US Patent 7893262 Process for the preparation of 2H-chromenes
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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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Patent Inventor Names
Johannes Hoffner0
Jurgen Jaeger0
Kaspar Burri0
Sorana Greiveldinger-Poenaru0
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US Patent 07893262 Process for the preparation of 2H-chromenes US Patent 7893262 Process for the preparation of 2H-chromenes
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Patent Number
078932620
Patent Number
78932620
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Patent Jurisdiction
Patent Number
078932620
Date of Patent
February 22, 2011
0Patent Application Number
105675580
Date Filed
August 3, 2004
0Official Website
Patent Primary Examiner
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US Patent 07893262 Process for the preparation of 2H-chromenes
Infobox
Is a
Patent jurisdiction
Patent number
07893262
Date of patent
February 22, 2011
Patent application number
10567558
Date Filed
August 3, 2004
Patent primary examiner
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