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139177-62-1 - Dysprosium(III) trifluoromethanesulfonate, 98% - Dysprosium(III) triflate - L20252 - Alfa Aesar

L20252 Dysprosium(III) trifluoromethanesulfonate, 98%

Numéro de CAS
Dysprosium(III) triflate

Conditionnement Prix ($) Quantité Disponibilité
5g 51,90
25g 159,00
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Dysprosium(III) trifluoromethanesulfonate, 98%


Propriétés chimiques

Poids moleculaire
Soluble in water.


Dysprosium(III) trifluoromethanesulfonate is a water-tolerant Lewis acid used in the Aldol reaction of silyl enol ethers with aldehydes. This is an effective catalyst for electrophilic substitution reactions of indoles with imines. Also used as catalyst for Aza-Piancatelli rearrangement, Friedel-Crafts alkylation, ring-opening polymerization reactions, microwave-assisted Kabachnik-Fields condensation, cycloaddition reactions (Lewis-acid catalyst), fries rearrangement and enantioselective glyoxalate-ene reactions.


Hygroscopic. store away from water/moisture. Store in cool. Keep container tightly closed in a dry and well-ventilated place. Store away from oxidizing agent.

Références bibliographiques

Leoni I Palmer; Javier Read de Alaniz. Direct and highly diastereoselective synthesis of azaspirocycles by a dysprosium(III) triflate catalyzed aza-Piancatelli rearrangement. Angewandte Chemie. International edition in English. 2011, 50 (31), 7167-7170.

Patrick D Pohlhaus; Shanina D Sanders; Andrew T Parsons; Wei Li, Jeffrey S Johnson. Scope and mechanism for lewis acid-catalyzed cycloadditions of aldehydes and donor-acceptor cyclopropanes: evidence for a stereospecific intimate ion pair pathway. Journal of the American Chemical Society. 2008, 130 (27), 8642-8650.

The uses of rare-earth metal triflates in organic synthesis have been reviewed by S. Kobayashi: Synlett, 689 (1994); Chem. Rev., 102, 2227 (2002).

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Mentions de prudence: P261-P280a-P305+P351+P338-P304+P340-P405-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Code tarifaire harmonisé


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  • A15928

    N-Benzyloxycarbonylglycine, 98+%
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  • L20251

    Cerium(III) trifluoromethanesulfonate, 98%
  • H60034

    Iron(III) trifluoromethanesulfonate, tech. 90%

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