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

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Origem: China

Cas No: 74839-84-2

Especificação: 99%Min

Quantidade de ordem min: 1 /kg

Capacidade de fornecimento: 100 mt/month

Tempo de espera: 7 dias para OEM, 3 dias para produtos prontos

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CAS No.: 74839-84-2 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	((2R,3R)-butane-2,3-diyl)bis(diphenylphosphane)
Synonyms	(R,R)-2,3-bis(diphenylphosphanyl)butane; (2R,3R)-(+)-2,3-BIS(DIPHENYL PHOSPHINO)BUTANE; bis(diphenylphosphino)-1,2-dimethylethane; R,R-Chiraphos; (2R,3R)-(+)-Bis(diphenylphosphino)butane (R,R)-CHIRAPHOS; (2R,3R)-2,3-Bis(diphenylphosphino)butan; (-)-(2S,3S)-bis(diphenylphosphino)butane;
CAS No.	74839-84-2
Molecular Formula	C28H28P2
Molecular Weight	426.46900
PSA	27.18000
LogP	6.02920

Properties

Boiling Point	529.2ºC at 760 mmHg
Melting Point	104-109ºC
Flash Point	291.2ºC

Safety Info

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

Synthesis Route

(R,R)-2,3-Bis(diphenylphosphinoyl)butane→((2R,3R)-butane-2,3-diyl)bis(diphenylphosphane)
2,3-di[bis(phenylphosphinyl)]buta-1,3-diene→((2R,3R)-butane-2,3-diyl)bis(diphenylphosphane)
Chlorodiphenylphosphine→((2R,3R)-butane-2,3-diyl)bis(diphenylphosphane)

Precursor

Chlorodiphenylphosphine
2,3-di[bis(phenylphosphinyl)]buta-1,3-diene
Triphenylphosphine
(R,R)-2,3-Bis(diphenylphosphinoyl)butane

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