[PDF] 1/3/2011 1 Chapter 16 Aldehydes and Ketones - FIU Faculty Websites PDF SolomonsSFW%20Chapter%2016.pdf

3 jan 2011 · equivalents of ROH, a cyclic acetal is formed Aldehydes and Ketones— Cyclic Acetals • Like gem-diol formation, the synthesis of acetals is

Intramolecular cyclization of a hydroxy aldehyde forms a hemiacetal with a new stereogenic center, so that an equal amount of two enantiomers results Cyclic hemiacetals can be converted to acetals by treatment with an alcohol and acid This converts the OH of the hemiacetal into the OR group of an acetal

[PDF] Intramolecular acetal formation mechanism

Intramolecular acetal formation mechanism In this organic chemistry topic, we'll see how alcohols (R-OH) add to carbonyl groups Carbonyl groups are

[PDF] Aldehydes and Ketones 1

Hydration of a carbonyl group gives a good yield of gem-diol only with an Acetal formation is catalyzed by acids, commonly p-toluenesulfonic acid (TsOH)

[PDF] Aldehydes can react with alcohols to form hemiacetals

Cyclic acetals, formed by reaction of a single molecule of a diol, a compound containing two hydroxyl groups, are also important When the diol is ethylene glycol (

[PDF] 1910 ACETALS AND THEIR USE AS PROTECTING GROUPS

equivalent of a 1,2- or 1,3-diol can react to form a cyclic acetal, in which the The first step in the mechanism of acetal formation is acid-catalyzed addition of the