Day: November 22, 2022

Method for Predicting Odor Intensity of Perfumery Raw Materials Using Dose-Response Curve Database was written by Wakayama, Hideki;Sakasai, Mitsuyoshi;Yoshikawa, Keiichi;Inoue, Michiaki. And the article was included in Industrial & Engineering Chemistry Research in 2019.Electric Literature of C8H14O4 The following contents are mentioned in the article:

The main purpose of this study is to facilitate fragrance development on the basis of scientific knowledge. To this end, data on 314 perfumery raw materials (PRMs) showing the relationship between PRM odor intensity and gas concentration were obtained, and a calculation model for the data was then developed with the following features: (1) maximum PRM coverage, (2) calculating values implying odor intensity from only arbitrary gas concentration, and (3) estimating odor intensity from the calculated values directly and easily. To verify the prediction accuracy of this model, the predicted odor intensity was compared with the evaluated value for both single component and a mixture, and the same degree of root mean square error (RMSE) was confirmed. RMSE in the single component was 6.22 while that in the mixture was 6.69. Thus, the odor intensity of a PRM or mixture can be predicted from arbitrary gas concentrations This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Electric Literature 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.Electric Literature of C8H14O4

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

Synthesis of fructone over phosphotungstic acid – silica catalysts prepared by sol – gel method was written by Zhang, Fumin;Zhong, Yijun;Zhu, Weidong;Wang, Jun. And the article was included in Shiyou Huagong in 2007.Quality Control of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate The following contents are mentioned in the article:

A series of phosphotungstic acid-silica gel catalysts (PW/SG) were prepared by sol – gel method. The catalytic performances of the catalysts were investigated in synthesis of fructone y liquid phase acetalization of Et acetoacetate (I) with ethylene glycol (EG) in a batch reactor. 40% PW/SG catalyst exhibits the best catalytic performance among these catalysts. The optimal reaction conditions are as follows: molar ratio I/EG 1: 1.2, catalyst mass fraction in reactants 0.36%, volume fraction of cyclohexane as water removal agent in reaction medium 30%, reaction temperature 383 K and reaction time 90 min. In this case, conversion of I can reach 95.5% and selectivity to fructone is ≥97%. Catalyst stability experiment show that the high catalytic activity of 40% PW/SG can be maintained and high conversion of 95.0% can be kept even after reusing the catalyst for 5 times. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Quality Control 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.Quality Control of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate

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

Phosphoramidate pronucleotides of cytostatic 6-aryl-7-deazapurine ribonucleosides was written by Perlikova, Pavla;Pohl, Radek;Votruba, Ivan;Shih, Robert;Birkus, Gabriel;Cihlar, Tomas;Hocek, Michal. And the article was included in Bioorganic & Medicinal Chemistry in 2011.HPLC of Formula: 158078-04-7 The following contents are mentioned in the article:

A series of O-Ph methyl-, ethyl- and benzylalanyl phosphoramidate pronucleotides, e.g. I, derived from cytostatic 6-aryl-7-deazapurine ribonucleosides were prepared by the cross-coupling reactions of the 2′,3′-isopropylidene protected 6-chloro-7-deazapurine ribonucleoside phosphoramidates with (het)arylboronic acids or -stannanes followed by deprotection. Most of the prepared prodrugs exerted in vitro cytostatic effects against both solid tumor and lymphoid cancer cells within low micromolar range of concentrations These activities were in general weaker or comparable to the activities of the parent nucleosides. Addnl. testing of selected prodrugs suggests that the lack of activity improvement over parent nucleosides is not due to the lack of permeability or inefficient catabolism of alanyl-ester by intracellular hydrolases. More likely, active efflux of prodrugs may play a role in their weak cytotoxic activity. This study involved multiple reactions and reactants, such as ((3aR,4R,6R,6aR)-6-(4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methanol (cas: 158078-04-7HPLC of Formula: 158078-04-7).

((3aR,4R,6R,6aR)-6-(4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methanol (cas: 158078-04-7) 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.HPLC of Formula: 158078-04-7

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

Potent DNA-directed alkylating agents: Synthesis and biological activity of phenyl N-mustard-quinoline conjugates having a urea or hydrazinecarboxamide linker was written by Kakadiya, Rajesh;Dong, Huajin;Kumar, Amit;Narsinh, Dodia;Zhang, Xiuguo;Chou, Ting-Chao;Lee, Te-Chang;Shah, Anamik;Su, Tsann-Long. And the article was included in Bioorganic & Medicinal Chemistry in 2010.Safety of 8-Chloro-6-methyl-[1,3]dioxolo[4,5-g]quinoline The following contents are mentioned in the article:

