Category: 1190-39-2

Transesterification of diethyl malonate with n-butanol over HPWA/MCM-41 molecular sieves was written by Ajaikumar, S.;Backiaraj, M.;Mikkola, J.-P.;Pandurangan, A.. And the article was included in Journal of Porous Materials in 2013.Name: malonic acid dibutyl ester This article mentions the following:

Mesoporous Si-MCM-41 and Al-MCM-41 (Si/Al = 100) materials were synthesized via a hydrothermal method. Three different ratios (10, 20 and 30 wt%) of heteropoly tungstic acid (HPWA) was loaded on Si-MCM-41 by wet impregnation techniques. The characteristic structural features of the prepared materials were studied by various physico-chem. techniques such as X-ray diffraction (XRD), Nitrogen physisorption (BET), temperature programmed desorption of ammonia (TPD) and transmission electron microscopy (TEM). Transesterification of di-Et malonate (DEM) with n-butanol under autogenous conditions in a temperature range from 50 to 125鎺?was selected as the test reaction for the as synthesized materials. The reactants were fed with various mole ratios in order to determine the optimal feed composition leading to maximum yields of transesterified products. The results indicated that the conversion of di-Et malonate depends on the HPWA concentration on the support, temperature, reaction time and mole ratio of the reactants. Further, the catalytic efficiency of HPWA/MCM-41 was compared with that of Al-MCM-41. The solid acid HPWA/MCM-41 catalysts have several advantages in comparison to conventional mineral acid catalysts which are heterogeneous, eco-friendly, highly active and selective in the formation of transesters. In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Name: malonic acid dibutyl ester).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Name: malonic acid dibutyl ester

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

Organic synthesis by use of inorganic salts. XII. Preparation of esters of carboxylic acids in dimethylformamide was written by Yoneda, Shigeo;Yoshida, Zenichi;Fukui, Kenichi. And the article was included in Kogyo Kagaku Zasshi in 1966.Computed Properties of C11H20O4 This article mentions the following:

The reaction of organic halides with RCO2K or RCO2Na proceeds readily in HCONMe2 (I) or Me2SO (II). BuBr (III) treated with AcOK (IV) 2 hrs. at 90-100鎺?in I or II to give AcOBu in 98 or 95% yields. The following esters of carboxylic acids were synthesized by the reaction of organic halides with RCO2K or RCO2Na in I or II [halides, solvents, RCO2K or RCO2Na, reaction temperature, reaction time, and % yield of ester given]: BuF, I, IV, 90-100鎺? 2 hrs., 0; BuF, II, IV, 90-100鎺? 2 hrs., 0; BuCl, I, IV, 90-100鎺? 2 hrs., 19; BuCl, II, IV, 90-100鎺? 2 hrs., 35; BuI, I, IV, 90-100鎺? 2 hrs., 96; BuI, II, IV, 90-100鎺? 2 hrs., 95; III, EtOH, IV, 90-100鎺? 2 hrs., 21; III, HOCH2CH2OH, IV, 90-100鎺? 2 hrs., 17; III, MeCN, IV, 90-100鎺? 2 hrs., 12; III, Me2CO, IV, 70-80鎺? 2 hrs., 39; III, AcNMe2, IV, 90-100鎺? 2 hrs., 98; MeI, I, IV, 30鎺? 4 hrs., 99; EtBr, I, IV, 30鎺? 4 hrs., 98; PrI, I, IV, 90-100鎺? 2 hrs., 97; n-C6H13Br, I, IV, 90-100鎺? 4 hrs., 92; n-C8H17Br, I, IV, 90-100鎺? 8 hrs., 90; CH2:CHCH2Br, I, IV, 30鎺? 2 hrs., 98; CH2:CMeCH2Br, I, IV, 30鎺? 2 hrs., 95; MeCH:CHCH2Br, I, IV, 30鎺? 2 hrs., 95; Ph-CH2Br, I, IV, 30鎺? 2 hrs., 96; III, I, HCO2K, 90-100鎺? 2 hrs., 97; III, I, EtCO2K, 90-100鎺? 4 hrs., 93; III, I, PrCO2K, 90-100鎺? 4 hrs., 90; III, I, BuCO2K, 90-100鎺? 4 hrs., 90; III, I, iso-BuCO2K, 90-100鎺? 4 hrs., 88; III, I, PhCH2CO2K, 90-100鎺? 4 hrs., 95; III, I, CH2:CHCO2K, 90-100鎺? 4 hrs., 92; III, I, MeCH:CHCH:CHCO2K, 90-100鎺? 4 hrs., 90; III, I, PhCH:-CHCO2K, 90-100鎺? 4 hrs., 88; III, I, (KO2C)2, 90-100鎺? 8 hrs., 82; III, I, NaO2CCH2CO2Na, 90-100鎺? 8 hrs., 67; III, I, (NaO2-CCH2)2, 90-100鎺? 8 hrs., 75; III, I, NaO2C(CH2)3CO2NA, 90-100鎺? 8 hrs., 65; III, I, KO2C(CH2)4CO2K, 90-100鎺? 8 hrs., 81; EtBr, I, KO2C(CH:CH)2CO2K, 90-100鎺? 8 hrs., 78; EtBr, I, PhCO2Na, 50-60鎺? 8 hrs., 93; EtBr,I, PhCO2K (V), 50-60鎺? 8 hrs., 94%; III, I, V, 90-100鎺? 8 hrs., 96; n-C6H13Br, I, V, 90-100鎺? 8 hrs., 90; CH2:CHCH2Br, I, V, 90-100鎺? 2 hrs., 97; PhCH2Br, I, V, 90-100鎺? 2 hrs., 93; BrCH2CH2Br, I, IV, 90-100鎺? 8 hrs., 88; Br(CH2)3Br, I, IV, 90-100鎺? 8 hrs., 85; Br(CH2)4Br, I, IV, 90-100鎺? 8 hrs., 80; o-C6H4(CH2Cl)2 (VI), I, IV, 12鎺? 80 hrs., 80; VI, I, K2CO3, 12鎺? 21 hrs., 21; EtBr, I, o-C6H4-(CO2K)2 (VII), 150鎺? 4 hrs., 82; III, I, VII, 150鎺? 4 hrs., 69; III, I, m-C6H4(CO2K)2, 150鎺? 4 hrs., 85; III, I, p-C6H4(CO2K)2, 150鎺? 4 hrs., 83; n-C6H13Br, I, VII, 150鎺? 8 hrs., 75; n-C8H17Br, I, VII, 150鎺? 8 hrs., 72; CH2:CHCH2Br, I, VII, 100鎺? 8 hrs., 61; Ph-CH2Br, I, VII, 100鎺? 8 hrs., 58; BrCH2CH2Br, I, VII, 150鎺? 4 hrs., 85. Treatment of 0.2 mole p-C6H4(CO2K)2 with 0.2 mole Br-CH2CH2Br afforded poly(ethylene terephthalate), m. 242鎺? In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Computed Properties of C11H20O4).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Computed Properties of C11H20O4

