Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Sorana Greiveldinger-Poenaru0
Johannes Hoffner0
Jurgen Jaeger0
Kaspar Burri0
Date of Patent
February 22, 2011
0Patent Application Number
105675580
Date Filed
August 3, 2004
0Patent Primary Examiner
Patent abstract
The invention concerns a novel process for the preparation of 2H-chromenes of formula I and formula 5 and valuable intermediates of formulae 3 and 4 of this process.
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