The selective reduction of hydroperoxyacetals to aldehydes by sodium triacetoxyborohydride provides the basis for a mild one-pot synthesis of amines from alkenes. ozonolysis - hydroperoxyacetal - reductiveamination - amine - sodium triacetoxyborohydride
Hydrogen-free reductive amination using iron pentacarbonyl as a reducing agent
作者:Oleg I. Afanasyev、Dmitry L. Usanov、Denis Chusov
DOI:10.1039/c7ob02795h
日期:——
We developed solvent-free reductiveaminationwithout an externalhydrogensource using iron pentacarbonyl as a reducing agent. Neither a catalyst nor any other additives were employed. Various types of substrates are suitable for the reaction, including those with low reactivity, e.g. benzophenone. Among others, the protocol tolerates bromo-, cyano-, benzyloxy-, pyrimidyl and styryl moieties.
Cobalt‐Catalyzed Aminocarbonylation of Alkyl Tosylates: Stereospecific Synthesis of Amides
作者:Brendon T. Sargent、Erik J. Alexanian
DOI:10.1002/anie.201905173
日期:2019.7.8
functionality in chemical synthesis. Despite broad application of this transformation using aryl or vinyl electrophiles, there are few examples involving unactivated aliphatic substrates. Furthermore, there are no stereocontrolled aminocarbonylations of alkyl electrophiles known. Herein, we report a stereospecific aminocarbonylation of unactivated alkyl tosylates for the synthesis of enantioenriched amides
Carbon monoxide-driven osmium catalyzed reductive amination harvesting WGSR power
作者:Klim O. Biriukov、Mikhail M. Vinogradov、Oleg I. Afanasyev、Dmitry V. Vasilyev、Alexey A. Tsygankov、Maria Godovikova、Yulia V. Nelyubina、Dmitry A. Loginov、Denis Chusov
DOI:10.1039/d1cy00695a
日期:——
First osmium-catalyzed reductive amination under the water gas–shift reaction conditions was developed. Proposed catalytic system demonstrates high performance even at the catalyst loading as low as 0.0625 mol%.