, a yield of more than 80% can be obtained. A possible reaction mechanism has also been proposed. In the experiment, the researchers used many compounds, for example, Methyl 3-hydroxypropanoate(cas: 6149-41-3Recommanded Product: 6149-41-3)

Methyl 3-hydroxypropanoate(cas: 6149-41-3) belongs to esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. 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: 6149-41-3

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