Nitro sonium

Relative rates of alkylation of toluene and benzene using a mixture of nitro-sonium hexafluorophosphate, nitromethane (or acetonitrile) and aliphatic amine as the alkylations agent have been determined at 25 °C as follows360 1.5 (ethyl-amine), 2.5 (i-propylamine) and 3.5 (benzylamine) nothing more as yet is known about the kinetics of alkylation with these new alkylating reagents. 

Bicumene readily forms a highly colored charge-transfer complex with nitro-sonium (NO+) cation that can be isolated as a crystalline salt.194 Thus, a solution of bicumene and NO+SbClcharge-transfer bands with A = 338 and 420 nm that are indistinguishable from those of the nitrosonium complexes with other methylbenzenes (equation 62). 

Activated aromatic compounds can be nitrosated by the nitro-sonium ion,... 

In concentrated H2SO4 the blue colour disappears as fully ionised nitro-sonium hydrogen sulphate is formed ... 

Nitrosation. Like other nitrosonium salts, namely nitro-sonium tetrafluoroborate and NOPFe, nitrosylsulfuric acid is an efficient nitrosating agent. It has been reported that NOHSO4... 

The kinetics of solvolysis of complexes cis- and // a 5-[Pt(N02)2L2] (L=ammonia, pyridine, or triethylphosphine) in acetic acid-sulphuric acid mixtures have been compared with those in aqueous sulphuric acid. The mechanism is loss of a nitro-sonium ion from the protonated complex. Whether this protonation takes place at the nitrito-ligand or at the metal is not known, but definitive evidence favouring the latter could not be obtained. Platinum-carbon bond cleavage in cw-[Pt(C6H4Y)2-(PEt3)2], studied in methanol and methanol-water mixtures, takes place by electrophilic attack by a proton,... 

Under microwave irradiation, the oxidation of variety of benzylic alcohols to carbonyl compounds using clay supported ammonium nitrate (clayan) was carried out by Meshram et al. (2006). The selectivity and solvent-free conditions were the important features of this procedure. It is known that nitrates in the presence of clay produced nitrosonium ion (NO ) and therefore, this reaction may proceed via nitro-sonium intermediate. 

---