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| | (-)-DIOP Basic information |
| Product Name: | (-)-DIOP | | Synonyms: | (2r,3r)-(-)-1,4-Bis(Diphenyl;(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane, 98% 1GR;(4R,5R)-(-)-4,5-Bis(diphenylphosphinoMethyl)-2,2-diMethyl-1,3-dioxolane,99% (R,R)-DIOP;(4R,5R)-(-)-Bis(diphenylphosphinomethyl)-2,2-dimethyl-1,3-dioxolane
(-)-DIOP
(2R,3R)-(-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane;)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(dipheny;(4R,5R)-(-)-2,2-Dimethyl-4,5-bis((diphenylphosphino)methyl)-1,3-dioxolane;(4R,5R)-(-)-4,5-Bis(diphenylphosphinoMethyl)-2,2-diMethyl-1,3-dioxolane,(R,R)-DIOP.;(4R,5R)-(-)-4,5-BIS(DIPHENYLPHOSPHINOMET | | CAS: | 32305-98-9 | | MF: | C31H32O2P2 | | MW: | 498.54 | | EINECS: | 250-984-2 | | Product Categories: | organophosphine ligand;DIOP Series;Chiral Phosphine;Asymmetric Synthesis;Dioxanes & Dioxolanes;Dioxolanes;Phosphine Ligands;Synthetic Organic Chemistry | | Mol File: | 32305-98-9.mol |  |
| | (-)-DIOP Chemical Properties |
| Melting point | 88-90 °C(lit.) | | alpha | -26° (c 2.0, CHCl3) | | Boiling point | 590.3±25.0 °C(Predicted) | | storage temp. | 2-8°C | | form | Powder | | color | white | | optical activity | [α]19/D 26°, c = 2.3 in chloroform | | Sensitive | Air Sensitive | | BRN | 1441045 |
| | (-)-DIOP Usage And Synthesis |
| Chemical Properties | white powder | | Uses | For the in situ preparation of chiral hydrogenation catalysts. | | General Description | (-)-2,3-O-Isopropylidene-2,3-dihydroxy-1,4-bis(diphenylphosphino)butane is a C2 chelating diphosphine ligand for transition metal complexes during asymmetric catalysis. | | Purification Methods | It has been recrystallised from *C6H6/pet ether. After 2 recrystallisations from EtOH, it was pure by TLC on silica gel using Me2CO/hexane as solvent. [Kagan & Dang J Am Chem Soc 94 6429 1972.] Lanthanide shift reagents See in “Aliphatic Compounds”, Chapter 4, europium (III) acetate above and Eu(tmc)3 and Eu(tfc)3 below. |
| | (-)-DIOP Preparation Products And Raw materials |
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