Peri-bridged naphthalenes. 2. Unsymmetrical diatomic chalcogen bridges
Peri-bridged naphthalenes. 2. Unsymmetrical diatomic chalcogen bridges
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近桥联萘。
DOI:
10.1021/ja00465a074
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发表时间:
1977
影响因子:
15
通讯作者:
J. Clardy
中科院分区:
文献类型:
--
作者:
J. Meinwald;D. Dauplaise;J. Clardy
The synthesis of unsymmetrical naphthol(1,8-cd)1,2-selenathile (IV), naphthol(1,8-cd)-1,2-tellurathiole (V), and naphthol(1,8-cd)-1,2-telluraselenole (VI) from 1,8-dibromonaphthalene is reported. The methodology is illustrated by the preparation of (IV) in which (VII) reacts sequentially with 1 equiv of n-butyllithium, i equiv of elemental S, a 2n equiv of n-butyllithium, and 1 equiv of elemental Se. (IV) is a dark red solid and its crystal structure was determined. (V) is obtained as bronze filaments and (VI) as shiny black flakes. These unsymmetrically bridged naphthalenes are good electron donors and form charge-transfer complexes with both 7,7,8,8-tetracyanoquinodimethane and iodine. (JSR)