Category: 2568-30-1

Phosphorus promoted SO₄^2-/TiO₂ solid acid catalyst for acetalization reaction was written by Zhong, Shaofeng;Ou, Qiongrong;Shao, Linjun. And the article was included in Journal of the Chilean Chemical Society in 2015.Name: 2-Chloromethyl-1,3-dioxolane This article mentions the following:

A novel phosphorus modified SO₄^2-/TiO₂ catalyst was synthesized by a facile coprecipitation method, followed by calcination. The catalytic performance of this novel solid acid was evaluated by acetalization. The results showed that the phosphorus was very efficient to enhance the catalytic activity of SO₄^2-/TiO₂. The solid acid owned high activity for the acetalization with the yields over 90%. Moreover, the solid acid could be reused for six times without loss of initial catalytic activities. In the experiment, the researchers used many compounds, for example, 2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1Name: 2-Chloromethyl-1,3-dioxolane).

2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1) 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.Name: 2-Chloromethyl-1,3-dioxolane

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

Phosphorus promoted SO₄^2-/TiO₂ solid acid catalyst for acetalization reaction was written by Zhong, Shaofeng;Ou, Qiongrong;Shao, Linjun. And the article was included in Journal of the Chilean Chemical Society in 2015.Name: 2-Chloromethyl-1,3-dioxolane This article mentions the following:

A novel phosphorus modified SO₄^2-/TiO₂ catalyst was synthesized by a facile coprecipitation method, followed by calcination. The catalytic performance of this novel solid acid was evaluated by acetalization. The results showed that the phosphorus was very efficient to enhance the catalytic activity of SO₄^2-/TiO₂. The solid acid owned high activity for the acetalization with the yields over 90%. Moreover, the solid acid could be reused for six times without loss of initial catalytic activities. In the experiment, the researchers used many compounds, for example, 2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1Name: 2-Chloromethyl-1,3-dioxolane).

2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1) 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.Name: 2-Chloromethyl-1,3-dioxolane

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

A systematic investigation of the ring size effects on the free radical ring-opening polymerization (rROP) of cyclic ketene acetal (CKA) using both experimental and theoretical approach was written by Reddy Mothe, Srinivasa;Tan, Jacqueline S. J.;Chennamaneni, Lohitha R.;Aidil, Farhan;Su, Yi;Kang, Hway C.;Lim, Freda C. H.;Thoniyot, Praveen. And the article was included in Journal of Polymer Science (Hoboken, NJ, United States) in 2020.SDS of cas: 2568-30-1 This article mentions the following:

Radical ring-opening polymerization (rROP) reaction of cyclic ketene acetals (CKA) is an interesting route to biodegradable polymers. Contrary to their tremendous potential, fundamental understanding of their reaction kinetics and thermodn. is still limited. We present exptl. and theor. investigations for rROP reactions of CKA to systematically elucidate the effects of monomer ring sizes on the homopolymerization We aim to provide insights on the structural-reactivity relationship of CKA by studying the thermodn. and kinetics of the forward ring-opening propagation reactions and key side reactions, namely ring-retained propagation and radical back-biting reaction leading to branching. Exptl. results show that for the CKA with smaller ring sizes, significant amount of ring-retained side products are formed when up to 90% of the monomers are converted. However, for the larger ring sizes (7 and 8 membered), almost complete ring-opening polymerization with <1% of ring-retained products are formed. D. functional theory (DFT) calculations show that kinetic effects from the collision frequency dominate in differentiating between ring-opening propagation, ring-retained propagation, and backbiting. The results corroborate well with experiments and reports in the literature. Our systematic study from the first principle and exptl. validation provide insights into CKA rROP to apply radical polymerization to generate biodegradable polymers. In the experiment, the researchers used many compounds, for example, 2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1SDS of cas: 2568-30-1).

2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1) 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.SDS of cas: 2568-30-1

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

Phosphorus promoted SO₄^2-/TiO₂ solid acid catalyst for acetalization reaction was written by Zhong, Shaofeng;Ou, Qiongrong;Shao, Linjun. And the article was included in Journal of the Chilean Chemical Society in 2015.Name: 2-Chloromethyl-1,3-dioxolane This article mentions the following:

A novel phosphorus modified SO₄^2-/TiO₂ catalyst was synthesized by a facile coprecipitation method, followed by calcination. The catalytic performance of this novel solid acid was evaluated by acetalization. The results showed that the phosphorus was very efficient to enhance the catalytic activity of SO₄^2-/TiO₂. The solid acid owned high activity for the acetalization with the yields over 90%. Moreover, the solid acid could be reused for six times without loss of initial catalytic activities. In the experiment, the researchers used many compounds, for example, 2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1Name: 2-Chloromethyl-1,3-dioxolane).

