The m-Nitroazoxybenzenes

Behr, Lyell C.; Alley, Earl G.; Levand, Oscar

doi:10.1021/jo01048a016

Cited by 28 publications

(24 citation statements)

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“…[35] By testing polar solvents, such as propylene carbonate the results were even improved compared to acetonitrile and the isolation of the product was realized by distillation steps. [36] The telomerization was carried out using a 1-liter reactor. The solvent and the gaseous substrates were separated by means of a flash (1) and the product (d-lactone) was separated from the liquid phase by means of thin-film distillation (2) ( Figure 16).…”

Section: Telomerizationmentioning

confidence: 99%

Homogeneously Catalyzed 1,3‐Diene Functionalization – A Success Story from Laboratory to Miniplant Scale

et al. 2018

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For many years, the efficient use of resources has been a major and permanent challenge for the chemical industry. The implementation of alternative resources such as renewables and carbon dioxide has been a subject of considerable discussion, but also the more efficient use of long known bulk chemicals is of great interest. Among them, 1,3‐dienes such as 1,3‐butadiene from the C4 cut of the naphtha cracker as well as isoprene, piperylene and cyclopentadiene from the corresponding C5 section are important substrates. These dienes are presently employed in various markets, with the greatest importance being in the production of polymers and copolymers. However, homogeneous transition metal catalysis has proven to be a versatile tool to functionalize these important 1,3‐dienes to low molecular weight fine chemicals by introducing, for example, nitrogen, oxygen or silicon. Hence, an upgraded use of the corresponding products as agrochemicals, pharmaceuticals, fragrances or special detergents is close at hand. The main approaches in the topic of homogeneous functionalization reactions of the industrially relevant 1,3‐dienes will be summarized and discussed within the present article. Besides that, novel applications including renewable 1,3‐dienes, for example β‐myrcene and β‐farnesene, as well as the application of CO2 in telomerization, will be critically discussed.

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Section: Telomerizationmentioning

confidence: 99%

Homogeneously Catalyzed 1,3‐Diene Functionalization – A Success Story from Laboratory to Miniplant Scale

et al. 2018

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“…[7] After that, many researchers have made efforts to optimize the reaction. [8][9][10][11][12] Nowadays, high conversion and selectivity to EVL are accessible, and reaction conditions have been applied to miniplant. [12,13] EVL undergoes many reactions to produce other chemicals much more relevant to industry.…”

Section: Doi: 101002/marc201800395mentioning

confidence: 99%

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO₂‐Based δ‐Lactone

Chen

Ling

et al. 2018

Macromol. Rapid Commun.

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3-Ethylidene-6-vinyltetrahydro-2H-pyran-2-one, a divinyl δ-lactone derived from CO and 1,3-butadiene, is used for the synthesis of networks with various compositions through the thiol-ene click reaction with di- and tri-thiol compounds. Thermal, mechanical, and optical properties of the networks are characterized. The networks have sharp and uniform glass transitions and show good thermal stability with T from 287 to 332 °C. Mechanical properties of the networks can be adjusted by the cross-link density; 6.18 MPa of tensile strength, 574% break elongation and 1.84 of tan δ at maximum are reached. Metal complexation makes the networks tougher due to additional cross-links. The highly homogeneous networks are transparent with average 90% transmittance of visible light, and of decent refractive indices around 1.55. Swelling-induced twist shape transformation and visible QR code under UV light is realized by pattern of the network.

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“…This has rarely been observed, possibly because of the difficulties of structural studies or because of inadequate separa tion techniques [19,20]. This has rarely been observed, possibly because of the difficulties of structural studies or because of inadequate separa tion techniques [19,20].…”

Section: A Oxidation Of Azo Compoundsmentioning

confidence: 99%

“…Although the reaction was used to prepare the two m-mononitroazoxybenzenes, presumably the re action is of more general applicability [20]. In this procedure the condensation of a nitroaldehyde with an aniline derivative in acetic acid solution and in the presence of potassium cyanide formed the 3-cyano-2-phenylindazole 1-oxide directly.…”

Section: έ Oxidation Of Indazole Oxidesmentioning

confidence: 99%

Azoxy Compounds

1971

Organic Chemistry: A Series of Monographs

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The m-Nitroazoxybenzenes

Cited by 28 publications

References 0 publications

Homogeneously Catalyzed 1,3‐Diene Functionalization – A Success Story from Laboratory to Miniplant Scale

Homogeneously Catalyzed 1,3‐Diene Functionalization – A Success Story from Laboratory to Miniplant Scale

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO₂‐Based δ‐Lactone

Azoxy Compounds

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The m-Nitroazoxybenzenes

Cited by 28 publications

References 0 publications

Homogeneously Catalyzed 1,3‐Diene Functionalization – A Success Story from Laboratory to Miniplant Scale

Homogeneously Catalyzed 1,3‐Diene Functionalization – A Success Story from Laboratory to Miniplant Scale

Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO2‐Based δ‐Lactone

Azoxy Compounds

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Synthesis and Properties of Networks Based on Thiol‐ene Chemistry Using a CO₂‐Based δ‐Lactone