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6279-86-3 - Triethyl methanetricarboxylate, 98% - Methanetricarboxylic acid triethyl ester - Tris(carboethoxy)methane - L08356 - Alfa Aesar

L08356 Triethyl methanetricarboxylate, 98%

Codice CAS
6279-86-3
Sinonimi
Methanetricarboxylic acid triethyl ester
Tris(carboethoxy)methane

Dimensioni Prezzo ($) Quantità Disponibilità
5g 21,13
25g 63,14
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Triethyl methanetricarboxylate, 98%

MDL
MFCD00009150
EINECS
228-477-2

Proprietà chimiche

Formula
C10H16O6
Peso formula
232.23
Punto di fusione
26-29°
Punto di ebollizione
253°
Punto di infiammabilità
>110°(230°F)
Densità
1.095
Indice di rifrazione
1.4255
Solubilità
Insoluble in water.

Applicazioni

Methanetricarboxylates have been used as "blocked" malonic esters, restricting reaction with alkyl halides to monoalkylation. The unwanted carboxyl group can be removed by treatment with Na alkoxide, LDA or BCl3. Provides a useful 2-carbon chain extension method that adds to Michael acceptors under phase-transfer conditions. Triethyl Methanetricarboxylate is used in the synthesis of novel inhibitors of Hsp90. It is also used in the preparation of novel dihydroquinoline-3-carboxylic acids that function as HIV-1 integrase inhibitors.

Note

Store away from oxidizing agents. Keep the container tightly closed and place it in a cool, dry and well ventilated condition.

Letteratura

Giancarlo Cravotto, et al. Dehydrative alkylation of alcohols with triethyl methanetricarboxylate under Mitsunobu conditions.Tetrahedron.,1996,50(40), 13007-13016.

Teruaki Mukaiyama, et al. Stereoselective Carbon-Carbon Bond Forming Reactions between Various Chiral Alkyl Aryl Carbinols and Triethyl Methanetricarboxylate by Oxidation-Reduction Condensation Using Alkyl Diphenylphosphinites.Chem. Lett.,2005,34(12), 1676-1677.

Methanetricarboxylates have been used as "blocked" malonic esters, restricting reaction with alkyl halides to monoalkylation. The unwanted carboxyl group can be removed by treatment with Na alkoxide, LDA or BCl3: J. Org. Chem., 44, 3492 (1979). Adds to Michael acceptors under phase-transfer conditions, providing a useful 2-carbon chain extension method: Synthesis, 1125 (1990):

Under similar conditions, diethyl malonate gives only 36% yield.

The tricarboxylate also undergoes free-radical addition to the terminal position of alkenes: Angew. Chem. Int. Ed., 5, 586 (1966). Arylation with electron-rich aromatics is promoted by Mn(III): Synthesis, 567 (1991).

Altri riferimenti

Beilstein
1793645
Codice tariffe armonizzato
2917.19
TSCA
No

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