Category: 6149-41-3

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 6149-41-3, name is Methyl 3-hydroxypropanoate. This compound has unique chemical properties. The synthetic route is as follows. Application In Synthesis of Methyl 3-hydroxypropanoate

Example 16 This example describes the preparation of various alkyl acrylate esters by dehydrating 3-HP esters using various catalysts. A catalyst was placed in a 3-neck flask that was equipped with a temperature probe (in contact with the catalyst). A distillation column and receiving flask were attached so that the vapors formed during the reaction could be collected, and the catalyst was heated to the desired temperature. A solution of a 3-hydroxypropionic acid ester in the corresponding alcohol was added drop-wise directly onto the catalyst using a syringe. The liquid that distilled over was collected and analyzed by gas chromatography. The results, and corresponding experimental conditions are shown in the following table. Ester Catalyst Temperature Concentration Solvent Yield of Yield of (C) of Ester in Acrylic Acrylic Solvent ester (GC) acid (GC) – (%) (%) (%) Ethyl NaH2P04-Silica 275-EtOH 49 26 Ethyl NaH2PO4-Silica 250 35 EtOH 53 Ethyl NaH2PO4-Silica 250 50 EtOH 14 21 Ethyl NaH2PO4-Silica 180 40 EtOH 30 – Ethyl Copper-H3PO4 220 20 EtOH 50 50 Methyl NaH2PO4-Silica 280-MeOH 78 Methyl CuS04-Silica 280-MeOH 37 9 Methyl Cs2CO3-Silica 220 45 MeOH 49 – Butyl NaH2PO4-Silica 280 50 BuOH 40 Similar dehydration reactions were performed using 3-HP as the starting material and a flask containing heated catalyst in place of the GC: (a) Aqueous 3-HP was dehydrated to acrylic acid over NaH2PO4-Silica gel catalyst at 180C. Based on GC and HPLC analysis, the yield of acrylic acid was 90- 96%. (b) Aqueous 3-HP was dehydrated to acrylic acid over H3PO4-Silica gel catalyst at 180C. Based on GC and HPLC analysis, the yield of acrylic acid was 85-90%. (c) Aqueous 3-HP was dehydrated to acrylic acid over CuS04-Silica gel catalyst at 180C. Based on GC and HPLC analysis, the yield of acrylic acid was 73%. (d) Aqueous 3-HP was dehydrated to acrylic acid over Zeolite H-ss powder and 85% H3PO4 as the catalyst at 180C. Based on GC and HPLC analysis, the yield of acrylic acid was 71%. (e) Aqueous 3-hydroxyisobutyric acid was dehydrated to methacrylic acid over NaH2PO4-Silica gel catalyst at 270C. Based on GC analysis, the yield of methacrylic acid was 79%.

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Reference:
Patent; CARGILL, INCORPORATED; WO2003/82795; (2003); A2;,
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Synthetic Route of 6149-41-3, Adding some certain compound to certain chemical reactions, such as: 6149-41-3, name is Methyl 3-hydroxypropanoate,molecular formula is C4H8O3, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 6149-41-3.

EXAMPLE 18 20 grams of Cu(NO3)2.3H2O was dissolved in 40 ml of distilled water, and precipitated at PH=8 with 10% by weight of sodium hydroxide to obtain liquid A. 26.0 grams of Na2SiO3.9H2O and 2.3 ml of ethanol solution containing 30% of TiCl4 were dissolved in 60 ml of distilled water, and then precipitated at PH=8 with 10% by weight of sodium hydroxide to obtain liquid B. The liquid A and liquid B were mixed, aged at 80 C. for 4 hours, filtrated, and washed until the filtrate became neutral, dried at 120 C. for 16 hours, baked at 600 C. for 4 hours, and crushed into fine particles, and screened. The particles with a particle size of 20-40 mesh were selected for future use. 1.0 gram of CuCl was prepared into 20 ml of solution, and the above catalyst particles were immersed into the solution for 8 hours, and baked at 350 C. for 4 hours. The catalysts prepared by the above three methods were charged into fixed reactors each having an inner diameter of 15 mm and a length of 250 mm, respectively. The charging amount of the catalyst was 4 grams. H2 was firstly introduced into the reactor, and then the temperature was increased to 300 C. with a increasing speed of 0.5 C./min. The resultant was reduced in situ for 4 hours, followed by decreasing the temperature to 140 C. A methanol solution containing methyl 3-hydroxyl-propionate was introduced into the reactor to carry out a hydrogenation reaction and the results are shown in table 1. TABLE 1 The selectivity of methyl The selectivity of Catalyst 3-hydroxyl-propionate % 1,3-propylene glycol % Method 1 80.3 79.6 Method 2 90.9 87.1 Method 3 93.9 88.2