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

Determination of water soluble organic compounds in Arctic aerosols by capillary GC and GC/MS was written by Kasukabe, Hideki;Kawamura, Kimitaka;Barrie, Leonard A.. And the article was included in Bunseki Kagaku in 1994.Recommanded Product: 1190-39-2 This article mentions the following:

Water soluble organic compounds in Arctic aerosol samples were analyzed by using GC/MS. The carboxyl and aldehyde groups in the bi-functional compounds were derivatized with 14% BF₃/BuOH to di-Bu ester and di-Bu acetal, resp. The results showed that oxalic (C₂) acid was the dominant species (1.8-70 ng/m³) followed by malonic (C₃) and succinic (C₄) acid in all samples, in July 1987-June 1988. Total concentrations of dicarboxylic acids were 4.3-97 ng/m³ and showed seasonal variation with a maximum at Arctic sunrise. In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Recommanded Product: 1190-39-2).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is 绾?valerolactone.Recommanded Product: 1190-39-2

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

Metal nanoparticles assisted amine catalyzed transesterification under ambient conditions was written by Rathore, Puran Singh;Advani, Jacky;Rathore, Sonika;Thakore, Sonal. And the article was included in Journal of Molecular Catalysis A: Chemical in 2013.Name: malonic acid dibutyl ester This article mentions the following:

Ethylenediamine provides excellent activity under ambient conditions when assisted by metal nanoparticles for the transesterification of higher to lower esters and vice versa. This is the first report on room temperature conversion of di-Et malonate to di-Me malonate using this novel catalytic system. The nanoparticles were successfully recycled up to 24 cycles (although with an increase in reaction time) with no compromise in the yield. Various primary alcs. were used for transesterification. The scope was extended to aliphatic, heterocyclic and aromatic esters with various functional groups. In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Name: malonic acid dibutyl ester).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Name: malonic acid dibutyl ester

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

Copper-catalyzed regiodivergent 1,4- and 1,6-conjugate silyl addition to diendioates: access to functionalized allylsilanes was written by Ahmad, Tanveer;Li, Qi;Qiu, Sheng-Qi;Xu, Jian-Lin;Xu, Yun-He;Loh, Teck-Peng. And the article was included in Organic & Biomolecular Chemistry in 2019.Recommanded Product: 1190-39-2 This article mentions the following:

A Cu-catalyzed regioselective 1,4- and 1,6-conjugate addition of a silyl reagent to diendioates was established. Various 1,4- and 1,6-protosilylation products were obtained in good yields and with high regioselectivity via tuning the ligands used in the reactions. This protocol provided a simple and efficient method for the synthesis of multisubstituted functionalized allylsilanes. In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Recommanded Product: 1190-39-2).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is 绾?valerolactone.Recommanded Product: 1190-39-2

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

Asymmetric cyclizations via a sequential Michael addition/Conia-ene reaction by combining multifunctional quaternary phosphonium salt and silver catalysis was written by Fang, Guosheng;Zheng, Changwu;Cao, Dongdong;Pan, Lu;Hong, Haoran;Wang, Hongyu;Zhao, Gang. And the article was included in Tetrahedron in 2019.HPLC of Formula: 1190-39-2 This article mentions the following:

