US PATENT SUBCLASS 548 / 489
.~.~.~.~.~.~.~ Process of forming the bicyclo ring system directly from reactant which contains acyclic nitrogen bonded directly to a benzene ring (e.g., indoxyl from phenylglycine, etc.)

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
*  DD  .~ HETEROCYCLIC CARBON COMPOUNDS CONTAINING A HETERO RING HAVING CHALCOGEN (I.E., OXYGEN, SULFUR, SELENIUM, OR TELLURIUM) OR NITROGEN AS THE ONLY RING HETERO ATOMS (Class 540, subclass 1) {4}
400  DF  .~.~ Hetero ring is five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) {20}
416  DF  .~.~.~ Polycyclo ring system having the five-membered hetero ring as one of the cyclos {5}
452  DF  .~.~.~.~ Bicyclo ring system having the five-membered hetero ring as one of the cyclos (e.g., octahydroindoles, etc.) {7}
469  DF  .~.~.~.~.~ The bicyclo ring system consists of the five-membered hetero ring and a benzene ring (e.g., indole, etc.) {10}
484  DF  .~.~.~.~.~.~ Chalcogen bonded directly to ring carbon of the five-membered hetero ring (e.g., 3-indolols, etc.) {4}
489.~.~.~.~.~.~.~ Process of forming the bicyclo ring system directly from reactant which contains acyclic nitrogen bonded directly to a benzene ring (e.g., indoxyl from phenylglycine, etc.)

DEFINITION

Classification: 548/489

(under subclass 484) Processes wherein the bicyclo ring system is formed directly from a reactant which contains a benzene ring bonded directly to an acyclic nitrogen.

(1) Note. This subclass provides for such processes as: the reaction of N-methyl anthranilic acid with sodium amide to form indoxyl, the reaction of phenylglycine with alkali to form indoxyl, and the reaction of phenyl glycocol with sodium amide to form indoxyl, etc.