Continuous process for preparing dihydropyrones

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Reexamination Certificate

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07141681

ABSTRACT:
The invention relates to a continuous process for preparing dihydropyrones of general formula I,wherein the groups R1and R2have the meanings described herein.

REFERENCES:
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