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10026-11-6 - Zirconium(IV) chloride, 98%, cont. 1-2% hafnium(IV) chloride - Zirconium tetrachloride - L14891 - Alfa Aesar

L14891 Zirconium(IV) chloride, 98%, cont. 1-2% hafnium(IV) chloride

Numéro CAS
10026-11-6
Synonymes
Zirconium tetrachloride

Dimensions Prix ($) Quantité Disponibilité
50g 21,22
250g 60,15
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Zirconium(IV) chloride, 98%, cont. 1-2% hafnium(IV) chloride

MDL
MFCD00011306
EINECS
233-058-2

Propriétés chimiques

Formule
ZrCl4
Poids formulaire
233.03
Point de fusion
331° subl.
Densité
2.803
Sensibilité
Moisture Sensitive
Solubilité
Reacts with water.

Applications

Zirconium(IV) chloride catalyzes the trans-hydrostannylation of acetylenes with Tri-n-butyl­tin hydride. It is used as a superior catalyst for the fries rearrangement of aryl acetates, giving the least hindered ortho-acetyl phenol in high yields at ambient temperatures. In the presence of ZrCl4, chloromethyl ethers are formed under mild conditions from acid chlorides and trioxane or paraformaldehyde.

Notes

Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Handle and store under inert gas. It is sensitive to moisture. Incompatible with bases and oxidizing agents.

Références bibliographiques

Ch.Venkateshwar Reddy.; M Mahesh, P.V.K Raju.; T.Ramesh Babu.; V.V.Narayana Reddy. Zirconium(IV) chloride catalyzed one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones. Tetrahedron Letters. 2002, 43 (14), 2657-2659.

Harish K Patney.; Simon Margan. Zirconium(IV) chloride-silica catalysed thioacetalisation of carbonyl compounds. Tetrahedron Letters. 1996, 37 (26), 4621-4622.

Lewis acid. Promotes the rearrangement of hydroxy sulfones to ketones: J. Chem. Soc., Chem. Commun., 2289 (1994).

Catalyzes the trans-hydrostannylation of acetylenes with Tri-n-butyl­tin hydride, A13298: J. Chem. Soc., Chem. Commun., 2405 (1995); J. Org. Chem., 61, 4568 (1996). Allylstannanes also add trans-selectively to acetylenes under similar conditions: J. Chem. Soc., Chem. Commun., 1513 (1996).

Superior catalyst for the Fries rearrangement of aryl acetates, giving the least hindered ortho-acetyl phenol in high yields at ambient temperatures: Tetrahedron Lett., 37, 7659 (1996).

In the presence of ZrCl4, chloromethyl ethers are formed under mild conditions from acid chlorides and trioxane or paraformaldehyde: Tetrahedron Lett., 43, 6317 (2002).

Highly efficient and reusable catalyst for acetylation of phenols, thiols, amines and alcohols under solvent-free conditions, claimed to be superior to metal triflates: Synlett, 627 (2004).

For a brief feature on uses of this reagent in synthesis, see: Synlett, 1073 (2003).

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H314-H318-H302

Causes severe skin burns and eye damage. Causes serious eye damage. Harmful if swallowed.

Mentions de prudence: P260-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P301+P312-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Call a POISON CENTER or doctor/physician if you feel unwell. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Merck
14,10174
Classe de danger
8
Groupe d'emballage
III
Code tarifaire harmonisé
2827.39
TSCA
Yes
RTECS
ZH7175000

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