Tag: 100-200

Studies on catalytic synthesis of fructone with modified fly ash was written by Liu, Xianxiang;Yin, Dulin;Yang, Yongjun;Zuo, Chuanpeng;Wang, Jihui. And the article was included in Riyong Huaxuepin Kexue in 2009.Category: dioxole The following contents are mentioned in the article:

The synthesis of fructone from Et acetoacetate and ethylene glycol using fly ash modified by ammonium persulfate as solid acid catalyst was investigated. Various reaction parameters such as reaction time, ratio of Et acetoacetate to ethylene glycol, catalyst amount and water-carrying reagent amount were studied. The optimum reaction conditions were as follows: the molar ratio of Et acetoacetate to ethylene glycol 1:1.8, the quantity of catalyst 1.5 weight% by weight of Et acetoacetate, amount of cyclohexane 15 mL, and the reaction time 3 h. Under this optimum condition, the yield of fructone reaches 95.9%. The exptl. results showed that fly ash modified by ammonium persulfate was an excellent catalyst for synthesis of fructone. Compared with other acid catalysts, the sulfonated activated carbon has higher activity, less used quantity and reusability. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Category: dioxole).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Dioxole functionalized metal-organic frameworks have also been recently reported.Category: dioxole

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Catalytic synthesis of 2-methyl-2-ethyl acetoacetate-1,3-dioxolane with iodine was written by Yang, Shuijin;Tong, Wenlong. And the article was included in Jingxi Shiyou Huagong Jinzhan in 2008.Reference of 6413-10-1 The following contents are mentioned in the article:

In this paper, 2-methyl-2-Et acetoacetate-1, 3-dioxolane was synthesized from Et acetoacetate and ethylene glycol using I₂ as catalyst. The effects of molar ratio of Et acetoacetate to ethylene, the catalyst dosage and reaction time on the yield of 2-methyl-2-Et acetoacetate-1,3-dioxolane were investigated. Comparison of catalytic activity of different catalysts was made. Exptl. result showed that yield of 2-methyl-2-Et acetoacetate-1,3-dioxolane could reach 73.2 % under the conditions as follows: molar ratio of Et acetoacetate to ethylene 1:1.8, the dosage of catalyst 0.3 % based on feed stocks, cyclohexane as carrying-water reagent, and the reaction time 1.0 h. The catalyst had a fairly high catalytic activity for the ketalization reaction, and had the characteristics in short reaction time, less catalyst dosage and high yield. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Reference of 6413-10-1).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Although benzodioxole is not particularly important, many related compounds containing the methylenedioxyphenyl group are bioactive, and thus are found in pesticides and pharmaceuticals.Reference of 6413-10-1

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Enantioselective microbial hydrolysis of dissymmetrical cyclic carbonates with disubstitution was written by Nogawa, Masaki;Sugawara, Satomi;Iizuka, Rie;Shimojo, Megumi;Ohta, Hiromichi;Hatanaka, Minoru;Matsumoto, Kazutsugu. And the article was included in Tetrahedron in 2006.Product Details of 6413-10-1 The following contents are mentioned in the article:

Enantioselective microbial hydrolysis of C₁ and C₂ dissym. cyclic carbonates with disubstitution (Me and another groups) has been developed. Pseudomonas diminuta (FU0090), a bacterium, efficiently catalyzes the hydrolysis of five-membered cyclic carbonates. While the trans-substrates are hydrolyzed with low enantioselectivities and/or reactivities, the microbe hydrolyzes the cis-substrates with very high enantioselectivities to afford the corresponding almost optically pure anti-(2R,3S)-diols. On the other hand, six-membered trans-cyclic carbonates are enantioselectively hydrolyzed to afford the corresponding optically active syn-(2R,4R)-diols, although the hydrolysis of the cis-substrates gives racemic compounds In all cases, the enzyme prefers the (R)-enantiomer for the carbon atom bearing a Me group. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Product Details of 6413-10-1).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Dioxole functionalized metal-organic frameworks have also been recently reported.Product Details of 6413-10-1

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Catalytic synthesis of fructone by a new solid sulfonic acid sulfonated activated carbon was written by Xu, Qiong;Yin, Dulin;Zhong, Wenzhou;Peng, Chuanzhi;Wang, Jihui. And the article was included in Xiangliao Xiangjing Huazhuangpin in 2007.Reference of 6413-10-1 The following contents are mentioned in the article:

