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Oxazolidine is a five-membered heterocycle ringwith the formula (CH 2) 3 (NH)O.The O atom and NH groups are not mutually bonded, in contrast to isoxazolidine. [ 2 ] [ 3 ] Oxazolidines (emphasis on plural) are derivatives of the parent oxazolidine owing to the presence of substituents on carbon and/or nitrogen.
1,3-Oxazolidin-2-one, 2-Oxo-1,3-oxazolidine, 2-Oxotetrahydro-1,3-oxazole ... 2-Oxazolidinone is a heterocyclic organic compound containing both nitrogen and oxygen in ...
A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s). [1] Heterocyclic organic chemistry is the branch of organic chemistry dealing with the synthesis, properties, and applications of organic heterocycles .
The oxazolidones and isoxazolidones are a set of six isomeric five-membered heterocyclic compounds consisting of a carbonyl group, an oxygen atom, a nitrogen atom with a hydrogen atom attached, and two methylene groups.
This was a remarkable result for the time and generated significant interest in the BOX motif. As the synthesis of 2-oxazoline rings was already well established at this time (literature reviews in 1949 [29] and 1971 [30]), research proceeded quickly, with papers from new groups being published within a year.
Oxazolidines are a five-membered ring compounds consisting of three carbons, a nitrogen, and an oxygen. The oxygen and NH are the 1 and 3 positions, respectively. In oxazolidine derivatives, there is always a carbon between the oxygen and the nitrogen.
Two conceptually different approaches are feasible for preparing oxazolidine- and thiazolidine-ring-containing dipeptide derivatives: (1) the in situ acylation of Ser- or Thr-derived oxazolidines or Cys-derived thiazolidines using acid fluorides or N-carboxyanhydrides (NCA); and (2) the direct insertion of the oxazolidine systems into ...
In coordination chemistry, a macrocyclic ligand is a macrocyclic ring having at least nine atoms (including all hetero atoms) and three or more donor sites that serve as ligands. [1] Crown ethers and porphyrins are prominent examples. Macrocyclic ligands often exhibit high affinity for metal ions, the macrocyclic effect.