Intramolecular imine cross-coupling in dibenzylidine sulfamides: Synthesis of unsymmetrical 1,2-diaryl ethanediamines
作者:Sunil V. Pansare、Mahesh G. Malusare
DOI:10.1016/0040-4039(96)00406-6
日期:1996.4
Intramolecular reductive cross-coupling of unsymmetrical dibenzylidene sulfamides generates the corresponding cyclic sulfamides in good yield. These intermediates are readily converted to the free, unsymmetrical1,2-diarylethanediamines.
Oxidation of 1,2,5-Thiadiazolidine 1,1-Dioxides: Synthesis of Diaryl 1,2-Diketones
作者:Sunil Pansare、Mahesh Malusare
DOI:10.1055/s-1997-3250
日期:1997.6
Treatment of 3,4-diaryl 1,2,5-thiadiazolidine 1,1-dioxides with selenium dioxide followed by hydrolysis of the crude oxidation product furnishes the corresponding diaryl 1,2-diketones. Symmetrical and unsymmetrical diketones are readily prepared by this method.