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18297-63-7 - N,N'-Bis(trimethylsilyl)urea, 98+% - BSU - L01301 - Alfa Aesar

L01301 N,N'-Bis(trimethylsilyl)urea, 98+%

Codice CAS
18297-63-7
Sinonimi
BSU

Dimensioni Prezzo ($) Quantità Disponibilità
50g 19,60
250g 72,40
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N,N'-Bis(trimethylsilyl)urea, 98+%

MDL
MFCD00008260
EINECS
242-177-9

Proprietà chimiche

Formula
C7H20N2OSi2
Peso formula
204.42
Punto di fusione
ca 230° dec.
Sensibilità
Moisture Sensitive
Solubilità
Reacts with water.

Applicazioni

N,N'-Bis(trimethylsilyl)urea is used as a reagent for the silylation of alcohols and carboxylic acids.

Note

Moisture Sensitive

Letteratura

A. Blencowe.; L. Davidson.; W. Hayes. Synthesis and characterization of hyperbranched polyesters incorporating the AB2 monomer 3,5-bis(3-hydroxylprop-1-ynyl)benzoic acid. European Polymer Journal. 2003, 39, (10), 1955-1963.

Andrei K. Yudi.; Jay P. Chiang.; Hans Adolfsson.; Christophe Coperet. Olefin Epoxidation with Bis(trimethylsilyl) Peroxide Catalyzed by Inorganic Oxorhenium Derivatives. Controlled Release of Hydrogen Peroxide. J. Org. Chem. 2001, 66, (13), 4713-4718.

Useful reagent for the silylation of alcohols and carboxylic acids: Synthesis, 807 (1981). See Appendix 4. Generally no catalyst is required and the urea formed as by-product can be removed by filtration. For O-silylation catalyzed by TBAF (0.02 equiv.) under mild conditions, see: Tetrahedron Lett., 35, 8409 (1994). Review: Synthesis, 357 (1998).

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H315-H319-H335

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

Dichiarazioni precauzionali: 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.

Altri riferimenti

Beilstein
1937452
Codice tariffe armonizzato
2931.90
TSCA
Yes

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