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| | YTTERBIUM(III) TRIFLUOROMETHANESULFONATE HYDRATE Basic information |
| | YTTERBIUM(III) TRIFLUOROMETHANESULFONATE HYDRATE Chemical Properties |
| Melting point | 8 °C | | storage temp. | Inert atmosphere,Room Temperature | | solubility | Methanol | | form | Powder | | color | White to Off-White | | Sensitive | Hygroscopic | | Hydrolytic Sensitivity | 6: forms irreversible hydrate | | Merck | 14,10106 | | Stability: | Hygroscopic | | CAS DataBase Reference | 54761-04-5(CAS DataBase Reference) |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-36 | | RIDADR | UN 3261 8/PG 2 | | WGK Germany | 3 | | F | 3-10 | | Hazard Note | Irritant/Hygroscopic | | TSCA | No | | HazardClass | 8 | | PackingGroup | III | | HS Code | 28469099 |
| | YTTERBIUM(III) TRIFLUOROMETHANESULFONATE HYDRATE Usage And Synthesis |
| Uses | Ytterbium(III) Trifluoromethanesulfonate functions as a catalyst in the organic synthesis of heterocycles. Also functions as a Lewis acid in variety of organic reactions. | | Uses | Versatile rare earth metal catalyst in organic synthesis. | | Preparation | Ytterbium(III) Trifluoromethanesulfonate is prepared by addition of an excess of ytterbium(III) oxide (commercially available, 99.9%) to an aqueous
solution of Trifluoromethanesulfonic Acid (50% v/v) followed by heating at boiling for 0.5-1 h. The mixture is then purified
by filtration to remove unreacted ytterbium oxide; residual water is removed under reduced pressure. The resultant hydrate is
dried by heating under vacuum (1 mmHg) at 180 to 200 °C for 48 h. The reagent is then used without further purification.[1] The
organoytterbium reagent is prepared at -78 °C from Yb(OTf)3 and organolithiums or organomagnesiums.[2] | | reaction suitability | core: ytterbium
reagent type: catalyst | | storage | Ytterbium(III) Trifluoromethanesulfonate forms hydrates in aqueous media in the presence of amines; however, it
survives mild aqueous workup. | | References | 1. Forsberg, J. H.; Spaziano, V. T.; Balasubramanian, T. M.; Liu, G. K.; Kinsley, S. A.; Duckworth, C. A.; Poteruca, J. J.; Brown, P. S.;
Miller, J. L. JOC 1987, 52, 1017.
2. Molander, G. A.; Burkhardt, E. R.; Weinig, P. JOC 1990, 55, 4990 |
| | YTTERBIUM(III) TRIFLUOROMETHANESULFONATE HYDRATE Preparation Products And Raw materials |
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