Metal-catalyzed acylnitrene transfer reactions are widely proposed to proceed via M(NCOR) intermediates. In their Research Article on page 18619, Chi-Ming Che and co-workers report [Ru(Por)Cl2]-catalyzed highly selective transfers alkenes, indoles, silyl enol ethers, C(sp3)−H bonds afford aziridines/oxazolines, 3-aminoindoles, α-aminoketones, N-acyl amines, respectively, also experimental compu...

The reaction pathways of transient radical species are difficult to control, like the soap bubbles in wind depicted cover image. Yet, these short-lived intermediates, when one encounters another, readily assemble into a united structure, as two fuse bigger single bubble. enol silyl ether-derived cations with highly acidic allylic proton facilitates single-electron reduction cyanopyridines via p...

Conventional Suzuki–Miyaura arylations use halogenated compounds as electrophilic coupling partners. Although the catalytic activation of organohalides is well established, these substrates are seldom naturally abundant and questions exist to their metabolic environmental friendliness. Owing existence readily available chemical feedstocks, alcohols highly desirable cross-coupling partners, alth...

In contrast to the structurally and configurationally stable alkyl- or aryl-substituted cyclopropyl radical cations, cyclopropyl silyl ethers undergo spontaneous ring opening upon oxidation whereby the endocyclic C-C(O-TMS) bond is cleaved with remarkable selectivity. DFT calculations on 1-trimethylsilyloxybicyclo[4.1.0]heptane show that this selectivity arises from the topology of the potentia...

A thermally stable polymer-supported oxidant has been developed. Polymer-supported 2benzenesulfonyl-3-(4-nitrophenyl)oxaziridine was applied to microwave-assisted reactions that occurred at high temperatures and was shown to oxidize alkenes, silyl enol ethers, and pyridines to the corresponding epoxides and pyridine N-oxides in excellent to good yields and with much shorter reaction times. It a...

The title compound, [Co2Na2{μ2-N(SiMe3)2}4](μ4-O), (I), represents a new entry in the class of inverse crown ethers. In the mol-ecule, each Co atom is formally in the oxidation state +II. The structure contains one half of a unique mol-ecule per asymmetric unit with the central μ4-oxido ligand residing on an inversion center, leading to a planar coordination to the Na and Co atoms. In the cryst...

The impressive surface activity of silicones can be enhanced by the incorporation of hydrophilic organic functional groups and polymers. Traditional routes to such compounds, which typically involve platinum-catalyzed hydrosilylation, suffer from incompatibility with certain functional groups. B(C(6)F(5))(3)-catalyzed condensation of hydrosilanes with alkoxysilanes offers new opportunities to p...