Chemistry is the science of bond making and bond breaking. A thorough knowledge of these
processes in the course of the chemical reaction lies at the heart of any reaction mechanism …

Asymmetric catalysis with chiral 1, 3-oxazolidine ligands, which have a sterically tunable,
rigid structure that can accommodate several chiral centers, has found increasing attention …

Very recently, local electrophilic and nucleophilic “Parr functions” were empirically
introduced (LR Domingo, P. Pérez, JA Saez RSC Adv. 3 (2013) 1486) in order to properly …

The electronic reorganization along the [3+ 2] cycloaddition (32CA) reaction of the simplest
azomethine ylide (AY) with ethylene has been studied using the topological analysis of the …

The nonpolar [3+ 2] cycloaddition (32CA) reaction of the carbonyl ylide (CY) 23 with
tetramethylethylene (TME) 24 has been studied with DFT methods at the B3LYP/6-31G …

This work revisits the topological characterization of the Diels–Alder reaction between 1, 3-
butadiene and ethylene. In contrast to the currently accepted rationalization, we here …

The electron-reorganization along the concerted and stepwise pathways associated with the
non-polar Diels–Alder reaction between cyclopentadiene (Cp, 1) and ethylene (2) has been …

The regio-and stereochemical polar [3+ 2] cycloaddition of the azomethine ylides, which
were generated in situ by the reaction of isatin derivatives and proline, with trans-β …

A Ni (II)/bisoxazoline-catalyzed asymmetric dearomative [3+ 2] cycloaddition of substituted
purines with donor–acceptor oxiranes was developed. This reaction, which proceeds via …

Oxiranes have attracted significant attention mainly as a result of being useful as building
blocks for the synthesis of organic structures, their ease of preparation, and their propensity …