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Sodium ethoxide is commonly used as a base in the Claisen condensation [7] and malonic ester synthesis. [8] Sodium ethoxide may either deprotonate the α-position of an ester molecule, forming an enolate, or the ester molecule may undergo a nucleophilic substitution called transesterification. If the starting material is an ethyl ester, trans ...
Barbital, then called "Veronal", was first synthesized in 1902 by German chemists Emil Fischer and Joseph von Mering, who published their discovery in 1903. [2] Barbital was prepared by condensing diethylmalonic ester with urea in the presence of sodium ethoxide, or by adding at least two molar equivalents of ethyl iodide to the silver salt of malonylurea (barbituric acid) or possibly to a ...
For example, treating 2-Bromo-2-methyl butane with sodium ethoxide in ethanol produces the Zaytsev product with moderate selectivity. [9] Due to steric interactions, a bulky base – such as potassium tert-butoxide, triethylamine, or 2,6-lutidine – cannot readily abstract the proton that would lead to the Zaytsev product. In these situations ...
Sodium salt of ethyl xanthate (sodium ethylxanthate or sodium O-ethyl dithiocarbonate) Structure of a xanthate ester Cellulose xanthate (orange) A xanthate is a salt or ester of a xanthic acid. The formula of the salt of xanthic acid is [R−O−CS 2] − M + (where R is organyl group and M is usually Na or K). [1] Xanthate also refers to the ...
It may also be prepared from the reaction of sodium ethoxide, formed in-situ from sodium and absolute ethanol, and chloroform: [2] CHCl 3 + 3 Na + 3 EtOH → HC(OEt) 3 + 3 ⁄ 2 H 2 + 3 NaCl. Triethyl orthoformate is used in the Bodroux-Chichibabin aldehyde synthesis, for example: [3] RMgBr + HC(OC 2 H 5) 3 → RC(H)(OC 2 H 5) 2 + MgBr(OC 2 H 5)
Typically aqueous sodium hydroxide solutions are used. [1] [2] It is an important type of alkaline hydrolysis. When the carboxylate is long chain, its salt is called a soap. The saponification of ethyl acetate gives sodium acetate and ethanol: C 2 H 5 O 2 CCH 3 + NaOH → C 2 H 5 OH + NaO 2 CCH 3
Al 6 BeO 10: beryllium aluminium oxide: 12253-74-6 Al 6 O 13 Si 2: mullite: 1302-93-8 ArClF: argon chloride fluoride: 53169-15-6 ArClH: argon chloride hydride: 163731-17-7 ArFH: argon fluoride hydride: 163731-16-6 AsBrO: arsenic oxybromide: 82868-10-8 AsBr 3: arsenic tribromide: 7784-33-0 AsClO: arsenic monoxide monochloride: 14525-25-8 AsCl 3 ...
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