Preparation of 2,2'-di(3,4-ethylenedioxythiophene)s
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United States of America Patent
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Sep 5, 2006
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app pub date -
Dec 4, 2003
filing date -
Dec 10, 2002
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Abstract
The invention relates to a process for preparing compounds of the general formula (I) ##STR00001## to novel compounds of this substance class and also to their use as important precursors or for preparing important precursors for .pi.-conjugated polymers.
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