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430609

Sigma-Aldrich

Lanthanum(III) trifluoromethanesulfonate

99.999% trace metals basis

Synonym(s):

La(OTf)3, Lanthanum tris(trifluoromethanesulfonate), Tris(trifluoromethanesulfonato)lanthanum, Lanthanum(III) triflate, Trifluoromethanesulfonic acid lanthanum salt

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About This Item

Linear Formula:
(CF3SO3)3La
CAS Number:
52093-26-2
Molecular Weight:
586.11
Beilstein:
9009103
MDL number:
MFCD00077560
UNSPSC Code:
12161600
PubChem Substance ID:
24866932
NACRES:
NA.22
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Assay

99.999% trace metals basis

reaction suitability

core: lanthanum
reagent type: catalyst

SMILES string

[La+3].[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F

InChI

1S/3CHF3O3S.La/c3*2-1(3,4)8(5,6)7;/h3*(H,5,6,7);/q;;;+3/p-3

InChI key

WGJJZRVGLPOKQT-UHFFFAOYSA-K

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Application

A water-tolerant Lewis acid used in the Aldol reaction of silyl enol ethers with aldehydes.[1]

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCS1989
MKCP5873
MKCD1173
MKBV3435V
MKBQ8457V

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Jie Wu et al.
Bioresource technology, 324, 124664-124664 (2021-01-18)
Previous work has shown that sulfonation and oxidation of chemi-thermomechanical pulps (CTMPs) significantly enhanced enzyme accessibility to cellulose while recovering the majority of carbohydrates in the water-insoluble component. In the work reported here, modified (sulfonated and oxidized) CTMPs derived from
Yusuke Imazaki et al.
Journal of the American Chemical Society, 134(36), 14760-14763 (2012-08-25)
Aryl triflates were transformed to aryl bromides/iodides simply by treating them with LiBr/NaI and [Cp*Ru(MeCN)(3)]OTf. The ruthenium complex also catalyzed the transformation of alkenyl sulfonates and phosphates to alkenyl halides under mild conditions. Aryl and alkenyl triflates undergo oxidative addition
Gang Liu et al.
Chemical communications (Cambridge, England), 48(56), 7049-7051 (2012-06-12)
An unexpected silver triflate-catalyzed tandem reaction of N'-(2-alkynylbenzylidene)hydrazide with ketene through 6-endo-cyclization, [3+2] cycloaddition and rearrangement is reported. This reaction proceeds efficiently to generate the molecular complexity with the formation of four bonds in a one-pot procedure.
Dennis M Whitfield
Carbohydrate research, 356, 180-190 (2012-04-25)
The Transition State (TS) for any chemical glycosylation reaction is not known with certainty. Both experimental and computational approaches have been limited due to the complexity of the problem. This work describes a preliminary computational ionization approach using density functional
B V Subba Reddy et al.
Organic letters, 15(3), 464-467 (2013-01-18)
A novel method has been devised for the synthesis of 2,4,5-trisubstituted pyrrole derivatives through the coupling of α-diazoketones with β-enaminoketones and esters using 10 mol % of Cu(OTf)(2). A wide range of 2,3-disubstituted indole derivatives were also prepared from α-diazoketones
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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