How do you remove acetonide?
Acetonide is a common protecting group for 1,2- and 1,3-diols. The protecting group can be removed by hydrolysis of the ketal using dilute aqueous acid.
How can we protect phenol?
Ethers are the most widely used protective groups for phenols and in general they are more easily cleaved than the analogous ethers of simple alcohols. Esters are also important protective groups for phenols, but are not as stable to hydrolysis as the related alcohol derivatives.
What is the meaning of acetonide?
Medical Definition of acetonide : a cyclic acetal formed especially by reaction of acetone with both hydroxyl groups of a diol — see fluocinolone acetonide.
Is acetonide and acetone the same?
As nouns the difference between acetone and acetonide is that acetone is (organic compound) a colourless, volatile, flammable liquid ketone, (ch3)2co, used as a solvent while acetonide is (organic chemistry) any cyclic acetal derived from acetone and a diol, especially from a vicinal diol.
Is triamcinolone acetonide an antibiotic?
Triamcinolone (Trianex) is a steroid medication used to treat the itching, redness, crusting, scaling, inflammation, and discomfort of various skin conditions. There are many formulations available, including a cream, ointment, and lotion.
Is it possible to protonate enol ether?
Instead, you need to use the fact that an enol ether is very much like an enol. It is nucleophilic on the α-carbon, and you can protonate it on that carbon, almost like you are tautomerising an enol back to a ketone.
Which glycosidic linkages are not attacked by enol ethers?
Enol ethers, glycosidic linkages and acid-sensitive protecting groups such as tert -butyldimethylsilyl, 2- (trimethylsilyl)ethyl, or tert -butoxycarbonyl are not attacked. F. Pfrengle, V. Dekaris, L. Schefzig, R. Zimmer, H.-U. Reissig, Synlett, 2008, 2965-2968.
Is it possible to convert enol ether to aldehyde?
From what I can tell, you are having more trouble with the acidic hydrolysis of an enol ether to an aldehyde. As has been pointed out by some comments, your proposed mechanism is not really possible.
What are enol ethers used for?
Enol ethers have proved to be a useful source of 1-alkoxyalkyl isocyanates by the acid-catalysed addition of isocyanic acid (Equation (14)) < 63JOC2082 >. Hydrazoic acid reacts readily with silyl enol ethers, which, in the presence of an alcohol, undergo trans -etherification giving alkyl 1-azidoalkyl ethers.