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.

18618-55-8 - Cerium(III) chloride heptahydrate, 99% - Cerous chloride heptahydrate - A12947 - Alfa Aesar

A12947 Cerium(III) chloride heptahydrate, 99%

Numéro CAS
18618-55-8
Synonymes
Cerous chloride heptahydrate

Dimensions Prix ($) Quantité Disponibilité
50g 30,69
250g 97,03
1000g 311,06
Ajouter au panier Ajouter au devis en vrac Afficher l'article

Cerium(III) chloride heptahydrate, 99%

MDL
MFCD00149634
EINECS
606-073-0

Propriétés chimiques

Formule
CeCl3•7H2O
Poids formulaire
372.60 (246.48anhy)
Sensibilité
Air Sensitive & Hygroscopic
Solubilité
Soluble in alcohol, water, and acetone. Slightly soluble in tetrahydrofuran.

Applications

Cerium(III) chloride heptahydrate is used in the preparation of allylsilanes from esters. It is used as a reducing agent in organic synthesis in place of sodium borohydride. In Luche reaction, carvone gives selectively allylic alcohol.

Notes

Air sensitive. Hygroscopic. Incompatible with strong acids and strong oxidizing agents.

Références bibliographiques

Reagent for selective cleavage of MEM ethers (see 2-Methoxyethoxymethyl­ chloride, L01050 ) under mild conditions: Org. Lett., 3, 1149 (2001).

Useful in modifying the reactivity of Sodium borohydride, 35788 , allowing selective reduction of ketones in the presence of aldehydes: J. Am. Chem. Soc., 101, 5848 (1979), and giving increased selectivity for 1,2-reduction of enones to allylic alcohols: J. Chem. Soc., Chem. Commun., 601 (1978); cyclohexenones can be reduced in an alkyl alcohol to give the alkyl allylic ether in high yield: Pol. J. Chem., 69, 1655 (1995).

With a catalytic amount of NaI in acetonitrile, dioxolanes (ethylene acetals) are deprotected to the parent carbonyl compounds: J. Org. Chem., 62, 4183 (1997), as are 4-methoxybenzyl ethers: J. Org. Chem., 64, 5696 (1999), and allyl ethers: Tetrahedron Lett., 40, 7293 (1999), to the parent alcohols. With a stoichiometric amount of NaI, alcohols can be converted to alkyl iodides: J. Org. Chem., 65, 2830 (2000), aryl alkyl ethers undergo dealkylation to phenols: Chem. Lett., 738 (2000), and selective deprotection of N-Boc protected tert-butyl amino acid esters can be achieved: J. Org. Chem., 66, 4430 (2001). Also deprotects the tert-butyl ethers of alcohols: Adv. Synth. Catal., 348, 905 (2006). For a review of the CeCl3•nH2O/NaI system,as an efficient, water-tolerant Lewis Acid promoter in organic synthesis, see: Synlett, 2101 (2003).

In combination with Zn in acetonitrile, promotes the Reformatsky reaction of Ethyl­ bromofluoroacetate, B21579 : J. Org. Chem., 67, 72 (2002).

For preparation of the anhydrous reagent and its use in combination with organolithium or Grignard reagents to suppress side reactions with carbonyl compounds, see: Org. Synth., 76, 228 (1998).

For a brief feature on uses of this reagent, see: Synlett, 1935 (2002).

Li, B.; Shao, X.; Hao, Y.; Zhao, Y. Ultrasonic-spray-assisted synthesis of metal oxide hollow/mesoporous microspheres for catalytic CO oxidation. RSC Adv. 2015, 5 (104), 85640-85645.

Ogata, T.; Narita, H.; Tanaka, M. Adsorption behavior of rare earth elements on silica gel modified with diglycol amic acid. Hydrometallurgy 2015, 152, 178-182.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H315-H319-H335-H303

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. May be harmful if swallowed.

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

Merck
14,1997
Code tarifaire harmonisé
2846.10
TSCA
Yes
RTECS
FK5100000

Recommandé

  • A10324

    Bisphenol A, 97+%
  • A12005

    Pyridine, 99+%
  • 11193

    Ytterbium(III) chloride hydrate, REacton®, 99.9% (REO)
  • 11329

    Cerium(III) nitrate hexahydrate, REacton®, 99.5% (REO)
  • 12104

    Zirconium(IV) chloride, Reactor Grade, 99.5+% (metals basis)

Consulté récemment

Produits chimiques

Sciences de la vie

Métaux et matériaux

Catalyseurs

Analytique et matériel de laboratoire