87352-10-1Relevant articles and documents
Thiones as superdipolarophiles. Rates and equilibria of nitrone cycloadditions to thioketones
Huisgen, Rolf,Fisera, Lubor,Giera, Henry,Sustmann, Reiner
, p. 9671 - 9678 (2007/10/02)
1,3-Dipolar cycloadditions of N-methyl-C,C-diphenylnitrone (15) and N-methyl-C-phenylnitrone (16) with aliphatic thioketones are equilibrium reactions. The 1,4,2-oxathiazolidines were characterized and their dissociation constants measured by 1
Benzaldehyde Oxime as a 1,3-Dipole Chameleon
Padwa, Albert,Dent, William,Yeske, Philip E.
, p. 3944 - 3946 (2007/10/02)
Reaction of the iminium salt derived from benzaldehyde oxime and (trimethylsilyl)methyl triflate with cesium fluoride in the presence of electron-dificient alkenes gives rise to azomethine ylide cycloadducts.In sharp contrast, reaction of the salt with alkynes produces dipolar cycloadducts derived from nitrones.