The activation strain or distortion/interaction model is a tool to analyze activation barriers that
determine reaction rates. For bimolecular reactions, the activation energies are the sum of …

Abstract The concept of 1, 3‐dipolar cycloadditions was presented by Rolf Huisgen 60 years
ago. Previously unknown reactive intermediates, for example azomethine ylides, were …

Kenichi Fuk~ i fore, the electrophilic substitution in napht~ alene, for instance, such as
nitration, yields a-substituted derivatives predo~ inantly was not so easy to answer. That was …

The widespread use of controlled molecular‐level motion in key natural processes suggests
that great rewards could come from bridging the gap between the present generation of …

The discovery and development of new chemical reactions is a major focus of research
activity in organic chemistry. The chemical synthesis of molecules provided by Nature has …

In this review the processes occurring on the treatment of triphenylphosphane with
tetrachloromethane are first reported; a key role is played here by (trichloromethyl) …

A review of the various possible definitions of diradicals leads the authors to describe these
systems as having two odd electrons in degenerate or nearly‐degenerate molecular …

The scheme of the HOMO-LUMO interaction be-tween reacting species2-4 has drawn the
attention of organic chemists to the interpretation of the steric course of concerted processes …

A construction of the molecular orbitals of a bent bis (jj5-cyclopentadienyl) M fragment,
CpaM, M= a transition metal, serves as a starting point for a general account of the electronic …

Pyridines are increasingly being manufactured synthetically rather than isolated from coal
tar. 1 It is desirable for syntheses to be simple, selective, flexible, and waste-free. Prominent …