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US 2016/0254449 A1Published application
Hole transport material
AssigneeMerck Patent GmbH
InventorsHiromi SHINOHARA, Atsushi SAWADA, Elvira MONTENEGRO, Heinrich BECKER
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Abstract
The invention relates to 2,2′,7,7′-tetrakis-(N,N′-di-4-methoxy-3-methylphenylamine)-9,9′-spirofluorene, to a process for its preparation, and to its use as hole transport material for electronic or optoelectronic devices, especially for solid-state dye-sensitized solar cells.
Claims17
A compound of formula (I)
(canceled)
The compound bis(4-methoxy-3-methylphenylamine).
A process for the preparation of bis(4-methoxy-3-methylphenylamine) comprising reacting 5-bromo-2-methoxy-1,3-dimethylbenzene in a Buchwald-Hartwig amination with 4-methoxy-3,5-dimethylphenylaniline.
Dependencies are inferred from the claim text.