Month: November 2023

Yang, Shuijin et al. published their research in Xiyou Jinshu Cailiao Yu Gongcheng in 2007 | CAS: 126-39-6

2-Ethyl-2-methyl-1,3-dioxolane (cas: 126-39-6) 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.Category: dioxole

Synthesis of acetals or ketals via acetalization or ketalization of aldehydes or ketones with glycols using titania-supported molybdotungstophosphoric acid (H3Mo6PW6O40) as catalyst was written by Yang, Shuijin;Tong, Wenlong. And the article was included in Xiyou Jinshu Cailiao Yu Gongcheng in 2007.Category: dioxole This article mentions the following:

A new environmentally friendly catalyst, H3PW6Mo6O40/TiO2 is reported here. Optimized reaction conditions involved: mass ratio of m(TiO2):m(H3PW6Mo6O40) 1/2.0, volume of water 30 mL, the reflux reaction time 2 h, activated temperature 150°. H3PW6Mo6O40/TiO2 was used as catalyst in the synthesis of acetals and ketals, namely cyclohexanone ethylene ketal (i.e., 1,4-dioxaspiro[4.5]decane), cyclohexanone 1,2-propanediol ketal, butanone ethylene ketal, butanone 1,2-propanediol ketal, 2-phenyl-1,3-dioxolane, 4-methyl-2-phenyl-1,3-dioxolane, 2-propyl-1,3-dioxolane, 4-methyl-2-propyl-1,3-dioxolane. Effects of n(aldehyde/ketone):n(glycol), catalyst dosage and reaction time on yield were investigated. Optimized reaction conditions were: n(aldehyde/ketone):n(glycol) = 1.0:1.4; mass fraction of catalyst to reactants, 0.8%; reaction time, 1.0 h and cyclohexane as water-stripping reagent, 10 mL. Under these conditions, yield of cyclohexanone ethylene ketal, cyclohexanone 1,2-propanediol ketal, butanone ethylene ketal, butanone 1,2-propanediol ketal, 2-phenyl-1,3-dioxolane, 4-methyl-2-phenyl-1,3-dioxolane, 2-propyl-1,3-dioxolane and 4-methyl-2-propyl-1,3-dioxolane were 81.3%, 86.9%, 53.0%, 66.9%, 72.3%, 79.0%, 66.8%, 76.9% resp. In the experiment, the researchers used many compounds, for example, 2-Ethyl-2-methyl-1,3-dioxolane (cas: 126-39-6Category: dioxole).

2-Ethyl-2-methyl-1,3-dioxolane (cas: 126-39-6) 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.Category: dioxole

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

Al-Sulami, Ahlam et al. published their research in Journal of Polymer Science (Hoboken, NJ, United States) in 2020 | CAS: 100-79-8

(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol (cas: 100-79-8) 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.Quality Control of (2,2-Dimethyl-1,3-dioxolan-4-yl)methanol

In-chain functionalized poly(ε-caprolactone): A valuable precursor towards the synthesis of 3-miktoarm star containing hyperbranched polyethylene was written by Al-Sulami, Ahlam;Ladelta, Viko;Hadjichristidis, Nikos. And the article was included in Journal of Polymer Science (Hoboken, NJ, United States) in 2020.Quality Control of (2,2-Dimethyl-1,3-dioxolan-4-yl)methanol This article mentions the following:

Well-defined 3-miktoarm star copolymer 3μ-HBPE(PCL)2 (HBPE: hyperbranched polyethylene, PCL: poly[ε-caprolactone]) was synthesized by combining chain walking polymerization (CWP), ring-opening polymerization (ROP), and “click” chem. The synthetic methodol. includes the following steps: (a) synthesis of in-chain ethynyl-functionalized PCL, (PCL)2-C CH by ROP of ε-caprolactone (CL) with ethylene-functionalized solketal (3-[prop-2-yn-1-yloxy] propane-1,2-diol) as difunctional initiator and phosphazene superbase t-BuP2 as catalyst; (b) synthesis of azido-functionalized hyperbranched PE (HBPE-N3) by CWP of ethylene with α-diimine-Pd(II) catalyst, followed by quenching with excess 4-vinylbenzyl chloride and transformation of chloro to azide group with sodium azide; and (c) “clicking” HBPE-N3 and (PCL)2-C CH using copper(I)-catalyzed azide-alkyne cycloaddition 1H NMR spectroscopy, gel permeation chromatog., Fourier-transform IR spectroscopy, and differential scanning calorimetry were used to determine the mol. characteristics and thermal properties of the polymers. Self-assembly behavior of 3μ-HBPE (PCL)2 in petroleum ether, a selective solvent for HBPE, was investigated by dynamic light scattering, at. force microscopy, and transmission electron microscopy. The in-chain alkyne-functionalized poly(ε-caprolactone) is a valuable precursor for PCL-based complex macromol. architectures. In the experiment, the researchers used many compounds, for example, (2,2-Dimethyl-1,3-dioxolan-4-yl)methanol (cas: 100-79-8Quality Control of (2,2-Dimethyl-1,3-dioxolan-4-yl)methanol).

(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol (cas: 100-79-8) 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.Quality Control of (2,2-Dimethyl-1,3-dioxolan-4-yl)methanol

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