146983-84-8Relevant articles and documents
Photochemistry of N-phthaloyl derivatives of methionine
Griesbeck, Axel G.,Mauder, Harald,Mueller, Ingrid,Peters, Eva-Maria,Peters, Karl,Von Schnering, Hans Georg
, p. 453 - 456 (1993)
Photocarboxylation of N-phthaloyl derivatives of methionine sulfoxide 1b and methionine sulfone 1c was observed in acetone as the major reaction. For 1a a fast electron transfer initiated cyclization which leads to the bicyclization product 3 (X-ray structure)was observed in the sensitized photolysis. Direct photolysis of 1a leads preferentially to the tricylic product 4 and the decarboxylation product 5. The methionine methyl ester 6a-c showed electon transfer initiated cyclization (for 6a) and disproportionation (for 6b), whereas 6c proved to be photostable.
Oxidations catalysed by rhenium(V) oxides 2. Clean sulfide oxidation by urea-hydrogen peroxide
Gunaratne, H. Q. Nimal,McKervey, M. Anthony,Feutren, Stephanie,Finlay, James,Boyd, John
, p. 5655 - 5658 (2007/10/03)
Three rhenium(V) oxo phosphine complexes and methyltrioxorhenium have been used as catalysts for oxidation of sulfides to sulfoxides with urea- hydrogen peroxide as oxidant in acetonitrile; partial enantioselective oxidation of methylphenyl sulfide was ob
