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1445-45-0 - Trimethyl orthoacetate, 98% - 1,1,1-Trimethoxyethane - L13369 - Alfa Aesar

L13369 Trimethyl orthoacetate, 98%

CAS-Nummer
1445-45-0
Synonyme
1,1,1-Trimethoxyethane

Größe Preis ($) Menge Verfügbarkeit
50ml 33,30
250ml 88,00
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Trimethyl orthoacetate, 98%

MDL
MFCD00008477
EINECS
215-892-9

Chemische Eigenschaften

Formel
C5H12O3
Molmasse
120.15
Siedepunkt
107-109°
Flammpunkt
16°(60°F)
Dichte
0.956
Brechungsindex
1.3890
Sensitivität
Moisture Sensitive
Löslichkeit
It hydrolyzes in water.

Anwendungen

Trimethyl orthoacetate is used as a diols can be protected as their 1-methoxyethylidene cyclic acetals (2-methoxy-2-methyl-1,3-dioxolanes) by acid-catalyzed exchange. It is mainly used as the chemical intermediates of the medicine. Some of the other applications includes it is mainly used as chemical intermediate of pharmaceutical and agricultural chemicals, used for compound medical intermediates of vitamin B1, vitamin A1 and sulfanilamide organism, used for dye and spices industry, Medicine, agricultural chemicals, paint additives.

Bemerkungen

Moisture Sensitive. Keep container tightly closed in a dry and well-ventilated place. Keep away from oxidizing agents. Stable under recommended storage conditions.

Literaturverweise

HPM Fromageot.; BE Griffin.; CB Reese.; JE Sulston. The synthesis of oligoribonucleotides—III: Monoacrylation of ribonucleosides and derivativesvia orthoester exchange. Tetrahedron. 1967, 23,(5), 2315-2331.

T Yoshino.; S Imori.; H Togo. Efficient esterification of carboxylic acids and phosphonic acids with trialkyl orthoacetate in ionic liquid. Tetrahedron. 2006, 62,(6), 1309-1317.

Diols can be protected as their 1-methoxyethylidene cyclic acetals (2-methoxy-2-methyl-1,3-dioxolanes) by acid-catalyzed exchange; see, e.g.: J. Am. Chem. Soc., 95, 278 (1973). See also Triethyl­ orthoacetate, L06004.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H225-H315-H319-H335

Highly flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Sicherheitshinweise: P210-P261-P280-P240-P303+P361+P353-P305+P351+P338-P304+P340-P362-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. Ground/bond container and receiving equipment. 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 INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Beilstein
1098338
Gefahrenklasse
3
Verpackungsgruppe
II
Harmonized Tariff Code
2915.90
TSCA
Yes

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