US PATENT SUBCLASS 585 / 473
.~.~.~.~ Meta- or 1,3,5-alkyl benzene

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

400  DF  AROMATIC COMPOUND SYNTHESIS {15}
470  DF  .~ By alkyl or aryl transfer between molecules, e.g., disproportionation, etc. {3}
471  DF  .~.~ Product is polycyclic, of increased side-chain length, or a specific position polyalkyl benzene isomer {1}
472  DF  .~.~.~ Using Al or B halide catalyst {1}
473.~.~.~.~ Meta- or 1,3,5-alkyl benzene

DEFINITION

Classification: 585/473

Meta- or 1,3,5-alkyl benzene:

(under subclass 472) Subject matter in which the product is a meta-alkyl benzene, e.g., 1,3-diethyl benzene, etc., or a 1,3,5-trialkyl benzene, e.g., mesitylene, etc.

(1) Note. Tetraalkylbenzenes, etc., are not subject matter for this subclass.