A study of the functional group compatibility of sulfoximination methods
作者:Sylvaine Cren、Taryn C. Kinahan、Catharine L. Skinner、Heather Tye
DOI:10.1016/s0040-4039(02)00378-7
日期:2002.4
range of sulfoxides possessing functionalised side-chains using mesitylene sulfonyl hydroxylamine or iminoiodane reagents is discussed. The use of iminoiodane reagents possessing removable protecting groups (p-nosyl and Ses) is reported along with conditions for the deprotection of the sulfoximine adducts.
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Alkoxyphenyliminoiodanes: Highly Efficient Reagents for the Catalytic Aziridination of Alkenes and the Metal‐Free Amination of Organic Substrates
作者:Akira Yoshimura、Victor N. Nemykin、Viktor V. Zhdankin
DOI:10.1002/chem.201102265
日期:2011.9.12
Owing to the presence of the ortho‐substituent on the phenyl ring, these new iminoiodanes have excellent solubility in organic solvents and are efficient reagents for the catalytic aziridination of alkenes or the metal‐free tosylamination of organic substrates (see scheme, Ts=tosyl).
An efficient preparation of β-dimethylaminovinyl sulfone and sulfoximide, and investigation of their reactivity as dipolarophiles
作者:Nela Peša、Chris J. Welch、Andrew N. Boa
DOI:10.1002/jhet.5570420420
日期:2005.5
N'-dimethylamino)ethenyl)-S-phenyl-N-(p-tolylsulfonyl) sulfoximide in high yields is described. A reversal in regioselectivity was observed when the β-dimethylaminovinylsulfone was employed as a dipolarophile in cycloadditions with nitrile oxides. The sulfone gives rise mainly to 4-substituted isoxazoles, after elimination of dimethyl amine. In comparison, phenyl vinyl sulfone cycloadds to give 5-substituted isoxazolines
Reaction of sulfonamides with iodosobenzene leads to phenyliodinanes. A new catalysis reaction of the decomposition of these products in the presence of sulfoxides that allows the smooth synthesis of sulfoximines has been evidenced and studied: copper(II) salts were used to prepare compounds 4 a-j and 5 b, d, f, j, k from the corresponding, easily prepared, sulfoxides. The reactions proceed with retention
Conjugate addition of amines to vinyl sulfoximides: a general method for the synthesis of β-amino sulfoximides
作者:Heather Tye
DOI:10.1016/s0040-4039(02)02326-2
日期:2002.12
The synthesis of a range of β-amino sulfoximide derivatives is described. The conjugate addition of simple amines or amino acids to N-tosyl phenyl vinyl sulfoximide was achieved in moderate to good yield (41–95%). Electron poor nucleophiles such as tosyl amide or benzyl carbamate were found to be unreactive under analogous conditions.