Hydroxylation

In chemistry, hydroxylation is a reaction to introduce one or more hydroxyl groups . Conversely, dehydroxylation is the splitting off of a hydroxyl group. The hydroxyl group consists of one hydrogen and one oxygen atom . In organic chemistry it is represented by the functional groups of alcohols and organic acids . Some inorganic compounds such as silica and aluminum hydroxide also contain hydroxyl groups.

Examples

• Catalytic partial oxidation of methane to methanol

• Preparation of ethanol by catalytic hydration of ethene .

• A cis - dihydroxylation , by addition of permanganate (MnO ₄ ^- ) to a carbon -Kohlenstoff- double bond and subsequent hydrolysis are carried out using a dihydric alcohol ( diol ) is formed.

• Biochemical hydroxylations are made possible by enzymes such as hydroxylases , such as the hydroxylation of progesterone to corticosteroids .

• Dehydroxylation in the dealumination of zeolite Y by calcination to the ultra-stable form (USY)

Individual evidence

1. ↑ Entry on hydroxylation. In: Römpp Online . Georg Thieme Verlag, accessed on June 15, 2014.