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697761

Sigma-Aldrich

(R,R)-DIPAMP

95%

Synonym(s):

(R,R)-1,2-Bis[(2-methoxyphenyl)(phenylphosphino)]ethane, (R,R)-1,2-Ethanediylbis[(2-methoxyphenyl)phenylphosphine], (R,R)-Ethylenebis[(2-methoxyphenyl)phenylphosphine], [(1R,2R)-(−)-Bis[(2-methoxyphenyl)phenylphosphino]ethane]

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About This Item

Linear Formula:
[CH3OC6H4P(C6H5)CH2-]2
CAS Number:
55739-58-7
Molecular Weight:
458.47
MDL number:
MFCD05863546
UNSPSC Code:
12352112
PubChem Substance ID:
329761951
NACRES:
NA.22

assay

95%

form

solid

optical activity

[α]22/D −81°, c = 1 in chloroform

mp

102-106 °C (lit.)

SMILES string

COc1ccccc1P(CCP(c2ccccc2)c3ccccc3OC)c4ccccc4

InChI

1S/C28H28O2P2/c1-29-25-17-9-11-19-27(25)31(23-13-5-3-6-14-23)21-22-32(24-15-7-4-8-16-24)28-20-12-10-18-26(28)30-2/h3-20H,21-22H2,1-2H3/t31-,32-/m1/s1

InChI key

QKZWXPLBVCKXNQ-ROJLCIKYSA-N

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Application

(R, R)-DIPAMP can be used:
  • As a catalyst in the enantioselective [3+2] cycloaddition of γ-substituted allenoates with β-perfluoroalkyl enones and 3-butynoates with electron-deficient olefins to yield substituted cyclopentenes.
  • To prepare its rhodium metal complexes, which are used as catalysts in asymmetric hydrogenation reactions.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Aquatic Chronic 4 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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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Phosphine-catalyzed enantioselective [3+2] cycloadditions of γ-substituted allenoates with β-perfluoroalkyl enones
Zhou W, et al.
Chemical Science, 8(6), 4660-4665 (2017)
Effect of gas-liquid mass transfer on enantioselectivity in asymmetric hydrogenations
Pestre N, et al.
J. Mol. Catal. A: Chem., 252(1-2), 85-89 (2006)
Highly enantio-, regio-and diastereo-selective one-pot [2+ 3]-cycloaddition reaction via isomerization of 3-butynoates to allenoates
Sampath M and Loh T
Chemical Science, 1(6), 739-742 (2010)
Development of an Asymmetric Hydrogenation Route to (S)-N-Boc-2, 6-Dimethyltyrosine
Praquin C, et al.
Organic Process Research & Development, 15(5), 1124-1129 (2011)

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