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A novel method for the oxidation of thiophenes. Synthesis of thiophene 1,1-dioxides containing electron-withdrawing substituents

✍ Scribed by V. G. Nenajdenko; A. M. Moiseev; E. S. Balenkova


Publisher
Springer
Year
2004
Tongue
English
Weight
285 KB
Volume
53
Category
Article
ISSN
1573-9171

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## Abstract Naphthalene‐1‐sulfonic acid dimethylamides were treated with __n__‐BuLi and elemental sulfur or selenium to afford dinaphtho[1,2‐__b__:2β€²,1′‐__d__]thiophenes and selenophenes, respectively. This is the first example of making two Cο£ΏS/Se bonds and a Cο£ΏC bond in a single step at room temp