According to the analysis of related databases, 6149-41-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Chen, Jing; Cui, Fang; Liu, Jianhua; Xia, Chungu; Tong, Jin; US2007/191629; (2007); A1;,
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Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Abd El-Hafiz, Dalia R., once mentioned the application of 6149-41-3, Name is Methyl 3-hydroxypropanoate, molecular formula is C4H8O3, molecular weight is 104.1045, MDL number is MFCD00272293, category is alcohols-buliding-blocks. Now introduce a scientific discovery about this category, Product Details of 6149-41-3.

The main goal of this research is direct synthesis of ethanol from methane bi-reforming reaction (H2O/CO2 methane reforming, SCMR) in a single step catalytic process. Smart nano-structured spinel ferrite catalysts with small ratio of Cu or Mn in composite with Fe cluster were prepared using ultrasonic assistance technique. Characterization data indicate the stability of the prepared ferrite structure during calcination step, so it can use for high temperature reaction. From XPS and Raman spectra, cupper ferrite shows deviation from ideal spinel structure, which increases the migration of bulk oxygen into surface to share in catalytic activity. The catalytic activity test was performed at moderate reaction condition (700 degrees C) using CO2 as soft oxidant to avoid methane combustion reaction and steam to release the alcoholic products. The two catalysts show unusual high catalytic activity and stability due to strong synergetic effect between metal and Fe. Cu-Fe gives high selectivity (similar to 50%) toward liquid product (ethanol), while Mn-Fe is more selective (similar to 70%) toward gas product (syngas). Furthermore, the chemical looping step is used to obtain ultra-stable SCMR reaction. The steam activation steps were performed for re-oxidation of reduced catalyst in addition to removal of carbon deposited. (c) 2020 Elsevier Ltd. All rights reserved.

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Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. , Quality Control of Methyl 3-hydroxypropanoate, 6149-41-3, Name is Methyl 3-hydroxypropanoate, molecular formula is C4H8O3, belongs to alcohols-buliding-blocks compound. In a document, author is Wang, Yan-Qin, introduce the new discover.

Recently, artificial intelligence has driven the development of shape memory hydrogels (SMHs) with complicated environmental sensitive abilities. However, current SMHs possess fundamental limitations in terms of their responsive performance and mechanical properties, which severely limits their practical applications. Herein, a triple-network composite hydrogel with Fe3+, NIR light, and thermal responsive abilities is fabricated and developed as multi-SMHs, named as PDA/CMC-Fe3+/PVA hydrogel. In this hydrogel system, the interpenetrating triple network are formed by chemically-physically co-crosslinked polyvinyl alcohol (PVA) networks, and physically crosslinked carboxymethyl cellulose (CMC)-Fe3+ network. In addition, polydopamine (PDA), which is introduced into the hydrogel system by in-situ polymerization way, could not only serve as an energy converter to endow the hydrogel with NIR-based responsive ability, but also enhance its mechanical strength. Remarkably, the as-prepared PDA/CMC-Fe3+/PVA hydrogels with the optimized compositions exhibit relatively excellent mechanical properties (tensile strength = 163.48 +/- 10.42 kPa, elastic modulus = 45.42 +/- 3.96 kPa, toughness = 165.02 +/- 7.01 kJ/m(3)) due to the synergistic effect of the triple-network and PDA doping. Moreover, the composition of the hydrogel is optimized to realize a stable temporary shape and rapid recovery to the permanent shape, which is controlled by Fe3+, NIR irradiation, and thermal stimulus. The resultant hydrogels exhibit not only multi-stimulus responsive abilities, but also programmable multi-shape memory properties. The versatile shape memory properties endow potential for the materials to be used in the field of artificial intelligence.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 6149-41-3. Quality Control of Methyl 3-hydroxypropanoate.

