Lactones (i.e., -c(=x)o-, Wherein X Is Chalcogen, Is Part Of The Hetero Ring) Patents (Class 549/263)
- Plural ring oxygens in the lactone ring (Class 549/267)
- Polycyclo ring system having the lactone ring as one of the cyclos (Class 549/268)
- Additional chalcogen attached directly or indirectly to the lactone ring by nonionic bonding (Class 549/271)
- Preparing from a cyclic ketone (i.e., a ketone where the carbonyl is part of a ring) (Class 549/272)
- Plural ring oxygens in the lactone ring (Class 549/274)
- Polycyclo ring system having the lactone ring as one of the cyclos (Class 549/275)
- Tetracyclo ring system having the lactone ring as one of the cyclos (Class 549/276)
- Tricyclo ring system having the lactone ring as one of the cyclos (Class 549/280)
- Bicyclo ring system having the lactone ring as one of the cyclos (Class 549/283)
- Plural bicyclo ring systems each having the lactone ring as one of the cyclos (Class 549/284)
- Additional acyclic chalcogen bonded directly to the lactone ring (Class 549/285)
- Acyclic -C(=X)-, wherein X is chalcogen, bonded directly to the lactone ring (Class 549/287)
- Nitrogen bonded directly to the bicyclo ring system (Class 549/288)
- The other cyclo of the bicyclo ring system is a six-membered carbocyclic ring to which chalcogen is directly attached (Class 549/289)
- The bicyclo lactone consists of two six-membered rings and is unsubstituted or hydrocarbyl substituted only (Class 549/290)
- Acyclic -C(=X)-, wherein X is chalcogen, bonded directly to the lactone ring (Class 549/291)
- Additional chalcogen bonded directly to the lactone ring (Class 549/292)
- Nitrogen attached directly or indirectly to the lactone ring by nonionic bonding (Class 549/293)
- Double bond between ring members of the lactone ring (Class 549/294)
- Plural ring oxygens in the lactone ring (Class 549/296)
- Polycyclo ring system having the lactone ring as one of the cyclos (Class 549/297)
- Tetracyclo ring system having the lactone ring as one of the cyclos (Class 549/298)
- Tricyclo ring system having the lactone ring as one of the cyclos (Class 549/299)
- Bicyclo ring system having the lactone ring as one of the cyclos (Class 549/302)
- Nitrogen bonded directly to the lactone ring (Class 549/303)
- Nitrogen attached indirectly to the lactone ring by acyclic nonionic bonding (Class 549/304)
- Chalcogen attached indirectly to the lactone ring by acyclic nonionic bonding (Class 549/305)
- Plural ring oxygens in the bicyclo ring system (Class 549/306)
- The other cyclo of the bicyclo ring system is benzene (e.g., phthalides, etc.) (Class 549/307)
- The bicyclo ring system consists of two five-membered rings (Class 549/311)
- Additional chalcogen bonded directly to the lactone ring (Class 549/313)
- At least two additional chalcogens bonded directly to the lactone ring (Class 549/314)
- Acyclic -C(=X)-, wherein X is chalcogen, attached directly or indirectly to the lactone ring by nonionic bonding (Class 549/318)
- Plural alkyl groups bonded directly to the same ring carbon of the lactone ring (e.g., pantolactone, etc.) (Class 549/319)
- Plural hetero rings (Class 549/320)
- Nitrogen attached directly or indirectly to the lactone ring by acyclic nonionic bonding (Class 549/321)
- Having -C(=X), wherein X is chalcogen, bonded directly to the lactone ring (Class 549/322)
- Chalcogen attached indirectly to the lactone ring by nonionic bonding (Class 549/323)
- Halogen attached directly or indirectly to the lactone ring by nonionic bonding (Class 549/324)
- Preparing by hydrogenation of cyclic anhydrides (Class 549/325)
- Preparing from compound containing -COO- group (Class 549/326)