A one-pot asym. Michael addition/Conia-ene reaction sequence, catalyzed by combination of a dipeptide-derived multifunctional quaternary phosphonium salt and Ag₂CO₃ was developed, which provided a series of synthetically important chiral methylenecyclopentane derivatives in moderate to excellent yields (up to 97%) and enantioselectivities (up to 93%). In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2HPLC of Formula: 1190-39-2).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.HPLC of Formula: 1190-39-2

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

A Highly Stereoselective Organocatalytic Tandem Aminoxylation/Aza-Michael Reaction for the Synthesis of Tetrahydro-1,2-Oxazines was written by Zhu, Di;Lu, Min;Chua, Pei Juan;Tan, Bin;Wang, Fei;Yang, Xinhao;Zhong, Guofu. And the article was included in Organic Letters in 2008.Formula: C11H20O4 This article mentions the following:

A facile stereoselective synthesis of multifunctionalized tetrahydro-1,2-oxazines (THOs) has been achieved by the organocatalyzed asym. tandem 浼?aminoxylation/aza-Michael reaction for the C-O/C-N bond formations in moderate to good yields with excellent diastereo- (>99:1 dr) and enantioselectivities (92% to >99% ee). E.g., reaction of di-Me 2-(5-oxopentylidene)malonate (I) with nitrosobenzene, catalyzed by L-proline, gave 84% tetrahydro-1,2-oxazine II (98% ee). In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Formula: C11H20O4).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Formula: C11H20O4

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

A Highly Stereoselective Organocatalytic Tandem Aminoxylation/Aza-Michael Reaction for the Synthesis of Tetrahydro-1,2-Oxazines was written by Zhu, Di;Lu, Min;Chua, Pei Juan;Tan, Bin;Wang, Fei;Yang, Xinhao;Zhong, Guofu. And the article was included in Organic Letters in 2008.Formula: C11H20O4 This article mentions the following:

A facile stereoselective synthesis of multifunctionalized tetrahydro-1,2-oxazines (THOs) has been achieved by the organocatalyzed asym. tandem 伪-aminoxylation/aza-Michael reaction for the C-O/C-N bond formations in moderate to good yields with excellent diastereo- (>99:1 dr) and enantioselectivities (92% to >99% ee). E.g., reaction of di-Me 2-(5-oxopentylidene)malonate (I) with nitrosobenzene, catalyzed by L-proline, gave 84% tetrahydro-1,2-oxazine II (98% ee). In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Formula: C11H20O4).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Formula: C11H20O4

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

A Highly Stereoselective Organocatalytic Tandem Aminoxylation/Aza-Michael Reaction for the Synthesis of Tetrahydro-1,2-Oxazines was written by Zhu, Di;Lu, Min;Chua, Pei Juan;Tan, Bin;Wang, Fei;Yang, Xinhao;Zhong, Guofu. And the article was included in Organic Letters in 2008.Formula: C11H20O4 This article mentions the following:

A facile stereoselective synthesis of multifunctionalized tetrahydro-1,2-oxazines (THOs) has been achieved by the organocatalyzed asym. tandem α-aminoxylation/aza-Michael reaction for the C-O/C-N bond formations in moderate to good yields with excellent diastereo- (>99:1 dr) and enantioselectivities (92% to >99% ee). E.g., reaction of di-Me 2-(5-oxopentylidene)malonate (I) with nitrosobenzene, catalyzed by L-proline, gave 84% tetrahydro-1,2-oxazine II (98% ee). In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Formula: C11H20O4).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Formula: C11H20O4

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

Synthesis and Characterization of 12-Tungstosilicic Acid Anchored to MCM-41 as well as Its Use as Environmentally Benign Catalyst for Synthesis of Succinate and Malonate Diesters was written by Brahmkhatri, Varsha;Patel, Anjali. And the article was included in Industrial & Engineering Chemistry Research in 2011.Quality Control of malonic acid dibutyl ester This article mentions the following:

12-Tungstosilisic acid anchored to MCM-41 was synthesized and characterized by various physicochem. techniques such as thermogravimetric anal. (TGA), Fourier transform IR (FT-IR), laser-Raman spectroscopy, diffuse reflectance spectroscopy (DRS), N₂ adsorption-desorption, ²⁹Si-magic-angle spinning (MAS) NMR, x-ray diffraction, SEM, and TEM. The total acidity was determined by Bu amine titration The types of acidic sites (acidic strength) were determined by potentiometric titration The use of synthesized material was explored for esterification of diacarboxylic acids with butanol. Influence of various reaction parameters (catalyst concentration, acid/alc. molar ratio and reaction time) on catalytic performance was studied. The catalyst shows high activity in terms of higher yields toward diesters, especially for dioctyl succinate and dioctyl malonate. The catalyst was also regenerated and reused for four cycles. All these characteristics imply the high potential of an environmentally benign catalyst for synthesis of succinate and malonate diesters. In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Quality Control of malonic acid dibutyl ester).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Quality Control of malonic acid dibutyl ester

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