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Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 6149-41-3, Name is Methyl 3-hydroxypropanoate, molecular formula is C4H8O3, belongs to alcohols-buliding-blocks compound. In a document, author is Liu, Yuntong, introduce the new discover, Quality Control of Methyl 3-hydroxypropanoate.

A bionic PEEK composite structure with negatively charged surface adsorbing molecular brushes possessing improved biotribological properties for artificial joints

To improve the contact mode of artificial joints and their tribological performance, inspired by the ‘soft-on-hard’ structure of ‘cartilage-subchondral bone’ as well as negatively charged characteristic of the cartilage surface with brush-like molecules, a polyetheretherketone (PEEK)-hydrogel composite structure with negatively charged surface adsorbing cationic molecules through electrostatic interaction was designed and fabricated. Characterization results demonstrated that polyacrylic acid (PAA) hydrogel strengthened by polyvinyl alcohol (PVA) microcrystals was successfully fabricated on the PEEK substrate through ultra-violet (UV) radiation. Adsorption of cationic monomers was also confirmed. The PEEK-hydrogel composite structure had significantly reduced friction coefficient, similar to 80% lower than that of PEEK, owing to the synergistic effect of biphasic and boundary lubrication. This work proposes a novel route to develop the friction surface of artificial joints with advanced performance and contributes to the understanding of lubrication mechanism of artificial joints.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 6149-41-3. Quality Control of Methyl 3-hydroxypropanoate.

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Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 6149-41-3, Name is Methyl 3-hydroxypropanoate, SMILES is O=C(OC)CCO, in an article , author is He, Yingying, once mentioned of 6149-41-3, Recommanded Product: 6149-41-3.

Cellulose nanofibrils-based hybrid foam generated from Pickering emulsion toward high-performance microwave absorption

The development of multifunctional microwave absorbers that worked in complex environments remains challenging. In this study, oil-in-water Pickering emulsion gelation approach was combined with freeze-drying to prepare foam-based microwave absorbers along with appealing photo-thermal conversion and thermal insulation. In hybrid foam, cellulose nanofibrils (CNP) and polylactic acid (PLA) serve as three-dimensional skeleton, where carbon nanotubes (CNT) and Fe3O4 nanoparticles are homogeneously incorporated, which forms a conductive network with hetero-interfaces. The optimal reflection loss value of the foam reaches -65.14 dB with a thickness of 3.0 mm. The foam also demonstrate high photo-thermal conversion performance with its surface temperature up to 97 degrees C after irradiation under 1 Sun for 5 min. Additionally, the foam shows superior thermal insulation comparing with the commercial polyvinyl alcohol and polyurethane foams. This study may offer a promising approach to develop ultralight and high-performance microwave absorber with great potential for multifunctional applications.

Interested yet? Read on for other articles about 6149-41-3, you can contact me at any time and look forward to more communication. Recommanded Product: 6149-41-3.

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Alcohol – Wikipedia,
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Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 6149-41-3, Name is Methyl 3-hydroxypropanoate, molecular formula is C4H8O3, belongs to alcohols-buliding-blocks compound. In a document, author is Liu, Yuntong, introduce the new discover, Quality Control of Methyl 3-hydroxypropanoate.

A bionic PEEK composite structure with negatively charged surface adsorbing molecular brushes possessing improved biotribological properties for artificial joints

To improve the contact mode of artificial joints and their tribological performance, inspired by the ‘soft-on-hard’ structure of ‘cartilage-subchondral bone’ as well as negatively charged characteristic of the cartilage surface with brush-like molecules, a polyetheretherketone (PEEK)-hydrogel composite structure with negatively charged surface adsorbing cationic molecules through electrostatic interaction was designed and fabricated. Characterization results demonstrated that polyacrylic acid (PAA) hydrogel strengthened by polyvinyl alcohol (PVA) microcrystals was successfully fabricated on the PEEK substrate through ultra-violet (UV) radiation. Adsorption of cationic monomers was also confirmed. The PEEK-hydrogel composite structure had significantly reduced friction coefficient, similar to 80% lower than that of PEEK, owing to the synergistic effect of biphasic and boundary lubrication. This work proposes a novel route to develop the friction surface of artificial joints with advanced performance and contributes to the understanding of lubrication mechanism of artificial joints.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 6149-41-3. Quality Control of Methyl 3-hydroxypropanoate.

