Trimethylorthoformiat Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R11:Leichtentzündlich.
R36:Reizt die Augen.
S-S?tze Betriebsanweisung:
S9:Beh?lter an einem gut gelüfteten Ort aufbewahren.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S29:Nicht in die Kanalisation gelangen lassen.
Beschreibung
Trimethyl orthoformate is an effective solvent for thallium(III) nitrate-mediated oxidations. It undergoes acid catalyzed reaction with 6-(N-D-ribitylanilino) uracils to form 8-demethyl-8-hydroxy-5-deazariboflavins.
Chemische Eigenschaften
Colorless liquid. Slightly soluble in water, miscible with alcohol and oils.
Very diffusive, ethereal, pungent or nauseating odor, pleasant in dilution, slightly wineyfruity, Brandy-like.
Sweet taste in concentrations below 100 ppm.
Barely perceptible at 10 ppm.
Verwenden
Trimethyl Orthoformate is the most simple orthoester. Used in organic synthesis as a reagent for introducing a protecting group for aldehydes and in the creation of methoxymethylene groups and heterocyclic ring systems.
Application
Trimethyl orthoformate was used as dehydrating agent in the preparation of surface-modified colloidal silica nanoparticles.
MOM protection of Diols using Trimethyl Orthoformate
N-Formylation of Amino Acid Esters
Allgemeine Beschreibung
Trimethyl orthoformate is an effective solvent for thallium(III) nitrate-mediated oxidations. It undergoes acid catalyzed reaction with 6-(
N-D-ribitylanilino) uracils to form 8-demethyl-8-hydroxy-5-deazariboflavins.
Sicherheitsprofil
A skin and eye irritant.
A very dangerous fire hazard when exposed
to heat or flame; can react with oxidizing
materials. Hazardous to prepare. To fight
fire, use CO2, fog, haze. When heated to
decomposition it emits acrid smoke and
irritating fumes. See also ESTERS.
Vorsichtsma?nahmen
Moisture sensitive. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with acids and strong oxidizing agents.
Einzelnachweise
Protection for the Hydroxyl Group, Including 1,2- and 1,3-Diols
P. G. M. Wuts, in Greene's Protective Groups in Organic Synthesis, 5th ed., ed. by P. G. M. Wuts, John Wiley & Sons, Inc., Hoboken, New Jersey, 2014, Chap. 2, 17.
A Facile Procedure for the Synthesis of N-Formyl Amino Acid Esters
T. Chancellor, C. Morton, Synthesis 1994, 10, 1023.
Trimethylorthoformiat Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
6-bromoquinolin-4(3H)-one
6-BROMO-4-CHLOROQUINOLINE
3,6-Dihydro-4-methoxy-2H-pyran
4-TRIFLUOROMETHYL-N-METHYLANILINE 97
Pipemidinsure
Methylmethansulfonat
N-Methyl-m-anisidin
N-Methyl-4-anisidin
ETHYL 5-AMINO-1-PYRIDIN-2-YL-1H-PYRAZOLE-4-CARBOXYLATE
N-Boc-5,6,7,8-tetrahydro-3-methoxy-[1,2,4]triazolo[4,3-A]pyrazine ,98%
Methyltrifluoracetat
4,7-DIMETHOXY-1,10-PHENANTHROLINE, 97%
Tetramethoxyethylene
Tribrommethan
THEBAINE
1,1-Dimethoxy-2-methylundecan
Dimethyl-[S(R*,R*)]-tartrat
p-(Dimethoxymethyl)anisol
6,7-DIHYDRO-2-PHENYL-5H-PYRROLO[2,1-C]-1,2,4-TRIAZOLIUM CHLORIDE
BASIC RED 12