(1R,1'R,2S,2'S)-DUANPHOS

(1R,1'R,2S,2'S)-DUANPHOS
  • CAS No.:528814-26-8

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  1. This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
  2. This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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(1R,1'R,2S,2'S)-DUANPHOS Basic information
Reactions
Product Name:(1R,1'R,2S,2'S)-DUANPHOS
Synonyms:(1R,1'R,2S,2'S)-2,2'-Bis(1,1-dimethylethyl)-2,2',3,3'-tetrahydro-1,1'-bi-1H-isophosphindole,99%e.e.;(1R,1'R,2S,2'S)- 2,2'-bis(1,1-diMethylethyl)-2,2',3,3'-tetrahydro-1,1'-Bi-1H-isophosphindole;(1R,1'R,2S,2'S)-(+)-2,2'-Di-t-butyl-2,3,2',3'-tetrahydro-1,1'-bi-1H-isophosphindole (R,R,S,S)-DUANPHOS;RcSp-DuanPhos;1,1'-Bi-1H-isophosphindole, 2,2'-bis(1,1-dimethylethyl)-2,2',3,3'-tetrahydro-, (1R,1'R,2S,2'S)-;(1R,1'R,2S,2'S)-2,2'-di-tert-butyl-2,2',3,3'-tetrahydro-1H,1'H-1,1'-biisophosphindole
CAS:528814-26-8
MF:C24H32P2
MW:382.46
EINECS:
Product Categories:
Mol File:528814-26-8.mol
(1R,1'R,2S,2'S)-DUANPHOS Chemical Properties
Melting point 214-246 °C
alpha +19.5
Boiling point 474.5±45.0 °C(Predicted)
form crystal
color white
optical activity[α]20/D +18°, c = 1 in chloroform
Sensitive air sensitive
CAS DataBase Reference528814-26-8
Safety Information
WGK Germany 3
MSDS Information
(1R,1'R,2S,2'S)-DUANPHOS Usage And Synthesis
Reactions
  1. As a highly electron-donating and conformationally rigid ligand, the rhodium complex of DuanPhos has exhibited remarkably high enantioselectivities and reactivities for the hydrogenation of a variety of functionalized olefins.
  2. Rhodium/DUANPHOS catalyst used in the synthesis of 2-trifluoromethyl lactic acid by asymmetric hydroformylation.
UsesChiral Quest Phosphine Ligands for Asymmetric HydrogenationCatalytic ligand used for:
  • Stereoselective synthesis of cyano-substituted dihydropyrroles by annulation of cyanoallenes
  • Rhodium-catalyzed intermolecular enantioselective hydroacylation of alkynes to give alpha- and beta-substituted unsaturated ketones by kinetic resolution
  • Stereoselective preparation of β-amino nitriles via rhodium-catalyzed asymmetric hydrogenation of amino acrylonitriles
  • Stereoselective preparation of anti-1,3-amino alcohols via rhodium-catalyzed asymmetric hydrogenation of β-ketoenamide intermediates
  • Stereoselective preparation of acetylaminoindane via rhodium-catalyzed asymmetric hydrogenation of acetylaminoindene
General Description(1R,1′R,2S,2′S)-DuanPhos is an electron-rich chiral phosphine ligand mainly for transition metal catalyzed asymmetric hydrogenation.
(1R,1'R,2S,2'S)-DUANPHOS Preparation Products And Raw materials

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