Synthesis of fructone from Et acetoacetate and ethylene glycol using sulfonated activated carbon as solid acid catalyst was investigated. Various reaction parameters such as ratio of Et acetoacetate to ethylene glycol, catalyst amount, reaction time and water-carrying reagent amount were studied. The optimum reaction conditions were: the molar ratio of Et acetoacetate to ethylene glycol was 1:1.8, the quantity of catalyst was equal to 2% Et acetaoacetate, amount of cyclohexane was 20mL, and the reaction time was 3 h. The yield of fructone reached 93.1%, and its selectivity was nearly 100% under the optimum condition. The sulfonated activated carbon was an excellent catalyst for synthesis of fructone. Compared with other acid catalysts, the sulfonated activated carbon has higher activity, less usage and no pollution. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Reference of 6413-10-1).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Although benzodioxole is not particularly important, many related compounds containing the methylenedioxyphenyl group are bioactive, and thus are found in pesticides and pharmaceuticals.Reference of 6413-10-1

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Study on catalytic synthesis of fructone was written by Deng, Bin;Zhang, Aihua;Xu, Anwu. And the article was included in Shangqiu Shifan Xueyuan Xuebao in 2009.Reference of 6413-10-1 The following contents are mentioned in the article:

Microwave irradiation was used in the catalytic synthesis of fructone from Et acetoacetate and ethanol using nanometer Y₂O₃ as a catalyst. The influence of microwave irradiation power, microwave irradiation time, mole ratio of ethanol to Et acetoacetate, and the dosage of the catalyst on the reaction was investigated. The optimum reaction conditions determined through orthogonal design were as follows: microwave irradiation power was 400 W, microwave irradiation time 9 min, the mole ratio of ethanol to Et acetoacetate was 1.2 : 1 and the dosage of the catalyst was 2.0 g. Under the optimum reaction conditions the yield of fructone was above 95 %. In summary, the microwave technique promotes the synthesis of fructone with high yield and convenient operation and has extensive utilization. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Reference of 6413-10-1).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. 1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.Reference of 6413-10-1

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Condensation reactions assisted by acidic hydrogen bonded hydroxyl groups in solid tin(ii)hydroxychloride was written by Marakatti, Vijaykumar S.;Shanbhag, Ganapati V.;Halgeri, Anand B.. And the article was included in RSC Advances in 2013.Recommanded Product: 6413-10-1 The following contents are mentioned in the article:

Tin(ii)hydroxychloride is reported as a heterogeneous Bronsted acid catalyst. Sn(OH)Cl was synthesized by a precipitation method and characterized by XRD, FT-IR, ¹H MAS NMR, SEM, TG-DTA and N₂ sorption. The acidity measurements of tin(ii)hydroxychloride by FT-IR pyridine adsorption and ¹H MAS NMR showed the presence of Bronsted acidity. The Bronsted acidity can be attributed to strong hydrogen bonding between the -OH and Cl groups. Sn(OH)Cl showed high activity for important condensation reactions such as the Prins condensation, Claisen-Schmidt condensation and ketalization. The catalytic activity of Sn(OH)Cl was compared with that of SnO, SnO₂ and Sn₂(OH)₂O. The catalyst was recycled three times with a negligible decrease in activity. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Recommanded Product: 6413-10-1).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Dioxole functionalized metal-organic frameworks have also been recently reported.Recommanded Product: 6413-10-1

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Catalytic synthesis of 2-methyl-2-ethoxycarbonylmethyl-1,3-dioxolane with iodine doped polyaniline was written by Yang, Shuijin;Yin, Guojun;Lu, Baolan. And the article was included in Jingxi Shiyou Huagong Jinzhan in 2011.Safety of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate The following contents are mentioned in the article:

2-Methyl-2-ethoxycarbonylmethyl-1,3-dioxolane was synthesized by the reaction of Et acetylacetate with glycol with I₂/PAn as the catalyst, and the effect of I₂/PAn on the catalytic activity of ketal reaction as well as the effect of molar ratio of materials, catalyst usage and reaction time on product yield were studied. According to the results, I₂/PAn is a good catalyst for synthesizing 2-methyl-2-ethoxycarbonylmethyl-1,3-dioxolane. The optimum reaction conditions were identified, i.e. n(Et acetylacetate):n(glycol) = 1:1.6, percentage of catalyst amount in total mass of reaction materials: 0.6%, water carrying agent: cyclohexane, and reaction time: 45 min. The yield of 2-methyl-2-ethoxycarbonylmethyl-1,3-dioxolane can reach 86.2% at above conditions. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Safety of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. 1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.Safety of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Preparation of fructone catalyzed by aluminum sulfate in ionic liquid medium was written by Lin, Qi;Li, Xinzhong;Chen, Yiting;Lou, Benyong. And the article was included in Journal of Saudi Chemical Society in 2011.Application In Synthesis of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate The following contents are mentioned in the article:

