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Glutaraldehyde is an organic compound with the formula (CH 2) 3 (CHO) 2.The molecule consists of a five carbon chain doubly terminated with formyl (CHO) groups. It is usually used as a solution in water, and such solutions exists as a collection of hydrates, cyclic derivatives, and condensation products, several of which interconvert.
Its reaction with acrolein is the first step in the commercial synthesis of glutaraldehyde. The alkene can be deprotonated at the vinyl carbon adjacent to the oxygen. [6] In particular, this approach allows the synthesis of a variety of acyl derivatives of silicon, germanium, and tin that cannot be made easily by other routes. [7] [8] [9]
Aldehyde structure. In organic chemistry, an aldehyde (/ ˈ æ l d ɪ h aɪ d /) is an organic compound containing a functional group with the structure R−CH=O. [1] The functional group itself (without the "R" side chain) can be referred to as an aldehyde but can also be classified as a formyl group.
Schiff bases can be synthesized from an aliphatic or aromatic amine and a carbonyl compound by nucleophilic addition forming a hemiaminal, followed by a dehydration to generate an imine.
The mechanism of the Mannich reaction starts with the formation of an iminium ion from the amine and formaldehyde. [4]: 140 The compound with the carbonyl functional group (in this case a ketone) will tautomerize to the enol form, after which it attacks the iminium ion.
Glutaraldehyde: This method works by the reaction between glutaraldehyde with amine groups to form Schiff bases or Michael-type double bond addition products. The yield of conjugates can be controlled by varying the pH of the reaction. Higher pH would give rise to more Schiff base intermediates and subsequently lead to the increase in hapten ...
Selenopyrylium and derivatives can be made from 1,5-diketones (such as glutaraldehyde) and hydrogen selenide, along with hydrogen chloride (HCl) as a catalyst using acetic acid as a solvent. A side product is 2,6-bis-(hydroseleno)selenacyclohexane.
Unlike other formylation reactions the Duff reaction is able to attach multiple aldehyde groups. If both ortho positions are vacant then a diformylation is possible, as in the formation of diformylcresol from p-cresol. [6] Conversion of phenol to the corresponding 1,3,5-trialdehyde has also been reported [7]