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248932

Sigma-Aldrich

(R)-(−)-1,1′-Binaphthyl-2,2′-diyl hydrogenphosphate

≥98%

Synonym(s):

(R)-(−)-1,1′-Binaphthalene-2,2′-diyl hydrogen phosphate, (R)-4-Hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-oxide

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About This Item

Empirical Formula (Hill Notation):
C20H13O4P
CAS Number:
Molecular Weight:
348.29
Beilstein:
4713363
MDL number:
UNSPSC Code:
12352005
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

≥98%

form

solid

optical activity

[α]20/D −605°, c = 1.35 in methanol

InChI

1S/C20H13O4P/c21-25(22)23-17-11-9-13-5-1-3-7-15(13)19(17)20-16-8-4-2-6-14(16)10-12-18(20)24-25/h1-12H,(H,21,22)

InChI key

JEHUZVBIUCAMRZ-UHFFFAOYSA-N

Application

(R)-(−)-1,1′-Binaphthyl-2,2′-diyl hydrogenphosphate is an organocatalyst that can be used:       
  • To facilitates the controlled ring-opening homopolymerization and copolymerization of ε-caprolactone (cyclic ester).        
  • As an additive along with a copper catalyst to achieve the highest catalytic activity in Sonogashira-type reactions.

A chiral ligand used in hydrocarboxylation reactions. Complexes with rhodium and mediates the asymmetric dipolar cycloaddition of diazo compounds. A number of racemic amines which have proven difficult to separate have been resolved with this chiral acid. Palladium derivatives have been used in asymmetric hydrocarboxylations, and rhodium derivatives have been used in dipolar cycloadditions.
Used in a chiral Bronsted acid catalyzed enantoselective Mannich reaction.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Skin Irrit. 2

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

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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Organophosphate-accelerated copper-catalyzed C (sp2)-C (sp) Sonogashira-type cross couplings
Xu W, et al.
Applied Organometallic Chemistry, 29(5), 301-304 (2015)
Tetrahedron Letters, 33, 5987-5987 (1992)
Journal of the American Chemical Society, 112, 2803-2803 (1990)
Craig, J.C. Ansari, A.M.
Chirality, 5, 188-188 (1993)
Alper, H. Hamel, N.
Journal of the American Chemical Society, 112, 2803-2803 (1990)

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