70134-00-8Relevant academic research and scientific papers
Generation of Azomethine Ylides via the Desilylation Reaction of Immonium Salts
Padwa, Albert,Haffmanns, Gunter,Tomas, Miguel
, p. 3314 - 3322 (2007/10/02)
Generation of intermediates having azomethine ylide reactivity was achieved by the reaction of several ethanol or thioimidate derivatives with methyl iodide followed by treatment of the resulting imine with (trimethylsilyl)methyl triflate.Desilylation of
NEW APPLICATIONS OF DIPOLAR CYCLOADDITION CHEMISTRY TOWARD THE SYNTHESIS OF HETEROCYCLES
Padwa, Albert,Chen, Yon-Yih,Koehler, Konrad F.,Tomas, Miguel
, p. 811 - 818 (2007/10/02)
A new method for the preparation of β-lactams has been developed.The protocol involves 1,3-dipolar cycloaddition of nitrones with nitro substituted alkenes followed by a subsequent reorganization of the resulting 5-nitroisoxazolidine isomer.The utilizatio
α,β-UNSATURATED THIO COMPOUNDS. XIII.* HYDROTHIOLYSIS OF β-HETERO-SUBSTITUTED α,β-UNSATURATED IMMONIUM SALTS AT THE C=N(+) BOND - A GENERAL APPROACH TO THE SYNTHESIS OF FUNCTIONALLY SUBSTITUTED THIOKETONES
Usov, V. A.,Timokhina, L. V.,Zhagun, V. A.,Sidorkin, V. F.,Voronkov, M. G.
, p. 1623 - 1628 (2007/10/02)
The hydrothiolysis of immonium salts containing the Y-C=C-C=N(+) group takes place at the C=N(+) bond and not at the C-Y bond.This is consistent with the results from quantum-chemical calculations.On this basis a general approach was formulated to the synthesis of new types of organic sulfur compounds, i.e. β-alkoxy-, β-alkylthio-, and β-halogen-substituted α,β-unsaturated thioketones of the Y-C=C-C=S (Y=RO, RS, Hlg) type.
