Definition of Phosphonium. Meaning of Phosphonium. Synonyms of Phosphonium

- In chemistry, the term phosphonium (more obscurely: phosphinium) describes polyatomic cations with the chemical formula PR+ 4 (where R is a hydrogen or...
- In organic chemistry, phosphonium coupling is a cross-coupling reaction for organic synthesis. It is a mild, efficient, chemoselective and versatile methodology...
- Phosphonium iodide is a chemical compound with the formula PH 4I. It is an example of a salt containing an unsubstituted phosphonium cation (PH+ 4). Phosphonium...
- olefination is a chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide called a Wittig reagent. Wittig reactions are most commonly used...
- Consequently, the carbon anion is trigonal pyramidal.[citation needed] Phosphonium ylides are used in the Wittig reaction, a method used to convert ketones...
- to be sold commercially. Wittig reagents are usually prepared from a phosphonium salt, which is in turn prepared by the quaternization of triphenylphosphine...
- dialkylthiophosphinate ester.: 55  Compounds with the formula [PR4+]X− comprise the phosphonium salts. These species are tetrahedral phosphorus(V) compounds. From the...
- group that bears no hydrogen atom, such as a quaternary ammonium or phosphonium cation (generally: onium ions), and with a negatively charged functional...
- (1 - A phosphite) with the electrophilic alkyl halide (2) to give a phosphonium salt as an intermediate (3). These intermediates are occasionally stable...
- Decyl(triphenyl)phosphonium (DTPP) is the organophosphorus cation with the formula C10H21P(C6H5)3+. It is a lipophilic quaternary phosphonium cation. It forms...