| Identification | Back Directory | [Name]
(2R,3R)-(+)-BIS(DIPHENYLPHOSPHINO)BUTANE | [CAS]
74839-84-2 | [Synonyms]
(R,R)-CHIRAPHOS
(R,R)-Chiraphos,97%
2,3-Bis(diphenylphosphino)butane
(2R,3R)-(+)-BIS(DIPHENYLPHOSPHINO)BUTANE
(2R,3R)-(+)-2,3-BIS(DIPHENYL PHOSPHINO)BUTANE
(2R,3R)-Butane-2,3-diylbis(diphenylphosphine)
(2R,3R)-(+)-Bis(diphenylphosphino)butane, (R,R)-CHIRAPHOS
(2R,3R)-(+)-Bis(diphenylphosphino)butane, 98% (R,R)-CHIRAPHOS
(2R,3R)-(+)-2,3-Bis(diphenylphosphino)butane (R,R)-CHIRAPHOS | [Molecular Formula]
C28H28P2 | [MDL Number]
MFCD00075403 | [MOL File]
74839-84-2.mol | [Molecular Weight]
426.47 |
| Chemical Properties | Back Directory | [Appearance]
white crystalline powder | [Melting point ]
104-109 °C
| [Boiling point ]
529.2±33.0 °C(Predicted) | [storage temp. ]
Inert atmosphere,2-8°C | [form ]
solid | [color ]
white | [Sensitive ]
Air Sensitive | [InChI]
1S/C28H28P2/c1-23(29(25-15-7-3-8-16-25)26-17-9-4-10-18-26)24(2)30(27-19-11-5-12-20-27)28-21-13-6-14-22-28/h3-24H,1-2H3/t23-,24-/m1/s1 | [InChIKey]
FWXAUDSWDBGCMN-DNQXCXABSA-N | [SMILES]
C[C@H]([C@@H](C)P(c1ccccc1)c2ccccc2)P(c3ccccc3)c4ccccc4 | [CAS DataBase Reference]
74839-84-2 |
| Hazard Information | Back Directory | [Chemical Properties]
white crystalline powder | [Uses]
(2R,3R)-Bis(diphenylphosphino)butane is a reagent used in the synthesis of endothelin A receptor antagonists. Also used in the synthesis of (R)-Tolterodine and (S)-Tolterodine. | [Purification Methods]
It recrystallises from absolute EtOH (~6g in 60mL) as colourless plates [Fryzuk & Bosnich J Am Chem Soc 99 6262 1977, Fryzuk & Bosnich J Am Chem Soc 101 3043 1979]. |
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