US PATENT SUBCLASS 585 / 427
.~.~.~ Arylene bond formed using metal-containing agent

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

400  DF  AROMATIC COMPOUND SYNTHESIS {15}
422  DF  .~ By condensation of entire cyclic molecules or entire hydrocarbyl moieties thereof, e.g., polymerization, etc. {4}
425  DF  .~.~ Ring carbon of one molecule joined to ring carbon of other {2}
427.~.~.~ Arylene bond formed using metal-containing agent

DEFINITION

Classification: 585/427

Arylene bond formed using metal-containing agent:

(under subclass 425) Subject matter in which a biphenyl, polyphenyl, substituted biphenyl or polyphenyl, or partially hydrogenated biphenyl or polyphenyl is the product and the process employs an agent, e.g., a catalyst, a solvent, etc., which is or contains a metal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

268, for a process in which hydrogenation of an aromatic ring takes place simultaneously with formation of the arylene bond, e.g., hydrodimerization of benzene, etc.