The base-promoted isomerization of aziridines to allyl amines is still an almost unknown reaction. However, the use of superbasic reagents has shown to be able to promote a regio- and stereoselective conversion of monocyclic and bicyclic sulfonyl aziridines. Moreover, the use of alkoxy substituted aziridines opens new routes to non-natural alpha- and beta-amino acids. (C) 2002 Elsevier Science Ltd. All rights reserved.
Comparative studies about the hydroamination of unactivatedalkenes and dienes catalyzed by either cationic gold(I) triphenyl phosphite complexes or silver salts were performed using sulfonamides, anilines and carbamates as nucleophiles. Gold-catalyzed reactions generally, need lower loadings than those carried out with silver salts. Simple alkenes react only with sulfonamides and weak aromatic amines
An Efficient Route to Both Enantiomers of<i>N</i>-(<i>p</i>-Tolylsulfonyl)benzenesulfonimidamide and Their Use for Asymmetric Allylic Amination of Olefins
作者:Susumu Tsushima、Yasuhiro Yamada、Tetsuo Onami、Koichiro Oshima、Michael O. Chaney、Noel D. Jones、John K. Swartzendruber
DOI:10.1246/bcsj.62.1167
日期:1989.4.15
chiral compounds (R)- and (S)-N-(p-tolylsulfonyl)benzenesulfonimidamide have been prepared efficiently from N-(p-tolylsulfonyl)benzenesulfonimidoyl chloride and both enantiomers were transformed into chiral selenium diimide reagents, (S)- and (R)-N,N′-bis[N-(p-tolylsulfonyl)benzenesulfonimidoyl]selenium diimide, respectively, for the asymmetric allylicamination of olefins. Asymmetric allylic amination
Pyrrole-Type compounds, compositions and methods for treating cancer or viral disease
申请人:Johnson A. Roy
公开号:US20070037856A1
公开(公告)日:2007-02-15
The present invention relates to novel Pyrrole-Type compounds, compositions comprising Pyrrole-Type compounds, and methods useful for treating or preventing cancer or a neoplastic disorder comprising administering a composition comprising a Pyrrole-Type compound. The compounds, compositions, and methods of the invention are also useful for inhibiting the growth of a cancer cell or neoplastic cell. The present invention also relates to novel Pyrrole-Type compounds, compositions, and methods useful for treating or preventing a viral infection. The compounds, compositions, and methods of the invention are also useful for inhibiting the replication and/or infectivity of a virus.
Allylic amination of alkenes by tosyliminoiodobenzene: manganese porphyrins as suitable catalysts
作者:J.P. Mahy、G. Bedi、P. Battioni、D. Mansuy
DOI:10.1016/s0040-4039(00)82081-x
日期:1988.1
ROM-RCM of cycloalkene-yne
作者:Tsuyoshi Kitamura、Yuichi Kuzuba、Yoshihiro Sato、Hideaki Wakamatsu、Reiko Fujita、Miwako Mori
DOI:10.1016/j.tet.2004.05.030
日期:2004.8
Ring-opening metathesis and ring-closing metathesis (ROM-RCM) of cycloalkene-yne was demonstrated using a first- or second-generation ruthenium complex. When cycloalkenes bearing the alkyne part at the C-3 position were reacted with a first-generation ruthenium-carbene complex under an atmosphere of ethylene, ROM-RCM proceeded smoothly to give skeletal reorganized products in good yields. In this reaction, cycloalkene-ynes having terminal alkyne were suitable. On the other hand, when cycloalkenes bearing the alkyne part at the C-1 position were treated with a second-generation ruthenium-carbene complex, ROM-RCM proceeded smoothly to give bicyclic compounds and/or dimeric compounds in good yields. (C) 2004 Elsevier Ltd. All rights reserved.