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Merck
CN

464155

[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
NACRES:
NA.22
PubChem Substance ID:
24870145
UNSPSC Code:
12352005
MDL number:
MFCD06797115

Key Documents

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Product Name

[3aR-[2(3′aR*,8′aS*),3′aβ,8′aβ]]-(+)-2,2′-Methylenebis[3a,8a-dihydro-8H-indeno[1,2-d]oxazole], 98%

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

SMILES string

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

InChI key

BDHSVQLSNIGJNC-ZCLUNYJNSA-N

assay

98%

optical activity

[α]22/D +353°, c = 3.7 in chloroform

mp

204-206 °C (lit.)

functional group

ether

Quality Level

200

Related Categories

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

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000132832
0000126408
0000091935
MKBV1543V
MKBP3943V

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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)
Gant, T.G. Meyers, A.I.
Tetrahedron, 50, 2297-2297 (1994)
Bolm, C.
Angewandte Chemie (International Edition in English), 30, 542-542 (1991)

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.

C2型轴对称手性双噁唑啉（BOX）配体

使用络合Cu(I)OTf的BOX配体进行不对称催化苯乙烯合成氮杂环丙烷的反应，BOX配体带苯基取代基的优于具有位阻需求的叔丁(t-Bu)基团。

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