Application of the pople-santry-segal CNDO method to the cyclopropylcarbinyl and cyclobutyl cation and to bicyclobutane

The Conservation of Orbital Symmetry

The chemistry of heterocyclic carbenes has experienced a rapid development over the last years. In addition to the imidazolin-2-ylidenes, a large number of cyclic diaminocarbenes with different ring sizes have been described. Aside from diaminocarbenes, P-heterocyclic carbenes, and derivatives with only one, or even no heteroatom within the carbene ring are known. New methods for the synthesis of complexes with N-heterocyclic carbene ligands such as the oxidative addition or the metal atom template controlled cyclization of β-functionalized isocyanides have been developed recently. This review summarizes the new developments regarding the synthesis of N-heterocyclic carbenes and their metal complexes.

Heterocyclic Carbenes: Synthesis and Coordination Chemistry

Molecular orbital theory for organic chemists

Catalytic carbene insertion into C-H bonds.

The Addition of Dichlorocarbene to Olefins

A rapidly reversible degenerate cope rearrangement

The Cycloheptatrienylium (Tropylium) Ion

The overlap of two allyl radicals or a four-centered transition state in the cope rearrangement☆

The Electron-seeking Demands of Dichlorocarbene in its Addition to Olefins

W. von E. Doering

Papers

The Addition of Dichlorocarbene to Olefins

A rapidly reversible degenerate cope rearrangement

The Cycloheptatrienylium (Tropylium) Ion

The overlap of two allyl radicals or a four-centered transition state in the cope rearrangement☆

The Electron-seeking Demands of Dichlorocarbene in its Addition to Olefins