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464155

Sigma-Aldrich

[3aR-[2(3′aR*,8′aS*),3′aβ,8′aβ]]-(+)-2,2′-Methylenebis[3a,8a-dihydro-8H-indeno[1,2-d]oxazole]

98%

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About This Item

Empirical Formula (Hill Notation):
C21H18N2O2
CAS Number:
180186-94-1
Molecular Weight:
330.38
MDL number:
MFCD06797115
UNSPSC Code:
12352005
PubChem Substance ID:
24870145
NACRES:
NA.22

Assay

98%

optical activity

[α]22/D +353°, c = 3.7 in chloroform

mp

204-206 °C (lit.)

functional group

ether

SMILES string

C1[C@@H]2OC(CC3=N[C@H]4[C@@H](Cc5ccccc45)O3)=N[C@H]2c6ccccc16

InChI

1S/C21H18N2O2/c1-3-7-14-12(5-1)9-16-20(14)22-18(24-16)11-19-23-21-15-8-4-2-6-13(15)10-17(21)25-19/h1-8,16-17,20-21H,9-11H2/t16-,17-,20+,21+/m0/s1

InChI key

BDHSVQLSNIGJNC-ZCLUNYJNSA-N

Application

[3aR-[2(3′aR*,8′aS*),3′aβ,8′aβ]]-(+)-2,2′-Methylenebis[3a,8a-dihydro-8H-indeno[1,2-d]oxazole] is a C2 symmetric chiral ligand based on bis(oxazoline) moiety, which can be used in enantioselective catalysis. It easily forms bidentate coordination complexes due to the strong affinity of the oxazoline nitrogen for various metals. Copper complex of this chiral ligand can be utilized as a reusable catalyst in the cyclopropanation reaction between styrene and ethyl diazoacetate.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

464155-BULK:
464155-500MG:
464155-VAR:
464155-100MG:

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Certificates of Analysis (COA)

Lot/Batch Number
MKBV1543V
MKBP3943V
24597PJV
24597PJ
05027CB

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C 2-symmetric chiral bis (oxazoline) ligands in asymmetric catalysis
Desimoni G, et al.
Chemical Reviews, 106(9), 3561-3651 (2006)
Polytopic Bis (oxazoline)-Based Ligands for the Development of Recoverable Catalytic Systems Applied to the Cyclopropanation Reaction
Garcia JI, et al.
European Journal of Organic Chemistry, 2014(7), 1531-1540 (2014)
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

C2-symmetric chiral bisoxazolines (BOX) ligands

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

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