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Synthesis of 1-[14C]-phenyl-1-(3,4-dimethyl)phenylethane, a component of some PCB replacement materials

✍ Scribed by D. E. Willis; R. F. Addison

Publisher
John Wiley and Sons
Year
1985
Tongue
French
Weight
177 KB
Volume
22
Category
Article
ISSN
0022-2135

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✦ Synopsis

Abstract

1‐[^14^C]‐phenyl‐1‐(3,4‐dimethyl)phenylethane, a labeled analogue of a PCB replacement used as an ink solvent in pressure sensitive copying paper and as a capacitor dielectric, has been prepared. The Grignard reagent derived from ^14^C‐bromobenzene was condensed with methyl(3,4‐dimethyl)phenylketone and the resulting tertiary alcohol was hydrogenolyzed. The final yield was 53.1% based on ^14^C‐bromobenzene; final specific activity of the product was 1.29 mCi·mmole^−1^, which is adequate for metabolic studies.

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