Unexplored Nucleophilic Ring Opening of Aziridines
作者:Ana María Costero、Salvador Gil、Margarita Parra、Pablo Rodríguez
DOI:10.3390/molecules15129135
日期:——
The reactivity of dianions of carboxylic acids towards aziridines has been studied. Although, a similar reactivity to that of enolates from ketones, esters or amides has been observed, the method directly yields g-aminoacids in one step. The method is complementary of previous results of enenediolate reactivity with other electrophiles. A comparative study with the reactivity of this enediolates with epoxides is included.
Ni-Catalyzed Carboxylation of Aziridines en Route to β-Amino Acids
作者:Jacob Davies、Daniel Janssen-Müller、Dmitry P. Zimin、Craig S. Day、Tomoyuki Yanagi、Jonas Elfert、Ruben Martin
DOI:10.1021/jacs.1c01916
日期:2021.4.7
pressure is disclosed. The protocol is characterized by its mild conditions, experimental ease, and exquisite chemo- and regioselectivity pattern, thus unlocking a new catalytic blueprint to access β-aminoacids, important building blocks with considerable potential as peptidomimetics.
an ortho-C(sp2) atom of aromatic acids with aliphatic aziridines to construct the β-arylethylamine skeleton via C–H activation has been developed. The reaction proceeded under mild conditions with great substrate scope. Meanwhile, the β-arylethylamine skeleton in drugs or bioactive compounds could be easily generated in a single step. A catalytic amount of cesium carbonate was crucial to realizing
Synthesis of β-Phenethylamines via Ni/Photoredox Cross-Electrophile Coupling of Aliphatic Aziridines and Aryl Iodides
作者:Talia J. Steiman、Junyi Liu、Amanuella Mengiste、Abigail G. Doyle
DOI:10.1021/jacs.0c01724
日期:2020.4.22
A photoassisted Ni-catalyzed reductive cross-coupling between tosyl-protected alkyl aziridines and commercially available (hetero)aryl iodides is reported. This mild and modular method proceeds in the absence of stoichiometric heterogeneous reductants and uses an inexpensive organic photocatalyst to access medicinally valuable β-phenethylamine derivatives. Unprecedented reactivity was achieved with
Acid-Catalyzed Tandem Process for the One-Pot Synthesis of
Oxazolidines
作者:Abdul Aldmairi、David Knight、Thomas Wirth
DOI:10.1055/s-0036-1591513
日期:2017.12
A simple protocol for the synthesis of oxazolidines from aziridines and allylic alcohols is reported. The solid-supported sulfonic acid catalyst can be easily removed after the reaction by a simple filtration leading to the oxazolidine reaction products in good to excellent yields.