Reference:
Alcohol – Wikipedia,
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Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 6149-41-3, Name is Methyl 3-hydroxypropanoate, SMILES is O=C(OC)CCO, in an article , author is He, Yingying, once mentioned of 6149-41-3, Recommanded Product: 6149-41-3.

Cellulose nanofibrils-based hybrid foam generated from Pickering emulsion toward high-performance microwave absorption

The development of multifunctional microwave absorbers that worked in complex environments remains challenging. In this study, oil-in-water Pickering emulsion gelation approach was combined with freeze-drying to prepare foam-based microwave absorbers along with appealing photo-thermal conversion and thermal insulation. In hybrid foam, cellulose nanofibrils (CNP) and polylactic acid (PLA) serve as three-dimensional skeleton, where carbon nanotubes (CNT) and Fe3O4 nanoparticles are homogeneously incorporated, which forms a conductive network with hetero-interfaces. The optimal reflection loss value of the foam reaches -65.14 dB with a thickness of 3.0 mm. The foam also demonstrate high photo-thermal conversion performance with its surface temperature up to 97 degrees C after irradiation under 1 Sun for 5 min. Additionally, the foam shows superior thermal insulation comparing with the commercial polyvinyl alcohol and polyurethane foams. This study may offer a promising approach to develop ultralight and high-performance microwave absorber with great potential for multifunctional applications.

Interested yet? Read on for other articles about 6149-41-3, you can contact me at any time and look forward to more communication. Recommanded Product: 6149-41-3.

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Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 6149-41-3, Name is Methyl 3-hydroxypropanoate, SMILES is O=C(OC)CCO, in an article , author is Sun, Yujing, once mentioned of 6149-41-3, Computed Properties of C4H8O3.

Using power ultrasound to release glycosidically bound volatiles from orange juice: A new method

Acid hydrolysis and enzymatic hydrolysis are the main methods for releasing glycosidically bound volatiles (GBV). However, acid hydrolysis yields a strong pungent odor, and enzymatic hydrolysis is time consuming. In the present study, a new method, ultrasound hydrolysis, is reported to release GBV. This method is simple, environmentally friendly, fast and effective. Large differences were observed in the released aglycones and glycosyls between ultrasound and enzymatic hydrolysis of GBV. More types of aglycones were released under ultrasound than enzymatic hydrolysis. Alcohols and esters were the main aglycones under enzymatic hydrolysis, and terpenoids, esters and aldehydes were the main aglycones under ultrasound hydrolysis. The glycosyls released under ultrasound hydrolysis were mannose, glucose and sucrose, and those released under enzymatic hydrolysis were galactose and sucrose. The present study gives a new insight into a hydrolytic method for GBV by using ultrasound hydrolysis and can provide a reference method for fruit juice aromatization.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 6149-41-3, you can contact me at any time and look forward to more communication. Computed Properties of C4H8O3.

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A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 6149-41-3, Name is Methyl 3-hydroxypropanoate, molecular formula is C4H8O3. In an article, author is Vakhrushev, Alexander Yu.,once mentioned of 6149-41-3, Product Details of 6149-41-3.

TiO2 and TiO2/Ag nanofibers: template synthesis, structure, and photocatalytic properties

A fairly simple method for the synthesis of TiO2 and TiO2/Ag fibers containing the anatase-rutile-silver heterojunction with a combination of features attractive for photocatalysis is presented.TiO2 and TiO2/Ag fibers were synthesized by impregnating a cellulose template with alcohol solutions of titanium(IV) tetrabutoxide and silver nitrate, followed by annealing at 500-950 degrees C. The microstructure of the fibers was analyzed by X-ray diffraction, scanning electronic microscopy, high-resolution transmission electronic microscopy and IR Fourier spectroscopy. The thermal decomposition of silver nitrate results in the formation of silver particles (19 +/- 3 nm), does not affect the crystallite size of anatase (19 +/- 3 nm) and rutile (23 +/- 3 nm), and promotes rutilization of TiO2. The photocatalytic activities of the obtained TiO2/Ag fibers were investigated by evaluating the phenol degradation under visible light irradiation. The highest catalytic activity was shown by mixed-phase samples consisting of 40% rutile and 60% anatase.

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