Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1979-07-23
1981-04-07
Garner, Vivian
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
260550, 560263, 568858, 585641, C07C 6700, C07C 6914, C07C 6924
Patent
active
042608147
ABSTRACT:
A process for the preparation of bromoalkyl esters and vicinal glycol esters which comprises thermally decomposing at temperatures of from 100.degree. C. to 200.degree. C. a bis(2-bromoalkyl)tellurium dicarboxylate compound of the formula ##STR1## wherein at least one R is hydrogen or R is a methyl group and R' is hydrogen or an alkyl group having 1 to 3 carbon atoms in the presence of an aliphatic monocarboxylic acid selected from formic, acetic, propionic or butyric acid employed as solvent and to facilitate solvolysis in the reaction to give in addition to the bromoalkyl ester, the vicinal glycol ester. An inert acetonitrile solvent may be employed alone to give predominately the bromoalkyl ester or an admixture with the acid may be employed. Oxygen is preferably employed with the carboxylic acid solvent to provide an increase in the mole ratio of vicinal glycol ester to the bromoalkyl ester produced.
REFERENCES:
patent: 3668239 (1972-06-01), Kollar
Ogawa et al., Bull. Chem. Soc., (Japan), Vol. 41, p. 3031, (1968).
Kao Jar-lin
Sheng Ming N.
Atlantic Richfield Company
Garner Vivian
McCaslin Delbert E.
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