Consentement d'utilisation des Cookies

J'accepte Notre site sauvegarde des traceurs textes (cookies) sur votre appareil afin de vous garantir de meilleurs contenus et à des fins de collectes statistiques.Vous pouvez désactiver l'usage des cookies en changeant les paramètres de votre navigateur. En poursuivant votre navigation sur notre site sans changer vos paramètres de navigateur vous nous accordez la permission de conserver des informations sur votre appareil.

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

L20252 Dysprosium(III) trifluoromethanesulfonate, 98%

Numéro CAS
139177-62-1
Synonymes
Dysprosium(III) triflate

Dimensions Prix ($) Quantité Disponibilité
5g 51,91
25g 140,40
Ajouter au panier Ajouter au devis en vrac Afficher l'article

Dysprosium(III) trifluoromethanesulfonate, 98%

MDL
MFCD00209583

Propriétés chimiques

Formule
C3DyF9O9S3
Poids formulaire
609.69
Sensibilité
Hygroscopic
Solubilité
Soluble in water.

Applications

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.

Notes

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-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/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. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Code tarifaire harmonisé
2846.90
TSCA
No

Recommandé

  • A15552

    Propylene carbonate, 99%
  • A15928

    N-Benzyloxycarbonylglycine, 98+%
  • A17851

    N-Benzyl-n-butylamine, 98%
  • L20251

    Cerium(III) trifluoromethanesulfonate, 98%
  • H60034

    Iron(III) trifluoromethanesulfonate, tech. 90%

Consulté récemment

Produits chimiques

Sciences de la vie

Métaux et matériaux

Catalyseurs

Analytique et matériel de laboratoire