cas 136779-26-5, (-)-1,2-BIS((2S,5S)-2,5-DIMETHYLPHOSPHOLANO)ETHANE | Articles data ｜lookchem

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136779-26-5

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New chiral phospholanes; synthesis, characterization, and use in asymmetric hydrogenation reactions
We describe the practical synthesis of enantiomerically pure trans-2,5-disubstituted-1-phenylphospholanes which are then employed in the preparation of a new series of C2-symmetric bis- and C3-symmetric tris(phospholane) ligands. A versatile three-step route to the important chiral 1,4-diol intermediates, used in the phosphine syntheses, is outlined. Rhodium complexes bearing the new phosphine ligands were prepared and shown to act as efficient catalyst precursors for the enantioselective hydrogenation of various unsaturated substrates.
Burk,Feaster,Harlow
p. 569 - 592
(2007/12/18)

C2-symmetric bis(phospholanes) and their use in highly enantioselective hydrogenation reactions
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Burk, Mark J.
p. 8518 - 8519
(2007/10/02)

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Chemical Properties

Boiling Point: 64-67oC0.06 mm Hg
Flash Point:162.1oC
Density: 0.938 g/mL at 25oC
Vapor Pressure: 0.000285mmHg at 25°C
Refractive Index: n20/D 1.535
Sensitive: Air Sensitive
PSA: 27.18000
LogP: 5.09180

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