Tetraethyl orthocarbonate

Tetraethyl orthocarbonate Basic information
Product Name:Tetraethyl orthocarbonate
Synonyms:ORTHOCARBONIC ACID TETRAETHYL ESTER;TETRAETHOXYMETHANE;TETRAETHYL ORTHOCARBONATE;1-(Triethoxymethoxy)ethane;1,1’,1’’,1’’’-[methanetetrayltetrakis(oxy)]tetrakis-ethan;Tetraehtylorthocarbonate;[methanetetrayltetrakis(oxy)]tetrakis-;Ethane, 1,1‘,1‘‘,1‘‘‘-
CAS:78-09-1
MF:C9H20O4
MW:192.25
EINECS:201-082-2
Product Categories:Acetals/Ketals/Ortho Esters;Organic Building Blocks;Oxygen Compounds;78-09-1
Mol File:78-09-1.mol
Tetraethyl orthocarbonate Structure
Tetraethyl orthocarbonate Chemical Properties
Melting point 222 °C
Boiling point 159 °C (lit.)
density 0.919 g/mL at 25 °C (lit.)
refractive index n20/D 1.392(lit.)
Fp 127 °F
storage temp. Inert atmosphere,Room Temperature
solubility soluble in Chloroform, Methanol
form clear liquid
color Colorless to Almost colorless
Specific Gravity0.919
Water Solubility Insoluble
Sensitive Moisture Sensitive
BRN 1747401
CAS DataBase Reference78-09-1(CAS DataBase Reference)
NIST Chemistry ReferenceEthane, 1,1',1'',1'''-[methanetetrayltetrakis(oxy)]tetrakis-(78-09-1)
EPA Substance Registry SystemEthane, 1,1',1'',1'''-[methanetetrayltetrakis(oxy)]tetrakis- (78-09-1)
Safety Information
Hazard Codes Xi,F
Risk Statements 10-36/37/38
Safety Statements 37/39-26-16-36-24/25
RIDADR UN 3272 3/PG 3
WGK Germany 3
21
HazardClass 3
PackingGroup III
HS Code 29209010
MSDS Information
ProviderLanguage
Tetraethoxymethane English
ACROS English
SigmaAldrich English
ALFA English
Tetraethyl orthocarbonate Usage And Synthesis
Chemical Propertiesclear colorless liquid
UsesTetraethyl Orthocarbonate is used in the synthesis of chemokine receptor-5 inhibitors against HIV-1, benzobisoxazoles and in the preparation of organic semiconductors. It is also employed in the synthesis of 2,7-dimethylene-1,4,6,9-tetraoxaspiro[4,4]nonane and in the synthesis of cross linked poly(orthocarbonate)s used as organic solvent absorbent.
Purification MethodsLikely impurities are hydrolysis products. Shake the orthocarbonate with brine (saturated NaCl, dilute with a little Et2O if amount of material is small) and dry (MgSO4). The organic layer is filtered off and evaporated, and the residue is distilled through a helices packed fractionating column with a total reflux partial take-off head. All distillations can be done at atmospheric pressure in an inert atmosphere (e.g. N2). [Roberts & McMahon Org Synth Coll Vol IV 457 1963, Connolly & Dyson J Chem Soc 828 1937, Tieckelmann & Post J Org Chem 13 266 1948, for review see Kantlehner et al. Justus Liebigs Ann Chem 507 207 1982, Beilstein 3 IV 6.]
Tetraethyl orthocarbonate Preparation Products And Raw materials
Preparation ProductsPrednicarbate-->Ethyl-2-Ethoxy-1-[[(2'-Cyanobiphenyl-4-yl) Methyl] Benzimidazole]-7-Carboxylate-->1,2,3-TRIPHENYLGUANIDINE-->Tetramethoxymethane-->3,5-DIMETHYL-4-HEPTANONE-->1H-Benzimidazole,2-ethoxy-1-methyl-(9CI)-->Methyl 1-[(2'-cyanobiphenyl-4-yl)methyl]-2-ethoxy-1H-benzimidazole-7-carboxylate-->1H-Benzimidazole,2-ethoxy-(9CI)
1,1,1-Trimethoxypentane Triethyl orthoformate Trimethyl orthoacetate Tetramethoxymethane Triethyl orthoacetate TETRA-N-PROPOXYMETHANE TEPP 2,2',2'',2'''-[methanetetrayltetrakis(oxy)]tetrakispropane Diethyl pyrocarbonate SILICON TETRAACETATE Ethyl methyl carbonate Tetraethyl orthosilicate Tetraethyl orthocarbonate TETRAKIS(2,2,3,3-TETRAFLUOROPROPYL)ORTHOCARBONATE TETRAKIS(2,2,3,3,4,4,5,5,6,6,7,7-DODECAFLUOROHEPTYL)ORTHOCARBONATE TETRAKIS(2,2,3,3,4,4,5,5-OCTAFLUOROPENTYL)ORTHOCARBONATE Diethyl carbonate METHANE

Email:[email protected] [email protected]
Copyright © 2024 Mywellwork.com All rights reserved.