New reactions of a dibenzo[a,e]pentalene

被引：58

作者：

Saito, Masaichi ^{[1
]}

Nakamura, Michio ^{[1
]}

Tajima, Tomoyuki ^{[1
]}

机构：

[1] Saitama Univ, Grad Sch Sci & Engn, Dept Chem, Sakura Ku, Saitama 3388570, Japan

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2008年 / 14卷 / 20期

关键词：

anions; aromatic compounds; emission spectroscopy; reduction; UV/Vis spectroscopy;

D O I：

10.1002/chem.200800451

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reduction of dibenzo[a,e]pentalene 3 (denoted as dibenzopentalene hereafter) with excess lithium gave dilithium dibenzopentalenide 1. Since oxidation of I with iodine gave 3, redox behavior between 1 and 3 is controllable and reversible. Reaction of 3 with methyllithium gave lithium 5-methyldibenzopehtalenide 5, the formation of which was evidenced by some trapping experiments and X-ray crystallographic analysis. Reactions of 3 with halogens gave 5,10-dihalodibenzopentalenes, 8 and 9. Some optical properties of novel dibenzopentalene derivatives are also demonstrated.

引用

页码：6062 / 6068

页数：7

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