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424773

Sigma-Aldrich

4-Benzylidene-2-phenyl-2-oxazolin-5-one

≥99%

Synonym(s):

(Z)-4-Benzylidene-2-phenyloxazolin-5-one, (Z)-4-benzylidene-2-phenyloxazol-5(4H)-one, 4-Benzylidene-2-phenyl-5(4H)-oxazolone

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About This Item

Empirical Formula (Hill Notation):
C16H11NO2
CAS Number:
17606-70-1
Molecular Weight:
249.26
MDL number:
MFCD00020895
UNSPSC Code:
12352100
PubChem Substance ID:
24866590

Assay

≥99%

mp

165-167 °C (lit.)

SMILES string

O=C1OC(=N\C1=C/c2ccccc2)c3ccccc3

InChI

1S/C16H11NO2/c18-16-14(11-12-7-3-1-4-8-12)17-15(19-16)13-9-5-2-6-10-13/h1-11H/b14-11-

InChI key

VFDOKJVMHZUBTN-KAMYIIQDSA-N

General description

4-Benzylidene-2-phenyl-2-oxazolin-5-one (4-benzal-2-phenyl-5-oxazolone) is an azlactone. The absolute configuration of the geometric isomers of 4-benzylidene-2-phenyl-2-oxazolin-5-one have been determined by NMR spectroscopy. It undergoes two primary photochemical processes, geometric isomerization and hydrogen abstraction from solvent.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
0000137029
09117EG

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Unsaturated lactone photochemistry. Effect of wavelength and sensitizer structure on selective population of specific excited states.
Ullman EF and Baumann N.
Journal of the American Chemical Society, 92(20), 5892-5899 (1970)
The geometrical isomers of 4-benzylidene-2-phenyl-2-oxazolin-5-one: determination of absolute configurations by nuclear magnetic resonance spectroscopy.
Brocklehurst K, et al.
Chemical Communications (Cambridge, England), 15, 884-886 (1968)

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