Direct <i>N</i>-H/<i>N</i>-Me Aziridination of Unactivated Olefins Using <i>O</i>-(Sulfonyl)hydroxylamines as Aminating Agents
作者:Shekh Sabir、Chandra Bhan Pandey、Ajay K. Yadav、Bhoopendra Tiwari、Jawahar L. Jat
DOI:10.1021/acs.joc.8b01673
日期:2018.10.5
methods are devoted to their activated counterparts. Herein, we have developed a highly efficient Rh(II)-catalyzed method for the direct preparation of unactivated aziridines from olefins using O-(sulfonyl)hydroxylamines as the aminating agent. The reactions proceed with a high stereospecificity.
Metal- and Additive-Free Intermolecular Aziridination of Olefins Using N-Boc-O-tosylhydroxylamine
作者:Jawahar L. Jat、Bhoopendra Tiwari、Dinesh Chandra、Puneet Kumar、Vikram Singh
DOI:10.1055/a-1879-7974
日期:2022.10
A metal and additive-free stereospecific direct N-H and N-Me aziridination of inactivated olefins is disclosed using N-Boc-O-tosylhydroxylamine (TsONHBoc) as an aminating agent in hexafluoroisopropanol (HFIP). The use of TsONHBoc, which generates the free aminating agent in situ under the reaction conditions, has several inherent advantages over other similar agents, such as low cost, easy access
[EN] DIRECT STEREOSPECIFIC SYNTHESIS OF UNPROTECTED AZIRIDINES FROM OLEFINS<br/>[FR] SYNTHÈSE STÉRÉOSPÉCIFIQUE DIRECTE D'AZIRIDINES NON PROTÉGÉES À PARTIR D'OLÉFINES
申请人:ESS DANIEL HALSELL
公开号:WO2015103505A3
公开(公告)日:2015-07-30
DIRECT STEREOSPECIFIC SYNTHESIS OF UNPROTECTED AZIRIDINES FROM OLEFINS
申请人:ESS Daniel Halsell
公开号:US20160340305A1
公开(公告)日:2016-11-24
A method for the direct stereospecific conversion of structurally diverse mono-, di-, tri- and tetra-substituted olefins to N—H, N-alkyl, N-cycloalkyl, or N-aralkyl aziridines using a hydroxylamine amination agent with transition metal catalyst. The method is operationally simple (i.e., one-pot), scalable and fast at ambient temperature.