{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

heterocyclics - Heterocycles Ring compounds with elements...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Heterocycles Ring compounds with elements other than carbon in the ring. The most common elements to appear in heterocyclic compounds are oxygen, nitrogen and sulfur. The aliphatic heterocycles are similar to the open chain analogues, ethers, amines and sulfides. The aromatic heterocycles are similar to other aromatic compounds.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Heterocyclic Nomenclature Replacement nomenclature ( IUPAC recommended 1957) Oxygen oxa Sulfur thia Nitrogen aza Lowest number assigned to the hetero atom with the highest precedence: O > S > N S thiacyclobutane O NH 1-oxa-3-azacyclopentane
Background image of page 2
Hantzsch-Widman (1888) Suffixes ring with nitrogen ring without nitrogen Ring members unsat’d sat’d unsat’d sat’d 3 -irine -iridine irene irine 4 ete etidine ete etane 5 ole olidine ole olane 6 ine perhydro__ine in ane 7 epine perhydro__epine epin epane
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
O S N H * oxirane ethylene oxide oxacyclopropane * thiirane ethylene sulfide thiacyclopropane * aziridine ethylene imine azacyclopropane N N N O N H diazirane 1-azirine oxaziridine oxazacyclopropane You must know the * names
Background image of page 4
O S NH N N oxetane oxacyclobutane thietane thiacyclobutane azetidine azacyclobutane azete azacyclobutadiene 1-azetine 1-azacyclobutene
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}