Oxazoline

Oxazoline
Names
	Preferred IUPAC name 4,5-Dihydro-1,3-oxazole
	Other names Δ2-oxazoline
Identifiers
CAS Number	504-77-8 (2-oxazoline) ; 95879-85-9 (3-oxazoline) ; 6569-13-7 (4-oxazoline) ;
3D model (JSmol)	Interactive image;
ChemSpider	61465 ;
ECHA InfoCard	100.007.274
PubChem CID	68157;
UNII	31TB4J57Y5 (2-oxazoline) ;
CompTox Dashboard (EPA)	DTXSID9052139 ;
	InChI InChI=1S/C3H5NO/c1-2-5-3-4-1/h3H,1-2H2 Key: IMSODMZESSGVBE-UHFFFAOYSA-N ;
	SMILES N\1=C\OCC/1;
Properties
Chemical formula	C3H5NO
Molar mass	71.079 g·mol−1
Density	1.075unit?
Boiling point	98 °C (208 °F; 371 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Oxazoline is a five-membered heterocyclic organic compound with the formula C₃H₅NO. It is the parent of a family of compounds called oxazolines (emphasis on plural), which contain non-hydrogenic substituents on carbon and/or nitrogen. Oxazolines are the unsaturated analogues of oxazolidines, and they are isomeric with isoxazolines, where the N and O are directly bonded. Two isomers of oxazoline are known, depending on the location of the double bond.

Oxazoline itself has no applications however oxazolines have been widely investigated for potential applications. These applications include use as ligands in asymmetric catalysis, as protecting groups for carboxylic acids and increasingly as monomers for the production of polymers.

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