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Merck
CN

675334

(S)-VAPOL

97%

Synonym(s):

(S)-2,2′-Diphenyl-(4-biphenanthrol)

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About This Item

Empirical Formula (Hill Notation):
C40H26O2
CAS Number:
Molecular Weight:
538.63
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352005
EC Number:
200-838-9
MDL number:
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InChI key

UFYXKDMLGBKHIC-UHFFFAOYSA-N

InChI

1S/C40H26O2/c41-39-35-29(21-19-27-15-7-9-17-31(27)35)23-33(25-11-3-1-4-12-25)37(39)38-34(26-13-5-2-6-14-26)24-30-22-20-28-16-8-10-18-32(28)36(30)40(38)42/h1-24,41-42H

SMILES string

Oc1c(c(cc2ccc3ccccc3c12)-c4ccccc4)-c5c(O)c6c(ccc7ccccc67)cc5-c8ccccc8

assay

97%

form

solid

optical activity

[α]20/D 128°, c = 1 in chloroform

mp

185-191 °C

functional group

phenyl

Quality Level

Application

VAPOL has proven to be an excellent ligand in catalytic asymmetric Diels-Alder, imine aldol, and aziridination reactions.

pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Mariia Pushina et al.
Chemical communications (Cambridge, England), 55(31), 4495-4498 (2019-03-29)
The determination of enantiomeric excess (ee) in various groups of chiral compounds, namely amines, amino alcohols, diols, and hydroxy acids is performed using a dual chromophore FRET/PET based sensor ensemble. The sensing ensemble utilizes fluorescence changes from two chromophores (indicators)
Su Yu et al.
Organic letters, 7(3), 367-369 (2005-01-28)
[reaction: see text] In an effort to develop a synthesis of the VAPOL ligand that avoids the use of a chromium carbene complex, a route was examined that involved the annulation of a naphthalene carboxamide via the method of Snieckus.
Bao. J. et al.
Journal of the American Chemical Society, 118, 3392-3392 (1996)
Yu Zhang et al.
Organic letters, 5(11), 1813-1816 (2003-05-24)
[reaction: see text] A copper-mediated deracemization of the vaulted biaryl ligands VANOL and VAPOL can be readily achieved in the presence of (-)-spartiene. The optimal procedure involves the in situ generation of copper(II) and leads to the reproducible formation of

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The research areas of interest to the Wulff group include enantioselective catalysis, mechanisms of asymmetric catalysis, macromolecular chemistry, Fischer carbene complexes in organic synthesis and the total synthesis of natural products.

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