In organic chemistry, the Ziegler process (also called the Ziegler-Alfol synthesis) is a method for producing fatty alcohols from ethylene using an organoaluminium compound. The reaction produces linear primary alcohols with an even numbered carbon chain. The process uses an aluminum compound to oligomerize ethylene and allow the resulting alkyl group to be oxygenated. The usually targeted products are fatty alcohols, which are otherwise derived from natural fats and oils. Fatty alcohols are used in food and chemical processing. They are useful due to their amphipathic nature. The synthesis route is named after Karl Ziegler, who described the process in 1955.[1][2]
^Cite error: The named reference Ullmann was invoked but never defined (see the help page).
^Zerong Wang "Ziegler Alcohol Synthesis (Ziegler Higher Alcohol Synthesis, Alfol Process, Ziegler-Alfol Process, Ziegler-Alfol Synthesis)" in Comprehensive Organic Name Reactions and Reagents, 2010, John Wiley & Sons, Inc. Online ISBN 9780470638859
In organic chemistry, the Zieglerprocess (also called the Ziegler-Alfol synthesis) is a method for producing fatty alcohols from ethylene using an organoaluminium...
Transesterification is the process of exchanging the organic functional group R″ of an ester with the organic group R' of an alcohol. These reactions...
Karl Waldemar Ziegler (German: [kaːʁl ˈvaldəˌmaʁ ˈt͡siːɡlɐ]; 26 November 1898 – 12 August 1973) was a German chemist who won the Nobel Prize in Chemistry...
petrochemical sources. In the Zieglerprocess, ethylene is oligomerized using triethylaluminium followed by air oxidation. This process affords even-numbered...
with salt solutions and can be separated by adding sodium chloride in a process known as salting out. It forms an azeotrope with water, resulting in a...
following year, the French chemist M.G. Bertrand isolated xylitol syrup by processing wheat and oat straw. Sugar rationing during World War II led to an interest...
anhydride. These processes include the Monsanto acetic acid synthesis, Cativa process, and Tennessee Eastman acetic anhydride process. Methanol is primarily...
valuable because it acts as a plasticizer, and slows down the staling process. A mixture of sorbitol and potassium nitrate has found some success as...
United States is produced commercially from fossil fuels. The most common process starts with propene (propylene), which is put through a hydroformylation...
more efficient synthesis. This methodology helps streamline the synthesis process and makes synthesis on an industrial scale more feasible. The much higher...
Ziegler (May 12, 1939 – February 10, 2003) was the 13th White House Press Secretary, serving during President Richard Nixon's administration. Ziegler...
esters by hydrogenation. It may also be produced synthetically via the Zieglerprocess. A classic laboratory method involves Bouveault-Blanc reduction of...
is produced from processing of fats, glycerol can be produced by various routes. During World War II, synthetic glycerol processes became a national...
Stearyl alcohol is prepared from stearic acid or certain fats by the process of catalytic hydrogenation. It has low toxicity. Merck Index, 11th Edition...
in air, typically using cobalt catalysts: 2 C6H12 + O2 → 2 C6H11OH This process coforms cyclohexanone, and this mixture ("KA oil" for ketone-alcohol oil)...
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