237655
(−)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane
98%
Synonym(s):
(−)-1,4-Bis(diphenylphosphino)-1,4-dideoxy-2,3-O-isopropylidene-L-threitol, (4R,5R)-4,5-Bis(diphenylphosphino-methyl)-2,2-dimethyl-1,3-dioxolane, (4R-trans)-[(2,2-Dimethyl-1,3-dioxolane-4,5-diyl)bis(methylene)]bis(diphenylphosphine), (R,R)-DIOP
About This Item
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Quality Level
Assay
98%
optical activity
[α]19/D −26°, c = 2.3 in chloroform
mp
88-90 °C (lit.)
storage temp.
2-8°C
SMILES string
CC1(C)O[C@@H](CP(c2ccccc2)c3ccccc3)[C@H](CP(c4ccccc4)c5ccccc5)O1
InChI
1S/C31H32O2P2/c1-31(2)32-29(23-34(25-15-7-3-8-16-25)26-17-9-4-10-18-26)30(33-31)24-35(27-19-11-5-12-20-27)28-21-13-6-14-22-28/h3-22,29-30H,23-24H2,1-2H3/t29-,30-/m0/s1
InChI key
VCHDBLPQYJAQSQ-KYJUHHDHSA-N
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General description
Application
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
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Articles
Rewarded by a Nobel Prize in 2001 for his pioneering work in asymmetric synthesis, Knowles was the first to develop a transition-metal chiral catalyst based on a chiral diphosphine ligand, DIPAMP, that could transfer chirality to a prochiral substrate with high enantiomeric excesses.
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