Fructone [synthetic aroma, apple ketal 2,4-dimethyl-2-ethylacetoacetate-1,3-dioxolane, 2-methyl-1,3-dioxolane-2-acetic acid Et ester] was prepared from Et acetoacetate (EAA) with 1,2-propanediol (PPO) catalyzed by aluminum sulfate in the presence of an ionic liquid A combination of aluminum sulfate and [bmim]BF₄ exhibited good catalytic activity and high selectivity towards fructone. A synergistic effect of aluminum sulfate and [bmim]BF₄ on the acetalization (ketalization) was observed After the reaction was complete, the products could be separated from the reaction mixture extraction with di-Me ether and the catalyst and ionic liquid could be directly recycled several times without a significant decrease in the activity and selectivity towards fructone. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Application In Synthesis of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Although benzodioxole is not particularly important, many related compounds containing the methylenedioxyphenyl group are bioactive, and thus are found in pesticides and pharmaceuticals.Application In Synthesis of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Preparation and application of magnetic solid acid SO₄^2--/ZrO₂/Fe₃O₄/WO₃ for synthesis of fructone was written by Ren, Bo;Fan, Meiqing;Wang, Jun;Jing, Xiaoyan. And the article was included in Solid State Sciences in 2011.Synthetic Route of C8H14O4 The following contents are mentioned in the article:

A synthesis route to SO₄^2--/ZrO₂/Fe₃O₄/WO₃ solid acid catalysts with magnetism is reported through chem. co-precipitation method. The obtained solid acid catalysts are characterized in detail by x-ray diffraction, Different Scanning Calorimetry (DSC), TEM, Vibrating Sample Magnetometer (VSM), N₂ adsorption-desorption, Temperature-Programmed Pesorption (TPD) of ammonia. The introduction of WO₃ and Fe₃O₄ strongly inhibit the phase transformation of zirconia and improve the thermal stability of zirconia. Furthermore, the obtained materials present super-paramagnetism and magnetism. The super acid exhibits high catalytic activity in forming fructone by condensation. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Synthetic Route of C8H14O4).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. 1,3-Benzodioxole can be synthesized from catechol with disubstituted halomethanes.Synthetic Route of C8H14O4

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

A Comparative Human Health Risk Assessment of p-Dichlorobenzene-Based Toilet Rimblock Products Versus Fragrance/Surfactant-Based Alternatives was written by Aronson, Dallas B.;Bosch, Stephen;Gray, D. Anthony;Howard, Philip H.;Guiney, Patrick D.. And the article was included in Journal of Toxicology and Environmental Health in 2007.Synthetic Route of C8H14O4 The following contents are mentioned in the article:

Consumer human health risks from using 1 of 2 types of toilet rimblock products, a p-dichlorobenzene-based rimblock or 2 newer fragrance/surfactant-based alternatives, were assessed. Rimblock products, designed for consumer use worldwide, function by releasing volatile compounds into indoor air with subsequent exposure presumed to be mainly via inhalation. Using the THERdbASE exposure model and exptl. determined emission data, indoor air concentrations and daily intake values were determined for both types of rimblock products. Modeled exposure concentrations from a representative p-dichlorobenzene rimblock product were 1 order of magnitude higher than those from the alternative rimblock products due to its nearly pure composition and high sublimation rate. Lifetime exposure to p-dichlorobenzene or the subset of fragrance components with available reference dose values was not expected to lead to non-cancer-based adverse health effects based on exposure concentrations estimated using the THERdbASE model. A similar comparison of cancer-based effects was not possible since insufficient data were available for the fragrance components. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Synthetic Route of C8H14O4).

Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1) belongs to dioxole derivatives. Dioxoles, particularly fluorinated dioxoles, are used as co-monomers to make polymers that find use in forming protective coatings for chemical resistance. Although benzodioxole is not particularly important, many related compounds containing the methylenedioxyphenyl group are bioactive, and thus are found in pesticides and pharmaceuticals.Synthetic Route of C8H14O4

Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem