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Pyran derivatives containing an exocyclic double bond
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Document Number
US Patent 7314943
Issued Date
January 1, 2008
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Inventors
Poetsch; Eike
(Muehltal,DE)
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Meyer; Volker
(Gross-Zimmern,DE)
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Binder; Werner
(Dieburg,DE)
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Heckmeier; Michael
(Hemsbach,DE)
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Luessem; Georg
(Petershausen,DE)
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Guertler; Stephan
(Griesheim,DE)
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Abstract
The invention relates to pyran derivatives of formula I ##STR00001## and processes and intermediates for their preparation and derivatisation, and the use thereof in liquid-crystalline media.
Patent Report
Tags:
pyran
derivatives
containing
exocyclic
double
bond
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Description:
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Clever 0%
Complex 0%
Efficient 0%
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Important 0%
Innovative 0%
Interesting 0%
Practical 0%
Simple 0%
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Number of Claims:
33
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Owner
Merck Patent GmbH
(Darmstadt,DE)
Published
January 1, 2008
Application Number
10/852,731
Filed
May 25, 2004
US Classification
549/428
252/299.61 549/294 549/426 549/427
Int'l Classification
C07D 315/00 (20060101)
Examiner
Owens; Amelia A.
Attorney/Law Firm
Millen, White, Zelano & Branigan, P.C.
Priority Data
May 27, 2003 [DE] 103 24 348
USPTO Field of Search
514/337 549/356 549/426 549/427 549/428 252/299.61
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