PATENT ASSIGNEE'S COUNTRY | USA |
UPDATE | 09.99 |
PATENT ASSIGNEE | Allied Signal |
PATENT CLAIMS |
- Halogenating 3,3'-dimethoxybiphenyl with first halogen to form first 2,2'-di-X-5,5'-dimethoxybiphenyl (I) - Reacting (I) in presence of an organo-Li reagent with se cond halogen to form second 2,2'-di-X-5,5'-Di-OMe biphe nyl |
PATENT PHOTOCOPY | Available on request |
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