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Premessa: visioni mediterranee/mediterranean visions

open access: yes, 2015
O. Cirillo, R. Liberti, P. Ranzo
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ChemInform Abstract: P‐(O,P)‐O‐TRIBENZENE AND P‐(O,P)‐(O,O)‐P‐TETRABENZENE, DIELS‐ALDER OLIGOMERS OF BENZENE

Chemischer Informationsdienst, 1983
AbstractAus dem Cycloaddukt (I) von Cyclooctatetraen und Benzochinon wird das p‐(o,p)‐(o,o)‐p‐Tetrabenzol (V) hergestellt, das bei 50 °C Benzol abspaltet unter Bildung des p‐(o,p)‐o‐Tribenzols (VI).
W. GRIMME, G. REINHARDT
openaire   +1 more source

31P double-quantum solid-state NMR study of phosphoroorganic compounds with (O)P–O–P-(O), (S)P–O–P(S) and (S)P–S–P(O) unit

Solid State Nuclear Magnetic Resonance, 2006
In this work we have tested applicability of the commonly used double quantum recoupling sequence POST-C7 to study of (31)P-(31)P geometrical constraints for phosphoroorganic model compounds with different chemical shift anisotropy (CSA) and distinct molecular dynamics in the crystal lattice.
Sebastian, Olejniczak   +4 more
openaire   +2 more sources

Oxidation of p/o-Cresols to p/o-Hydroxybenzaldehydes Catalyzed by Metalloporphyrins with Molecular Oxygen

Chinese Journal of Chemical Engineering, 2012
Abstract The two novel green oxidation processes of p/o-cresols to p/o-hydroxybenzaldehydes catalyzed by metalloporphyrins in the presence of molecular oxygen were developed in this work. Among the metalloporphyrins with different central ions and substituents studied, T(p-NO2)PPCoCl and T(p-OCH3)PPFeCl presented the highest activities for p-cresol ...
Yuanbin SHE, Weijie WANG, Guojun LI
openaire   +1 more source

Mechanochemical Electrophilic Mono- or Disulfur Transfer: Construction of P(O)–S or P(O)–S–S Bonds

Organic Letters, 2022
Under mechanochemically induced conditions, a wide range of diarylphosphine oxides or H-phosphonates react with trisulfide dioxides to afford various thiophosphate derivatives in good yields. Selective S-S bond cleavage of trisulfide dioxides determined by connecting groups is proposed as the key step in the construction of P(O)-S or P(O)-S-S bonds ...
Ziwu Zhang   +8 more
openaire   +2 more sources

Metallaphotoredox-Enabled Construction of the P(O)–N Bond from Aromatic Amines and P(O)–H Compounds

Organic Letters, 2022
We have developed a dual copper/photoredox-catalyzed approach for the construction of the P(O)-N bond from commercially available aromatic amines and P(O)-H compounds. This metallaphotoredox method avoids toxic or corrosive reagents and does not require prefunctionalized substrates.
Kai-Cheng Yu   +4 more
openaire   +2 more sources

Oxidative Addition of a Phosphinite P–O Bond at Nickel

Inorganic Chemistry, 2023
Oxidative addition is an essential elementary reaction in organometallic chemistry and catalysis. While a diverse array of oxidative addition reactions has been reported to date, examples of P-O bond activation are surprisingly rare. Herein, we report the ligand-templated oxidative addition of a phosphinite P-O bond in the diphosphinito aniline ...
Quinton J. Bruch   +3 more
openaire   +2 more sources

Selective Conversion of P=O‐Bridged Rhodamines into P=O‐Rhodols: Solvatochromic Near‐Infrared Fluorophores

Chemistry – A European Journal, 2017
AbstractThe substitution of an oxygen atom in rhodols with a phosphine oxide (P=O) moiety affords P=O‐bridged rhodols as a new type of near‐infrared (NIR) fluorophore. This compound class can be readily accessed upon exposure of the corresponding rhodamines to aqueous basic conditions.
Marek Grzybowski   +2 more
openaire   +2 more sources

Cyclocarbophosphazene-Containing Tetrameric Assemblies Formed by the Mediation of P−O−P and P−O−Cu Linkages

Journal of the American Chemical Society, 2006
Cyclocarbophosphazene-containing tetrameric assemblies formed by the mediation of P-O-P and P-O-Cu linkages have been isolated and characterized.
Vadapalli, Chandrasekhar   +4 more
openaire   +2 more sources

Phosphorylation of Carboxylic Acids and Their Derivatives with P(O)–H Compounds Forming P(O)–C Bonds

Synthesis, 2020
AbstractHerein, we highlight advances in the phosphorylation of readily available carboxylic acids and their derivatives forming synthetically important P(O)–sp3C, P(O)–sp2C, and P(O)–spC bonds, with an emphasis on the results demonstrated since 2010.
Li-Biao Han   +5 more
openaire   +1 more source

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