The first stereoselective rhodium-catalyzedintermolecular aziridination and C–H amination of alkenes to produce chiral carbamate-protected aziridines and allylic amines is described. Good yields and diastereoselectivities were achieved using a readily available chiral N-tosyloxycarbamate and stoichiometric amount of the alkene substrate. Furthermore the protecting group is easy to cleave under mild
Enzymatic Primary Amination of Benzylic and Allylic C(sp<sup>3</sup>)–H Bonds
作者:Zhi-Jun Jia、Shilong Gao、Frances H. Arnold
DOI:10.1021/jacs.0c03428
日期:2020.6.10
processes are reported for their synthesis, methods that directly install a primary amine group into C(sp3)-H bonds remain unprecedented. Here, we report a set of new-to-nature enzymes that catalyzes the direct primary amination of C(sp3)-H bonds with excellent chemo-, regio-, and enantioselectivity, using a readily available hydroxylamine derivative as the nitrogen source. Directed evolution of genetically-encoded