(-)-4,5-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane
[CAS# 32305-98-9]

Identification

• Classification: Chemical reagent >> Organic reagent >> Phosphine ligand
• Name: (-)-4,5-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane
• Synonyms: (-)-DIOP; (4R,5R)-4,5-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane; (4R,5R)-DIOP; (4R,5R)-trans-4,5-Bis[(diphenylphosphino)methyl]-2,2-dimethyl-1,3-dioxolane; (R)-DIOP; (R,R)-DIOP; [[(4R,5R)-2,2-Dimethyl-1,3-dioxolane-4,5-diyl]bis(methylene)]bis[diphenylphosphine]
• Molecular Formula: C₃₁H₃₂O₂P₂
• Molecular Weight: 498.53
• CAS Registry Number: 32305-98-9
• EC Number: 250-984-2

Properties

• Solubility: Insoluble (2.1E^-5 g/L) (25 °C), Calc.^*
• Melting point: 89-90 °C^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2013 ACD/Labs)

^** Nindakova, L. O.

Safety Data

• Hazard Symbols: Xi
• Risk Statements: R36/37/38
• Safety Statements: S26;S36/37

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335