2-Methylquinoline promoted oxidative ring-opening of N-sulfonyl aziridines with DMSO: facile synthesis of α-amino aryl ketones
作者:Xianhui Zhang、Shuai-Shuai Li、Liang Wang、Lubin Xu、Jian Xiao、Zhen-Jiang Liu
DOI:10.1016/j.tet.2016.10.041
日期:2016.12
2-Methylquinoline promoted room-temperature oxidative ring-opening of N-sulfonyl aziridines with DMSO has been developed, providing a mild and convenient method for the synthesis of a variety of different N-sulfonyl protected α-amino aryl ketones. The employment of 2-methylquinoline was crucial for the success of this mild transformation and good to excellent yields could be achieved.
Metal-Free Amidation Reactions of Terminal Alkynes with Benzenesulfonamide
作者:Sachinta Mahato、Sougata Santra、Grigory V. Zyryanov、Adinath Majee
DOI:10.1021/acs.joc.8b03065
日期:2019.3.15
synthesize α-sulfonylamino ketones through the reaction between terminal alkynes and sulfonamides under ambient air using PIDA (diacetoxy iodobenzene). A library of α-sulfonylamino ketone derivatives having a variety of substituents has been synthesized. A plausible reaction pathway has been predicted. This reaction offers a broad substrate scope, metal-free synthesis, excellent regioselectivity, easily
Regioselective Hydroperoxylation of Aziridines and Epoxides Only with Aqueous Hydrogen Peroxide
作者:SK Abu Saleh、Atanu Hazra、Saumen Hajra
DOI:10.1002/adsc.202100858
日期:2022.1.18
commercially available 50% aq. H2O2. This method provides an access to secondary benzylic β-hydroperoxy amines and -alcohols and tertiary 3-hydroperoxy oxindoles. The protocol is also applicable to the less reactive alkyl aziridines. Furthermore, an acid-catalyzed Kornblum-DeLaMare type rearrangement of secondary benzylic hydroperoxide has also been revealed to afford amino- and hydroxyl ketones.
已经使用市售的 50% 水溶液探索了氮丙啶和环氧化物(包括螺环氮丙啶和螺环氧羟吲哚)的催化剂和无有机溶剂区域选择性加氢过氧化。H 2 O 2。该方法提供了获得仲苄基β-氢过氧胺和β-醇和叔3-氢过氧羟吲哚的途径。该协议也适用于反应性较低的烷基氮丙啶。此外,酸催化的 Kornblum-DeLaMare 型仲苯甲基氢过氧化物重排也被揭示可提供氨基酮和羟基酮。