125155-34-2Relevant academic research and scientific papers
The Regioselectivity of Nitrone Cycloadditions to Vinyl Phosphorus Compounds
Brandi, Alberto,Cicchi, Stefano,Goti, Andrea,Pietrusiewicz, K. Michal,Wisniewski, Witold
, p. 7093 - 7104 (2007/10/02)
The 1,3-dipolar cycloadditions of nitrones 1-5 to diphenylvinylphosphine oxide (6), sulfide (7) and selenide (8) were carried out.The cycloadditions of the nitrone 3, as a model, to substituted vinylphosphorus derivatives 28-36 were also carried out with
REGIOCHEMICAL STEERING AND ASSIGNMENT IN CYCLOADDITIONS OF NITRONES TO DIPHENYLVINYLPHOSPHINE OXIDE
Pietrusiewicz, K. Michal,Brandi, Alberto
, p. 135 - 138 (2007/10/02)
In 1,3-dipolar cycloaddition of C,N-diphenylnitrone to diphenylvinylphosphine oxide ( and also to diphenylvinylphophine sulphide) the 4-substituted phosphinyl isooxazolidine is formed predominantly and in the case of a cylic nitrone the 5-substituted regioisomer prevails.Regiochemical distinctions between the isomeric phosphinyl isoxazolidines are best executed by means of (13)C NMR spectroscopy. Key words: 1,3-dipolar cycloaddition; diphenylvinylphosphine oxide, C,N-diphenyl nitrone; phosphinyloxazolidine, regioselective addition.
