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14470-28-1 - 4-Methoxytrityl chloride, 97% - p-Anisylchlorodiphenylmethane - 4-Methoxytriphenylmethyl chloride - A10545 - Alfa Aesar

A10545 4-Methoxytrityl chloride, 97%

CAS-Nummer
14470-28-1
Synonyme
p-Anisylchlorodiphenylmethane
4-Methoxytriphenylmethyl chloride

Größe Preis ($) Menge Verfügbarkeit
10g 35,43
50g 125,66
250g 450,40
Zum Warenkorb hinzufügen Zur Angebotsanfrage hinzufügen Artikel anzeigen

4-Methoxytrityl chloride, 97%

MDL
MFCD00000814
EINECS
238-463-8

Chemische Eigenschaften

Formel
C20H17ClO
Molmasse
308.81
Schmelzpunkt
121-125°
Sensitivität
Moisture Sensitive
Löslichkeit
Soluble in toluene.

Anwendungen

It is used as selective protecting reagent that is used for primary hydroxyl groups.

Bemerkungen

It is hygroscopic. Incompatible with oxidizing agents.

Literaturverweise

Reagent for protection of alcohols, cf Chlorotriphenyl­methane, A11799, as their monomethoxytrityl (Mmt) ethers, intermediate in acid-lability between trityl (Trt) and dimethoxytrityl (Dmt); see 4,4'-Dimethoxytrityl­ chloride, A11626. For use of DMAP as a catalyst for methoxytritylation of alcohols and amines, see: Tetrahedron Lett., 21, 3899 (1980); J. Org. Chem., 47, 571 (1982); Chem. Lett., 15 (1982).

In a comparison with Dmt for N-protection during solid-phase peptide synthesis, the N-Mmt group was found to survive intact whereas N-Dmt derivatives decomposed slowly in protic solvents: Tetrahedron. Lett., 39, 1733 (1998).

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H315-H319-H335

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

Sicherheitshinweise: 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.

Weitere Referenzen

Beilstein
798425
Harmonized Tariff Code
2909.30
TSCA
No

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