Method for the preparation of...

Details Method for the preparation of... Method for the preparation of...

2006-10-03

2006-10-03

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

Reexamination Certificate

active

07115788

ABSTRACT:
A method for the preparation of α,α,α′,α′-tetrafluoro-p-xylene is disclosed. α,α,α′,α′-tetrachloro-p-xylene and KF and a small amount of phase transfer catalyst are dissolved in solvent, xylene, and undergo a recycle reaction for 48 hours, after which 60% of the product is obtained

REFERENCES:
patent: WO98/24743 (1998-06-01), None

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