The oxidative desulphurisation and deselenation at pentacovalent phosphorus catalysed by metalloporphyrins

✍ Scribed by R.Stephen Davidson; Martin D. Walker; Raj K. Bhardwaj

• Book ID: 104227693
• Publisher: Elsevier Science
• Year: 1987
• Tongue: French
• Weight: 235 KB
• Volume: 28
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)96262-2

✦ Synopsis

Manganese (III) mesotetraphenylporphyrin chloride in the presence of tetrabutylammonium periodate has been shown to aid the oxidative desulphurisation and deselenation at pentacovalent phosphorus: the desulphurisation reaction is further aided by the addition of imidazole. There is a variety of chemical reagents for effecting oxidative desulphurisation at pentacovalent FhOsFhOrus (e.g. permanganate in pyridine', hydrogen peroxide2, nitric acid 3 , iodine in dimethyl sulphoxide4, mchloroperbenzoic acid5, photosensitised oxidation61 as well as enzymic processes. Of recent interest is the use of enzyme mimics to carry out the (-hydroxylation7, heteroatom oxidation7, epoxidation of olefins 8,9,10,11 and rearrangement reactions involving 1,2-shifts' reactions catalysed by