2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1) 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.Name: 2-Chloromethyl-1,3-dioxolane

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

A systematic investigation of the ring size effects on the free radical ring-opening polymerization (rROP) of cyclic ketene acetal (CKA) using both experimental and theoretical approach was written by Reddy Mothe, Srinivasa;Tan, Jacqueline S. J.;Chennamaneni, Lohitha R.;Aidil, Farhan;Su, Yi;Kang, Hway C.;Lim, Freda C. H.;Thoniyot, Praveen. And the article was included in Journal of Polymer Science (Hoboken, NJ, United States) in 2020.SDS of cas: 2568-30-1 This article mentions the following:

Radical ring-opening polymerization (rROP) reaction of cyclic ketene acetals (CKA) is an interesting route to biodegradable polymers. Contrary to their tremendous potential, fundamental understanding of their reaction kinetics and thermodn. is still limited. We present exptl. and theor. investigations for rROP reactions of CKA to systematically elucidate the effects of monomer ring sizes on the homopolymerization We aim to provide insights on the structural-reactivity relationship of CKA by studying the thermodn. and kinetics of the forward ring-opening propagation reactions and key side reactions, namely ring-retained propagation and radical back-biting reaction leading to branching. Exptl. results show that for the CKA with smaller ring sizes, significant amount of ring-retained side products are formed when up to 90% of the monomers are converted. However, for the larger ring sizes (7 and 8 membered), almost complete ring-opening polymerization with <1% of ring-retained products are formed. D. functional theory (DFT) calculations show that kinetic effects from the collision frequency dominate in differentiating between ring-opening propagation, ring-retained propagation, and backbiting. The results corroborate well with experiments and reports in the literature. Our systematic study from the first principle and exptl. validation provide insights into CKA rROP to apply radical polymerization to generate biodegradable polymers. In the experiment, the researchers used many compounds, for example, 2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1SDS of cas: 2568-30-1).

2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1) 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.SDS of cas: 2568-30-1

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

Chemical reactivity and safener activity of acetal compounds was written by Ekler, Zsigmond;Dutka, Ferenc. And the article was included in Zeitschrift fuer Naturforschung, C: Journal of Biosciences in 1991.SDS of cas: 2568-30-1 This article mentions the following:

The chem. reactivity of acetamide-type compounds as well as their safener activity against thiocarbamate herbicides change with the number of chlorine substituents in the order: nonchlorinated < monochloro < dichloro. Several compounds of another chem. group, acetal (e.g., MG-191, 2-dichloromethyl-2-methyl-1,3-dioxolane), are also effective safeners for thiocarbamate herbicides. According to growthroom studies, the safener activity of acetals also increases with increasing chlorine content up to two chlorine atoms on the same carbon. A number of differently chlorinated acetals were synthesized and their acid-catalyzed hydrolysis rate determined in order to establish a relationship between their bioactivity and chem. reactivity. The hydrolysis rate order of acetals (nonchlorinated > monochloro > dichloro) is the opposite of that found for acetamides. Thus, safener activity of acetals increases with decreasing chem. reactivity. The opposite reactivity order of acetamides and acetals can be explained by the different mechanisms of their hydrolysis. Dichloroacetals are not effective safeners without further modification. In plants, however, they may be activated by a nonhydrolytic pathway. In the experiment, the researchers used many compounds, for example, 2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1SDS of cas: 2568-30-1).

2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1) 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.SDS of cas: 2568-30-1

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

Carbon-13 NMR study of the structures of some acyclic and cyclic ketene acetals was written by Taskinen, E.;Pentikainen, M. L.. And the article was included in Tetrahedron in 1978.Computed Properties of C4H7ClO2 This article mentions the following:

A ¹³C NMR study of the spatial structures of acyclic ketene acetals showed that the most stable rotamers of (MeO)₂C:CH₂ are s-cis,s-cis and s-cis,gauche, the former being the more stable, and that the relative stability of the s-cis,s-cis form for dialkyl ketene acetals decreased with increasing bulkiness of the alkyl groups. The conformations of 5- to 8-membered cyclic ketene acetals are discussed and compared with those of the corresponding cyclic vinyl ethers and hydrocarbons. In the experiment, the researchers used many compounds, for example, 2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1Computed Properties of C4H7ClO2).

