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((2S,3S)-butane-2,3-diyl)bis(diphenylphosphane)

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Origin: China

Cas No: 64896-28-2

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 64896-28-2 Formula: C28H28P2 Molecular Weight: 426.46900

Description

Chiraphos is a chiral diphosphine employed as a ligand in organometallic chemistry. This bidentate ligand chelates metals via the two phosphine groups. Its name is derived from its description — being both chiral and a phosphine. Chiraphos is available in two enantiomeric forms, S,S and R,R, each with C2 symmetry.

Basic Info

Chemical Name	((2S,3S)-butane-2,3-diyl)bis(diphenylphosphane)
Synonyms	[(2S,3S)-3-diphenylphosphanylbutan-2-yl]-diphenylphosphane; (S,S)-Chiraphos;
CAS No.	64896-28-2
Molecular Formula	C28H28P2
Molecular Weight	426.46900
PSA	27.18000
LogP	6.02920

Properties

Appearance & Physical State	White granular powder
Boiling Point	529.2ºC at 760 mmHg
Melting Point	104-109ºC
Flash Point	291.2ºC

Safety Info

Safety Statements	37/39-26-36
HS Code	2902909090
Risk Statements	R36/37/38
Hazard Codes	Xi

Synthesis Route

(2R,3R)-2,3-Butanediyl bis(4-methylbenzenesulfonate)+lithium,diphenylphosphanide→((2S,3S)-butane-2,3-diyl)bis(diphenylphosphane)
BORANE-DIPHENYLPHOSPHINE COMPLEX→((2S,3S)-butane-2,3-diyl)bis(diphenylphosphane)
Triphenylphosphine+1-methylsulfonyloxybutyl methanesulfonate→((2S,3S)-butane-2,3-diyl)bis(diphenylphosphane)

Precursor

1-methylsulfonyloxybutyl methanesulfonate
lithium,diphenylphosphanide
Triphenylphosphine
BORANE-DIPHENYLPHOSPHINE COMPLEX

Downstream Product

dicyclohexyl(1-dicyclohexylphosphanylbutyl)phosphane

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