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798363

Sigma-Aldrich

Endo-Phenyl Kwon [2.2.1] Bicyclic Phosphine

95% (HPLC)

Synonym(s):

(1S,4S,5S)-5-(phenyl)-2-tosyl-2-aza-5-phosphabicyclo[2.2.1]heptane

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About This Item

Empirical Formula (Hill Notation):
C18H20NO2PS
Molecular Weight:
345.40
MDL number:
MFCD28016350
UNSPSC Code:
12352005
PubChem Substance ID:
329768643
NACRES:
NA.22

Quality Level

100

Assay

95% (HPLC)

form

powder

storage condition

under inert gas

mp

96-101 °C

functional group

phosphine
sulfonamide

storage temp.

2-8°C

SMILES string

O=S(N1C[C@@]2([H])[P@@](C3=CC=CC=C3)C[C@]1([H])C2)(C4=CC=C(C)C=C4)=O

InChI

1S/C18H20NO2PS/c1-14-7-9-18(10-8-14)23(20,21)19-12-17-11-15(19)13-22(17)16-5-3-2-4-6-16/h2-10,15,17H,11-13H2,1H3/t15-,17-,22?/m0/s1

InChI key

BWXYDSDVFPJTFY-TWMUNHRGSA-N

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Application

The bicyclic, chiral phosphine was developed by the Kwon Research Group.Its initial applications were for asymmetric [3+2] annulation between allenes and imines as well as the first examples of phosphine-catalyzed asymmetric syntheses of 1,2,3,5-substituted pyrrolines. Along with nucleophilic organocatalysis, the P-chiral phosphines may also find utility in asymmetric transition-metal catalysis.

Other Notes

Hydroxyproline-Derived Pseudoenantiomeric [2.2.1] Bicyclic Phosphines: Asymmetric Synthesis of (+)- and (-)-Pyrrolines

Technology Spotlight- Kwon Phosphines: P-Chiral Monodentate Phosphines from Hydroxyproline

Aldrichimica Acta Review- Nucleophilic Chiral Phosphines: Powerful and Versatile Catalysts for Asymmetric Annulations

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P301 + P312 + P330

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKBT5973V

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Lingchao Cai et al.
Journal of the American Chemical Society, 138(10), 3298-3301 (2016-02-26)
Described herein is a catalytic asymmetric total synthesis of (-)-actinophyllic acid, with the key step being a chiral phosphine-catalyzed [3 + 2] annulation between an imine and an allenoate to form a pyrroline intermediate in 99% yield and 94% ee.
Yiting Gu et al.
Journal of the American Chemical Society, 137(19), 6400-6406 (2015-04-24)
Two classes of phosphine-catalyzed addition/cycloaddition domino reactions of β'-acetoxy allenoate 1 have been developed. The reaction of 1 with 2-acyl-3-methyl-acrylonitrile 2 readily occurs to give 2-oxabicyclo[3.3.1]nonane 3, furnishing the β'-addition/[4 + 4] cycloaddition domino sequence. In this sequence, β'C of
Ian P Andrews et al.
Chemical science, 3(8), 2510-2514 (2012-07-17)
In this study we performed the total synthesis of the terpene indole alkaloid (+)-ibophyllidine through a pathway involving asymmetric phosphine catalysis, with our novel l-4-hydroxyproline-derived chiral phosphine mediating the key [3 + 2] annulation. Hydrogenation of the [3 + 2]
Christopher E Henry et al.
Journal of the American Chemical Society, 136(34), 11890-11893 (2014-08-08)
We have prepared two new diastereoisomeric 2-aza-5-phosphabicyclo[2.2.1]heptanes from naturally occurring trans-4-hydroxy-L-proline in six chemical operations. These syntheses are concise and highly efficient, with straightforward purification. When we used these chiral phosphines as catalysts for reactions of γ-substituted allenoates with imines

Articles

Kwon Phosphines: P-Chiral Monodentate Phosphines from Hydroxyproline

Chiral phosphines have been the staple ligands for asymmetric transition metal catalysis and more recently operate as catalysts in organic phosphinocatalysis.

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Kwon Group – Professor Product Portal

The Kwon Group has made major strides in the development and application of nucleophilic phosphinocatalysis reactions as a means to synthesize carbo- and heterocycles that serve as synthetic intermediates for both natural products and medicinally useful compounds.

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