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ChemicalBook CAS DataBase List FEMA 2811

FEMA 2811 synthesis

14synthesis methods
By esterification of octanoic acid with octyl alcohol in the presence of HCl catalyst; or by passing vapors of octanoic acid and hydrogen over a copper chromium oxide catalyst at high temperature (320°C).
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Yield:2306-88-9 91 %Chromat. ,111-11-5 7 %Chromat.

Reaction Conditions:

with hydrogen bromide;dihydrogen peroxide in water at 65 - 70;

Steps:

Oxidation of primary alkanols 1a-h with H2O2-HBr in methanol or in a water-methanol mixture (general procedure).
General procedure: To a vigorously stirred solution of alkanol 1 (1 mmol) in 48% HBr in MeOH or MeOH-H2O, a solution of H2O2 (35%) in the corresponding solvent (1-1.5 mL) was added by portions (0.2-0.25 mL) at 65-70 °C (the reagent molar ratios are given in Tables 3 and 4). After addition of the first portion of the H2O2 solution, the reaction mixture turned to light yellow and after 20-30 min was colorless. Then the next portion of hydrogen peroxide was added. After completion of the reaction, the mixture was cooled, extracted with diethyl ether (3×15 mL), the combined organic layers were washed with water, dried with MgSO4, and the solvent was removed in vacuo. The conversions of alkanols and the product yields were determined by GC.

References:

Nikishin;Sokova;Terent´ev;Kapustina [Russian Chemical Bulletin,2015,vol. 64,# 12,p. 2845 - 2850][Izv. Akad. Nauk, Ser. Khim.,2015,# 12,p. 2845 - 2850,6]

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