Non-Kekule' polyenes

Abstract

The non-Kekule polyenes are special p-conjugated biradicals in which the unpaired electrons are part of a classical p-system but are topol. prevented from forming a p-bond. The synthesis, structure, reactivity, spectroscopic characterization and spin multiplicity of trimethylenemethane (TMM), vinyltrimethylenemethane, tetramethyleneethane (TME) and their analogs, 2,3-dimethylenecyclopentadiene and their heterologs, tetramethylenebenzene, pentamethylenepropane and non-Kekule acene have been reviewed; 17 refs.

Key words: MOLECULAR STRUCTURE, METHANE P, HOMOLOG, BENZENE P, PROPANE P, ACTIVITY, ETHANE P, CYCLOPENTADIENE P, ISOMER, ORGANIC SYNTHESIS

CLC Number:

O621

Cite this article

XUE JIEYOU;SHAO RUILIAN. Non-Kekule' polyenes[J]. Chin. J. Org. Chem., 1992, 12(1): 1-14.

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