Phosphonates, sulphone

Mirious chiral carboxylic, phosphonic. sulphonic carhamoylatctl quinine and quinidinc acids including NSAIDs, a-aryloxy carboxylic acids, acencK oumarol, A-derivatized amino acids... 

Free sugars on treatment with phosphonate sulphones give... 

A differential vapour-pressure technique has been used to determine the molecular weights of phosphonic and phosphinic acids in 95% ethanol. Cryoscopic and n.m.r. studies have been made on solutions of phosphinic acids in sulphuric acid and oleum. Mass spectrometry has indicated the ready formation of phosphinylium ions after electron bombardment of phosphonic and phosphinic acids and their derivatives. However, the cryoscopic results in sulphuric acid indicated that reaction did not proceed beyond protonation, and the n.m.r. study on oleum solutions suggested that sulphonation occurred. 

Poly (vinyl sulphonic acid) Poly (vinyl phosphonic acid) Some typical anionic polyelectrolytes. ... 

Alkoxylated polysiloxanes are a relatively new class of dyebath lubricants. They have practically no substantivity for the substrate, yet combine adequate lubrication with water solubility and easy rinsability. If the silicones contain primary hydroxy groups, these can be modified by esterification, phosphation, phosphonation, sulphation, sulphonation or carboxylation. These anionic substituents confer substantivity for various substrates without losing rinsability. Anionic organic sulphates and sulphonates probably offer the best overall properties for dyebath lubricants, whilst other types can be more suitable for selected applications [464]. 

From (IV), chlorosulphonic acid (V) and benzene sulphonic acid (VI) are obtained by the replacement of H by Cl and C6H5 respectively Arguing along similar lines, (VIII) is phosphonic acid and (IX) is fluorophosphonic acid, hence (I) is diethyl chlorophosphonate. Th ... 

Sulphuric and sulphurous acids are dibasic. Sulphonic and sulphinic acids are monobasic. With them we are at the end of the series of acids generated by replacing OH by H. In the phosphorus series the basicity is always one unit higher, so that having passed from phosphoric and phosphorous adds, which are tribasic, to phosphonic and phosphinic acids, which are dibasic, we can proceed a further step to two monobasic acids, for which the recommended names are very naturally phosphonous and phosphinous acids ... 

Generically phosphin- fits in with the parent phosphine, and phosphon with phosphine oxide or phosphone (cf. sulphone). 

Organyl tellurolate anions effect 1,4-additions to acetylenes bearing electron-withdrawing groups such as acetylenic ketones, aldehydes, esters, diacetylenic ketones, " as well as acetylenic phosphonates and sulphones giving 2-substituted vinyl tellurides with Z configuration. 

Title Use of Sulphonic, Phosphonic and Phosphoric Acids as Dopants for Polyaniline and for Conductive Polyaniline-Based Composite Materials... 

Alpha-halo ketone Alpha-dicarbonyl Sulphonate ester Phosphonate ester... 

Proteinogenic tmd non-proteinogenic u- and p-amino acid.s. sulphonic acids, and phosphonic acids... 

Fig. 7 Phosphate, phosphonate, phosphinate, sulphate and sulphonate anions...

Scheme 8 Direct alkylation via sulphonates, phosphonates and phosphinates...

Schuster M, Rager T, Noda A, Kreuer KD, Majer J (2005) About the choice of the protogenic group in PEM separator materials for intermediate temperature, low humidity operation a critical comparison of sulphonic acid, phosphonic acid and imidazole functionalized model compounds. Fuel Cells 5 355-365... 

Not unexpectedly, marine crankcase oils are sometimes contaminated with water, which is normally removed by the lubricating oil centrifuge. To assist further in protecting against rusting, inhibitors such as alkyl sulphonates, phosphonates, amines and alkyl succinic acids/esters can be added. They work by forming a hydrophobic film on the metal surface but must be selected with due regard to the other additives present. 

---