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Symmetry 2010, 2(2), 950-969; doi:10.3390/sym2020950

Synthesis and Reactions of Dibenzo[a,e]pentalenes

Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama-city, Saitama 338-8570, Japan
Received: 28 January 2010 / Revised: 11 March 2010 / Accepted: 20 April 2010 / Published: 21 April 2010
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Abstract

Pentalene has recently received a considerable amount of attention as a ligand in sandwich-type transition metal complexes. In contrast, dibenzo[a,e]pentalene (hereafter denoted as dibenzopentalene), which is more π-extended than pentalene, has received less attention, despite its potential usefulness as a building block of ladder-type π-conjugated molecules, which have recently received growing interest. However, very recently, several novel efficient methods for the synthesis of dibenzopentalenes have been reported. This review surveys recent advances in the synthesis and reactions of dibenzopentalenes and describes the aromaticity of their ionic species.
Keywords: dibenzopentalene; thermolysis; skeletal rearrangement; reductive cyclization; catalyst; redox reaction dibenzopentalene; thermolysis; skeletal rearrangement; reductive cyclization; catalyst; redox reaction
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Saito, M. Synthesis and Reactions of Dibenzo[a,e]pentalenes. Symmetry 2010, 2, 950-969.

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