Iodobenzene Diacetate/Tetrabutylammonium Iodide‐Induced Aziridination of<i>N</i>‐Tosylimines with Activated Methylene Compounds under Mild Conditions
作者:Renhua Fan、Yang Ye
DOI:10.1002/adsc.200800157
日期:2008.7.7
Aziridination of N-tosylimines with activatedmethylenecompoundsinduced by iodobenzenediacetate [PhI(OAc)2] and tetrabutylammonium bromide [Bu4NBr] afforded the corresponding 2,2-difunctionalized aziridines in good yields with the aid of a catalytic amount of base. The reaction is hypothesized to proceed via a tandem nucleophilic addition-oxidative cyclization pathway.
Construction of thiazines and oxathianes via [3 + 3] annulation of N-tosylaziridinedicarboxylates and oxiranes with 1,4-dithiane-2,5-diol: application towards the synthesis of bioactive molecules
作者:Rohit Kumar Varshnaya、Prabal Banerjee
DOI:10.1039/c7ob00941k
日期:——
Lewis acid catalyzed [3+3] annulation of N tosylaziridinedicarboxylates and oxiranes with in situ generated mercaptoaldehyde for the synthesis of functionalized thiazine and oxathiane derivatives has been developed. Additionally, this method facilitate the derivatization of thiazine by detosylation and Krapcho monodecarboxylation.
An Approach to α‐ and β‐Amino Peroxides via Lewis Acid Catalyzed Ring Opening‐Peroxidation of Donor‐Acceptor Aziridines and
<i>N</i>
‐Activated Aziridines
作者:Kuldeep Singh、Pramod Kumar、Chenna Jagadeesh、Manveer Patel、Dinabandhu Das、Jaideep Saha
DOI:10.1002/adsc.202000815
日期:2020.10.6
Site‐selective ring‐opening process of two different aziridine classes with hydroperoxide is described herein that provides access to various α‐ and β‐amino and α‐(imino)‐peroxy compounds. This strain‐release‐driven peroxide addition to aziridines represents an alternative approach for entries to biologically significant heteroatom substituted organic peroxides and complements existing methods in the
Direct Aza-Darzens Aziridination of<i>N</i>-Tosylimines with 2-Bromomalonates for the Synthesis of Highly Functionalized Donor-Acceptor Aziridines
作者:Xingxing Wu、Lei Li、Junliang Zhang
DOI:10.1002/adsc.201200628
日期:2012.12.14
An approach to highlyfunctionalizeddonor-acceptoraziridines by the aziridination of N-tosylimines and 2-bromomalonates in the presence of sodium hydride under mild conditions has been developed. The high-yielding reaction has a relatively broad scope and can be easily scaled up to the gram level.