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905240

Sigma-Aldrich

(R,R,R)-SPIRAP

≥95%

Synonym(s):

((1R,3R,3′R)-3,3′-diethyl-3H,3′H-1,1′-spirobi[isobenzofuran]-7,7′-diyl)bis(diphenylphosphane), (R)-CrabPhos

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About This Item

Empirical Formula (Hill Notation):
C43H38O2P2
Molecular Weight:
648.71
UNSPSC Code:
12161600
NACRES:
NA.22

assay

≥95%

form

powder or crystals

reaction suitability

reagent type: ligand
reaction type: Asymmetric synthesis

mp

226-228 °C

SMILES string

CC[C@@H](O1)C2=C([C@@]1(O[C@@H]3CC)C4=C3C=CC=C4P(C5=CC=CC=C5)C6=CC=CC=C6)C(P(C7=CC=CC=C7)C8=CC=CC=C8)=CC=C2

Related Categories

Application

(R,R,R)-SPIRAP is a chiral C2-symmetric spiroketal-containing ligand developed in the Nagorny lab for asymmetric catalysis. It can be used in variety of stereoselective transformations, including: Ir-catalyzed hydroarylation, Pd-catalyzed allylic alkylation, Pd-catalyzed Heck couplings, and Rh-catalyzed hydrogenation.

Product can be used with our benchtop hydrogen generator, H-Genie Lite (Z744083)

Other Notes

Design, Synthesis, and Application of Chiral C2-Symmetric Spiroketal-Containing Ligands in Transition-Metal Catalysis

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wgk_germany

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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Alonso J Argüelles et al.
Angewandte Chemie (International ed. in English), 57(19), 5325-5329 (2018-02-24)
We present an expedient and economical route to a new spiroketal-based C2 -symmetric chiral scaffold, termed SPIROL. Based on this spirocyclic scaffold, several chiral ligands were generated. These ligands were successfully employed in an array of stereoselective transformations, including in
Design, Synthesis, and Application of Chiral C2-Symmetric Spiroketal-Containing Ligands in Transition-Metal Catalysis.
Arguelles AJ, et al.
Angewandte Chemie (International Edition in English), 57(19), 5325-5329 (2018)

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