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798347

Sigma-Aldrich

Exo-2-Naphthyl Kwon [2.2.1] Bicyclic Phosphine

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C22H22NO2PS
Molecular Weight:
395.45
UNSPSC Code:
12352000
PubChem Substance ID:
329768641
NACRES:
NA.22

form

powder

Quality Level

100

mp

153-158 °C

storage temp.

2-8°C

SMILES string

O=S(N1C[C@H]2[P@](C3=CC=C4C(C=CC=C4)=C3)C[C@@H]1C2)(C5=CC=C(C)C=C5)=O

InChI

1S/C22H22NO2PS/c1-16-6-10-22(11-7-16)27(24,25)23-14-21-13-19(23)15-26(21)20-9-8-17-4-2-3-5-18(17)12-20/h2-12,19,21H,13-15H2,1H3

InChI key

SJQXCVUHXMHJMD-UHFFFAOYSA-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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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