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405000

Sigma-Aldrich

(−)-2,2′-Isopropylidenebis[(4S)-4-phenyl-2-oxazoline]

97%

Synonym(s):

(S,S)-2,2′-Isopropylidenebis(4-phenyl-2-oxazoline), (S,S)-2,2-Bis(4-phenyl-2-oxazolin-2-yl)propane

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About This Item

Empirical Formula (Hill Notation):
C21H22N2O2
CAS Number:
Molecular Weight:
334.41
Beilstein:
4266906
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.22

Assay

97%

optical activity

[α]20/D −160°, c = 1 in ethanol

bp

193 °C/0.03 mmHg (lit.)

mp

37-41 °C (lit.)

density

1 g/mL at 25 °C (lit.)

storage temp.

−20°C

SMILES string

CC(C)(C1=N[C@H](CO1)c2ccccc2)C3=N[C@H](CO3)c4ccccc4

InChI

1S/C21H22N2O2/c1-21(2,19-22-17(13-24-19)15-9-5-3-6-10-15)20-23-18(14-25-20)16-11-7-4-8-12-16/h3-12,17-18H,13-14H2,1-2H3/t17-,18-/m1/s1

InChI key

JTNVCJCSECAMLD-QZTJIDSGSA-N

Application

C2 symmetric ligand for enantioselective catalysis. Easily forms bidentate coordination complexes due to the strong affinity of the oxazoline nitrogen for various metals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

230.0 °F - closed cup

Flash Point(C)

110 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Pfaltz, A.
Accounts of Chemical Research, 26, 339-339 (1993)
Bolm, C.
Angewandte Chemie (International Edition in English), 30, 542-542 (1991)
Gant, T.G. Meyers, A.I.
Tetrahedron, 50, 2297-2297 (1994)

Articles

BOX ligand complex enhances catalytic enantioselective aziridination of styrene, with phenyl substituents proving superior over t-Bu groups.

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