A series of N-mustard-quinoline conjugates bearing a urea or hydrazinecarboxamide linker was synthesized for antitumor evaluation. The in vitro cytotoxicity studies revealed that compounds with hydrazinecarboxamide linkers were generally more cytotoxic than the corresponding urea counterparts in inhibiting human lymphoblastic leukemia and various solid tumor cell growths in culture. The therapeutic efficacy against human tumor xenografts in animal model was studied. It was shown that complete tumor remission in nude mice bearing human breast carcinoma MX-1 xenograft by 17a, i and 18c, d was achieved. In the present study, it was revealed that both linkers are able to lower the chem. reactive N-mustard pharmacophore and thus the newly synthesized conjugates possess a long half-life in rat plasma. Moreover, the new N-mustard derivatives are able to induce DNA crosslinking either by modified comet assay or by alk. agarose gel shift assay. This study involved multiple reactions and reactants, such as 8-Chloro-6-methyl-[1,3]dioxolo[4,5-g]quinoline (cas: 50593-65-2Safety of 8-Chloro-6-methyl-[1,3]dioxolo[4,5-g]quinoline).

8-Chloro-6-methyl-[1,3]dioxolo[4,5-g]quinoline (cas: 50593-65-2) 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.Safety of 8-Chloro-6-methyl-[1,3]dioxolo[4,5-g]quinoline

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

Facile synthesis of fructone from ethyl acetoacetate and ethylene glycol catalyzed by SO₃H-functionalized Bronsted acidic ionic liquids was written by Liu, Yong;Wang, Yi-Tao;Liu, Tao;Tao, Duan-Jian. And the article was included in RSC Advances in 2014.Electric Literature of C8H14O4 The following contents are mentioned in the article:

SO₃H-functionalized Bronsted acidic ionic liquids (BAILs) were synthesized and utilized as highly efficient catalysts for the production of fructone via the acetalization reaction of Et acetoacetate with ethylene glycol. In comparison with conventional H₂SO₄ and cation exchange resins, the BAILs such as triethyl(4-sulfobutyl)ammonium hydrogen sulfate ([BSEt₃N][HSO₄]) of strong acidity exhibited excellent catalytic activity. The effects of various parameters such as different BAILs, reaction temperature, catalyst dosage, and molar ratio of the reactants on the conversion of Et acetoacetate were investigated in detail. The exptl. results indicated that the catalytic performance of BAILs were closely related to their Hammett acidities. Moreover, it was found that [BSEt₃N][HSO₄] could be also recovered easily and used repetitively six times without obvious decline in activity and quantity. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Electric Literature 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. Dioxole functionalized metal-organic frameworks have also been recently reported.Electric Literature of C8H14O4

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

Acetalization of ethyl acetoacetate with glycol over silica gel supported phosphotungstic acid catalyst was written by Yu, Qingyue;Zhou, Zhiwei;Wu, Wenliang;Yun, Zhi. And the article was included in Huaxue Fanying Gongcheng Yu Gongyi in 2009.Application In Synthesis of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate The following contents are mentioned in the article:

A series catalysts of phosphotungstic acid (PW) supported on silica gel were prepared by sol-gel method and characterized by means of X-ray diffraction (XRD), low temperature adsorption and desorption of N₂, and temperature-programmed desorption of ammonia (NH₃-TPD). The catalytic performance was determined by acetalization of Et acetoacetate with glycol. The results showed that when the loading mass fraction of PW was 40%, PW was highly dispersed on silica gel, the pores were regular, the surface area was 187 m²/g and the acid amount was high, and the conversion of Et acetoacetate and the selectivity of fructone were 96.8% and 98.5%, resp., under the conditions of the molar ratio of Et acetoacetate to glycol 1:1.3, reaction temperature 353 K and reaction time 30 min. The stability tests showed that the conversion of Et acetoacetate and the selectivity of fructone were 93.1% and 98.0%, resp., after the catalyst was used 15 times. 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

Characterization of supported heteropoly acid (salt) and its catalytic behavior in synthesis of fructone was written by Zhang, Fumin;Yuan, Chaoshu;Ren, Xiaoqian;Wang, Jun. And the article was included in Huagong Xuebao (Chinese Edition) in 2006.Safety of Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate The following contents are mentioned in the article:

