Regioselective Ring-Opening Nucleophilic Addition of Aziridines through Photoredox Catalyst
作者:Hongnan Sun、Chao Yang、Run Lin、Wujiong Xia
DOI:10.1002/adsc.201400476
日期:2014.9.15
A mild and efficient procedure was developed for the regioselective ring‐opening nucleophilic addition reactions of aziridines viavisiblelightphotoredoxcatalysis, that provides a practical synthetic access to 1,2‐bifunctional compounds. Furthermore, the regioselective synthesis of non‐racemic amino ethers from chiral aziridine could also be achieved under mild conditions. Finally, a possible reaction
Synthesis of 2-Aminophosphates via S<sub>N</sub>2-Type Ring Openings of Aziridines with Organophosphoric Acids
作者:Yang Wang、Bing-Yi Liu、Gaosheng Yang、Zhuo Chai
DOI:10.1021/acs.orglett.9b01302
日期:2019.6.21
The synthesis of 2-aminophosphates is achieved by a SN2-type ringopening reaction of various N-protected or free aziridines with phosphoric acids in a regiospecific and/or enantiospecific way. A one-pot, two-step procedure is also developed enabling direct access to 2-aminophosphates from olefins without isolation of the aziridine intermediates.
通过各种N-保护的或游离的氮丙啶的S N 2型开环反应以区域特异性和/或对映体特异性的方式实现磷酸2-氨基磷酸酯的合成。还开发了一种一锅两步的方法,无需分离氮丙啶中间体即可直接从烯烃获得2-氨基磷酸酯。
Nickel-Catalyzed Negishi Alkylations of Styrenyl Aziridines
作者:Chung-Yang (Dennis) Huang、Abigail G. Doyle
DOI:10.1021/ja3013825
日期:2012.6.13
A nickel-catalyzedcross-coupling reaction between N-sulfonyl aziridines and organozinc reagents is reported. The catalytic system comprises an inexpensive and air-stable Ni(II) source and dimethyl fumarate as ligand. Regioselective synthesis of β-substituted amines is possible under mild and functional-group-tolerant conditions. The stereoselectivity of the reaction is consistent with a stereoconvergent
报道了 N-磺酰基氮丙啶和有机锌试剂之间的镍催化交叉偶联反应。该催化系统包含廉价且空气稳定的 Ni(II) 源和富马酸二甲酯作为配体。β-取代胺的区域选择性合成在温和和官能团耐受的条件下是可能的。该反应的立体选择性与其中磺酰胺指导 CC 键形成的立体会聚机制一致。
Nucleophilic ring opening of aziridines with amines under catalyst- and solvent-free conditions
The aza-addition of aziridines for vicinal-diamines was firstly disclosed under catalyst- and solvent-free conditions. Various aryl, alkyl and meso-bicyclic aziridines with a Ts-protecting group were tolerated, and aromatic amine-nucleophiles containing...