US PATENT SUBCLASS 568 / 785
.~.~.~.~.~.~.~ Preparing by catalytic alkylation


Current as of: June, 1999
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568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
700  DF  .~.~ Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) {10}
715  DF  .~.~.~ Benzene ring containing {8}
716  DF  .~.~.~.~ Phenols (H of -OH may be replaced by a Group IA or IIA light metal) {14}
780  DF  .~.~.~.~.~ Acyclic polycarbon hydrocarbyl group bonded directly to the benzene ring {4}
784  DF  .~.~.~.~.~.~ Tertiary butyl group {1}
785.~.~.~.~.~.~.~ Preparing by catalytic alkylation {4}
786  DF  .~.~.~.~.~.~.~>.~ Silicon containing catalyst
787  DF  .~.~.~.~.~.~.~>.~ Boron containing catalyst
788  DF  .~.~.~.~.~.~.~>.~ Sulfur containing catalyst
789  DF  .~.~.~.~.~.~.~>.~ Heavy metal or aluminum containing catalyst


DEFINITION

Classification: 568/785

Preparing by catalytic alkylation:

(under subclass 784) Processes wherein the compound is formed in a reaction which adds an alkyl group to the starting material in the presence of a catalyst.