| Identification | More | [Name]
LANTHANUM TRIFLUOROMETHANESULFONATE | [CAS]
52093-26-2 | [Synonyms]
LANTHANUM(III) TRIFLATE
LANTHANUM(III) TRIFLUOROMETHANESULFONATE
LANTHANUM TRIFLATE
LANTHANUM TRIFLUOROMETHANESULFONATE
LANTHANUM TRIFLUOROMETHANESULPHONATE
TRIFLUOROMETHANESULFONIC ACID LANTHANUM(III) SALT
TRIFLUOROMETHANESULFONIC ACID LANTHANUM SALT
Lanthanum(III) trifluoromethanesulfonate, 99.999% metals basis
LANTHANUM TRIFLUOROMETHANESULFONATE, ANHYDROUS
Lanthanum(III)trifluoromethanesulfonate,min.97%(Lanthanumtriflate)
Lanthanum trifluoromethanesulphonate 98%
Lanthanumtrifluoromethanesulphonate98%
Lanthanum(III) triflate, Trifluoromethanesulfonic acid lanthanum salt
Tri(trifluoromethylsulfonyloxy) lanthanum
Tris(trifluoromethanesulfonic acid)lanthanum salt
Tris(trifluoromethylsulfonyloxy) lanthanum
Tris[(trifluoromethyl)sulfonyloxy] lanthanum | [EINECS(EC#)]
628-666-3 | [Molecular Formula]
C3F9LaO9S3 | [MDL Number]
MFCD00077560 | [Molecular Weight]
586.11 | [MOL File]
52093-26-2.mol |
| Chemical Properties | Back Directory | [Appearance]
white to light beige crystalline powder | [Melting point ]
>300°C | [density ]
1.7
| [storage temp. ]
Refrigerator | [solubility ]
Water (Slightly) | [form ]
Crystalline Powder | [color ]
White to light beige | [Water Solubility ]
Soluble in water. | [Hydrolytic Sensitivity]
6: forms irreversible hydrate | [Sensitive ]
Hygroscopic | [BRN ]
9009103 | [Stability:]
hygroscopic | [InChI]
InChI=1S/3CHF3O3S.La/c3*2-1(3,4)8(5,6)7;/h3*(H,5,6,7);/q;;;+3/p-3 | [InChIKey]
WGJJZRVGLPOKQT-UHFFFAOYSA-K | [SMILES]
C(F)(S([O-])(=O)=O)(F)F.C(F)(F)(F)S([O-])(=O)=O.C(F)(F)(F)S([O-])(=O)=O.[La+3] | [CAS DataBase Reference]
52093-26-2(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [RIDADR ]
UN 1759 8/PG III | [WGK Germany ]
3 | [F ]
3-10 | [Hazard Note ]
Irritant | [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
28469099 |
| Hazard Information | Back Directory | [Description]
Lanthanum trifluoromethanesulfonate is a Lewis acid catalyst useful for aldol, Michael, Diels-Alder, and other C-C bond forming reactions; also useful for preparing organolanthanum reagents, which react with hindered tertiary amides to afford ketones. | [Chemical Properties]
white to light beige crystalline powder | [Uses]
Lanthanum trifluoromethanesulfonate(52093-26-2) is used in the Aldol reaction of silyl enol ethers with aldehydes. It is an effective catalyst for the Baylis-Hillman reaction. It also catalyzes Michael additions to methyl vinyl ketone in water.
| [reaction suitability]
core: lanthanum
reagent type: catalyst | [Synthesis]
To an aqueous solution of triflic acid (50% v/v), a slight excess of lanthanum oxide (La2O3) is added; the resulting mixture is stirred for 15 min at rt and then filtered to remove the unreacted oxide; the filtrate is concentrated in vacuo at about 60 °C; residual water is removed by azeotropic distillation with toluene in vacuo to dryness; the resulting hydrate is placed in a flask equipped with a stirring bar, a stopcock filled with a glass wool plug, and a NaOH trap, and is then dehydrated by heating under vacuum (140 °C/0.1 mmHg or 180 °C/1.0 mmHg) for 16 h. The anhydrous Lanthanum trifluoromethanesulfonate La(OTf)3 is a white to gray-white solid. | [storage]
Anhydrous La(OTf)3 is hygroscopic and should be stored and weighed in a glove-box. Use in a fume hood. |
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