Processes for the preparation of octafluoro-[2,2]paracyclophane
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United States of America Patent
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May 11, 1993
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N/A
app pub date -
Dec 20, 1991
filing date -
Dec 20, 1991
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Expired
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Abstract
Processes are disclosed for the preparation of octafluoro-[2,2]paracyclophane which utilize a low temperature, e.g., less than about 200.degree. C., and a reducing agent comprising titanium to promote the dimerization of dihalo-tetrafluoro-p-xylenes. One suitable reducing agent is prepared by combining TiCl.sub.4 with LiAlH.sub.4 in an organic solvent.
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