Chloral hydrate is an example of one of these, the geminal type, which tend to quickly lose water and become carbonyl compounds, while the vicinal or 1,2-type of these includes pinacol.
This functional group is the result of the Woodward Modification, which features substitution by a benzoate anion followed by hydrolysis. That reaction modifies the Pr?ost Reaction, which also produces these compounds from alkenes by way of adding iodine. The Upjohn method for producing them is similar to the Sharpless asymmetric method - both of these reactions usually use osmium tetroxide as a catalyst. In both of the above methods, these molecules are being formed from alkenes by way of dihydroxylation. Chloral hydrate is an example of one of these, the geminal type, which tend to quickly lose water and become carbonyl compounds, while the vicinal or 1,2-type of these includes pinacol. FTP, name these chemical compounds also known as glycols, so named because they contain two hydroxyl groups.
This functional group is the result of the Woodward Modification, which features substitution by a benzoate anion followed by hydrolysis.
diols (or accept glycol before mentioned)