2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1) 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.Computed Properties of C4H7ClO2

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

Derivatives of cyclic acetals. I. Cyclic chloro acetals and their derivatives was written by Yasnitskii, B. G.;Sarkisyants, S. A.;Ivanyuk, E. G.. And the article was included in Zhurnal Obshchei Khimii in 1964.COA of Formula: C4H7ClO2 This article mentions the following:

The sulfonated polystyrene ion-exchange resin (KU-1) was found to be an effective agent for formation of cyclic acetals of ClCH₂CHO. Thus, heating 1 kg. 98% glycerol with 475 g. (ClCH₂CHO)_2.H₂O and 28 g. KU-1 resin 10-12 h. at 80-90° gave 96% glycerol α,β-chloroacetal, b₉ 125-30°. Similarly were prepared 60-86% cyclic acetals of ClCH₂CHO and ethylene glycol (I), propylene glycol, α-chloroglycerol (II), diethylene glycol, pentaerythritol, mannitol, and sorbitol. The cyclic acetal (IIa) of ClCH₂CHO and I added slowly to tert-BuOK in tert-BuOH and then heated 2 h. at 80-5° gave 85% III, b₉ 56-7°, d₂₀ 1.0096, n²⁰_D 1.4350. Similarly were prepared 52% IV, b. 127-8°, -, 1.4465 (at 25°); 75.2% V, b. 169-70°, 1.2346, 1.4530; and 40% VI, m. 52°. To 25 g. K in 500 g. BuOH was added 78.3 g. IIa (b₉ 52-3°, 1.2475, 1.4474) and the mixture kept 10-12 h. at 110-20° to give 62.5% VII, b₅ 47-9°, 0.9892, 1.4225, also formed from III and KOH in BuOH. Similarly was prepared 85% the ethoxy analog. The acetals based on ketene readily formed glassy polymers. The following constants were given for the cyclic chloroacetals (alc., b.p., d₂₀, and n²⁰_D given): glycerol, b₀ 125-30°, 1.3245, 1.475; propylene glycol, b₅ 45-6°, 1.1597, 1.4420; α-chloroglycerol, b₄ 82-3°, 1.3498, 1.4750; diethylene glycol, b₅ 115-18° (m. 45-6°), 1.1670, 1.4562; pentaerythritol, – (m. 92°), -, -; mannitol, b_·1-0.2 195-200°, 1.4473, 1.5048; sorbitol, b_0.05 219-20°, 1.4484, 1.5096. In the experiment, the researchers used many compounds, for example, 2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1COA of Formula: C4H7ClO2).

2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1) 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.COA of Formula: C4H7ClO2

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

Chemical reactivity and safener activity of acetal compounds was written by Ekler, Zsigmond;Dutka, Ferenc. And the article was included in Zeitschrift fuer Naturforschung, C: Journal of Biosciences in 1991.SDS of cas: 2568-30-1 This article mentions the following:

The chem. reactivity of acetamide-type compounds as well as their safener activity against thiocarbamate herbicides change with the number of chlorine substituents in the order: nonchlorinated < monochloro < dichloro. Several compounds of another chem. group, acetal (e.g., MG-191, 2-dichloromethyl-2-methyl-1,3-dioxolane), are also effective safeners for thiocarbamate herbicides. According to growthroom studies, the safener activity of acetals also increases with increasing chlorine content up to two chlorine atoms on the same carbon. A number of differently chlorinated acetals were synthesized and their acid-catalyzed hydrolysis rate determined in order to establish a relationship between their bioactivity and chem. reactivity. The hydrolysis rate order of acetals (nonchlorinated > monochloro > dichloro) is the opposite of that found for acetamides. Thus, safener activity of acetals increases with decreasing chem. reactivity. The opposite reactivity order of acetamides and acetals can be explained by the different mechanisms of their hydrolysis. Dichloroacetals are not effective safeners without further modification. In plants, however, they may be activated by a nonhydrolytic pathway. In the experiment, the researchers used many compounds, for example, 2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1SDS of cas: 2568-30-1).

2-Chloromethyl-1,3-dioxolane (cas: 2568-30-1) 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.SDS of cas: 2568-30-1

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