A series of 12-phosphotungstic acid (PW) and its cesium salt catalysts immobilized on various supports such as ultra-stable Y zeolite (USY), dealuminated USY (DUSY), SiO₂ and SBA-15 were prepared Their sp. surface area and acid strength were measured, and their catalytic performance was evaluated in the synthesis of fructone by acetalization of Et acetoacetate with ethylene glycol. The high catalytic activity was found over the prepared supported heteropoly compound catalysts in this reaction. However, for the supported PW catalysts, a severe leaching of heteropoly anions into water was observed, leading to their poor reusability. By contrast, the Cs salt of PW catalyst supported on DUSY exhibited very high catalytic activity with high water tolerance and reusability. The conversion of Et acetoacetate of 98.7% with the selectivity of fructone above 97% could be obtained over 30% Cs_2.5H_0.5 PW/DUSY under the optimal reaction 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 12-tungstophosphoric acid/SBA-15 catalyst by in-situ method and its catalytic performance was written by Liu, Shi-rong;Guo, Hong-qi;Mao, Ming-fu;Ni, Zhong-bin;Chen, Ming-qing. And the article was included in Jingxi Huagong in 2013.Formula: C8H14O4 The following contents are mentioned in the article:

The catalysts of 12-tungstophosphoric acid/SBA-15 with different loading capacity were prepared by in-situ method. The structure and properties of the catalysts were characterized by means of FTIR spectroscopy, TEM, X-ray diffraction, ³¹PNMR and N₂ adsorption-desorption. The results showed that, when the loading capacity was within the lower range, the catalysts retained the long range order structure of the SBA-15 material. With the increase of loading capacity, the aperture and sp. surface area decreased with the increase of loading capacity. However, the structure of SBA-15 was destroyed in some degree when the loading capacity was up to 33.3%. The 12-tungstophosphoric acid highly dispersed in the hole of SBA-15 still kept the Keggin structure, and had certain chem. interaction with the surface hydroxy of SBA-15. The catalytic properties in the synthesis of fructone showed that HPW/SBA-15 catalyst had high catalytic activity and selectivity, and showed excellent reusability. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Formula: 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.Formula: C8H14O4

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

Synthesis of acetals and ketals on H₃PW₁₂O₄₀/MCM-48 catalyst was written by Wang, Min;Yang, Shuijin. And the article was included in Shiyou Huagong in 2006.Related Products of 6413-10-1 The following contents are mentioned in the article:

A novel environmental friendly catalyst, H₃PW₁₂O₄₀/MCM-48, was prepared by impregnation. Activities of the catalyst in synthesis of a series of acetals and ketals from acetacetic ester, cyclohexanone, butanone, benzaldehyde, butyraldehyde and diat. alc. were investigated. The catalysts were characterized by means of XRD, FTIR and ¹H NMR. H₃PW₁₂O₄₀/MCM-48 with good mesopores is an excellent catalyst for the above syntheses. The Keggin structure of H₃PW₁₂O₄₀ keeps unchanged after being impregnated onto surface of the mol. sieve support and its dispersity on latter is promising. Effects of n (aldehyde (ketone)): n (diat. alc.), catalyst dosage and reaction time on yields of the products were studied. Under optimal conditions: mole ratio of aldehyde or ketone to glycol 1: 1.4, mass ratio of catalyst used to reactants 0.4% and reaction time 1.0 h, yields of acetals or ketals can reach 80.6% ∼94.2%. This study involved multiple reactions and reactants, such as Ethyl 2-(2-methyl-1,3-dioxolan-2-yl)acetate (cas: 6413-10-1Related Products 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.Related Products of 6413-10-1

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

Activation Of 1,3-Dioxolane By A Protic Ionic Liquid In Aqueous Media: A Green Strategy For The Selective Hydrolytic Cleavage Of Acetals and Ketals was written by Majumdar, Swapan;Chakraborty, Mithun;Maiti, Dilip K.;Chowdhury, Sandip;Hossain, Jewel. And the article was included in RSC Advances in 2014.Product Details of 6413-10-1 The following contents are mentioned in the article:

A convenient method for the deprotection of acetals and ketals was achieved using an imidazolium based protic ionic liquid as a catalyst in aqueous medium via the dual activation of dioxolane. The protocol is highly efficient towards the deprotection of acyclic and cyclic acetals, ketals, benzylidene acetals and tetrahydropyranyl (THP) ethers, giving excellent yields. Functional groups such as tert-Bu ester, tert-Bu di-Me silyl (TBDMS), N-tert-butyloxycarbonyl (N-Boc), and double bond, mesyl, nitro, and glycosidic linkage were tolerated under the benign reaction conditions. Selective deprotection of the 5,6-isopropylidene moiety in 1,2:5,6-di-O-isopropylidene hexose and 3,5-cyclohexylidene moiety in pentose derivatives proceeded smoothly without affecting the 1,2-protected group. The attractive features of this new protocol are the use of mild reaction conditions, tolerance of a wide range of functional groups, use of relatively non-toxic solvent systems and recyclability of the ionic liquid catalyst. 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